JPH10133638A - Color selection managing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress technical colors by providing a 1st step for comparing priority given to color data by referring to an image color table of an image to be displayed and a 2nd step for selecting color data of high priority in order and registering them in a display color table. SOLUTION: A decision block 60302 checks whether or not color data acquired in a step 60301 is the color of high priority. When so, it is registered in the display color table in a step 60303. A decision block 60304 checks whether or not the registration is completed. When the registration is completed, colors in the display color table are used in a step 60305 to display an image. This method can take priority out of color data of each pixel value data of the image, so when the image is displayed, the picture quality is improved and techinical colors can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color selection management method, and more particularly to a method for switching the display of images having different color map information or displaying a plurality of images simultaneously.

[0002]

2. Description of the Related Art As a window system for displaying a multi-window on a computer screen, for example, X-WI
There are NDOW, Windows, and Macintosh. When displaying a color image on these window systems, if one byte is used for each of RGB, 24
Although it can be displayed in the color of the ride,
In many cases, the number of colors that can be displayed at the same time due to the limitation of M capacity is limited to 256 colors out of 2 24 powers.

In an environment where 256 colors can be displayed, the RGB values of the currently displayed image are managed in a display color table. When an RGB value of the display color table is replaced while an image is displayed in the window, the color of the image being displayed may change.
The replacement of the RGB values occurs when a transition is made from a state in which one image is displayed in the window to a state in which another image is displayed together with the image. That is, the color table is constructed for each image, and when displaying one image, the color table constructed for that image is loaded into the display color table of the display, but a plurality of images are displayed. At this time, one of the plurality of color tables is selected and loaded into the display color table of the display. At this time, if the color table loaded later is different from the color table loaded earlier, the color of the initially displayed image will change on the way. This color change is generally called a technicolor effect and causes discomfort to the user. In particular, an image based on a natural image uses many colors and the technicolor effect is likely to occur.

[0004] As a solution for the technicolor in a conventional window system, a method described in Japanese Patent Application Laid-Open No. 6-102849 is known. FIG. 60 shows the flow of color data in the conventional color selection management method. Figure 60
, 10 is a display color table, 12 is a default color table, 14 is a first color table, 16
Is a second color table. Reference numeral 18 denotes basic colors such as an interface color for displaying a background and a border, a high-luminance display color, and a vector color for displaying graphics. Reference numeral 20 denotes an image color. The display color table 10 is a color table used when displaying a color image on a display unit (not shown). Prior to the display operation, the display color table 10 is loaded with the contents of the table from the default color table 12 or the first and second color tables.

The default color table 12 is used for removing the technicolor effect, and the first and second color tables 14 and 16 are tables created by the user according to his or her own preference. The operation of the color selection management method configured as described above will be described below. First, RGB values for displaying the basic colors 18 are assigned to the default color table 12 together with priorities. Since the basic colors include several colors such as the interface color, the light intensity display color, and the vector color as described above, the priority is given in advance to the RGB values of each color. Next, the RGB values for displaying the image color 20 are stored in the default color table 1.
Assign using a true color set or a reduced color set or a mathematically close color set to 2. At this time, if the contents of the default color table 12 are full, the RGB of the lowest priority basic color 18 is set.
Replace values first. Then, the contents of the default color table 12 are sent to the display color table 10 and are referred to when displaying an image on the display unit.

When the creation of the first color table 14 or the second color table 16 is instructed when the contents of the default color table 12 are full, the RGB values of the basic color 18 are first set to the first color table. Of the color table 14 or the second color table 16 together with the priority. Next, the RGB values of the image color 20 are allocated to the first color table 14 or the second color table 16. At this time, the first color table 1
If the contents of the fourth or second color table 16 are full, the RGB of the lowest priority basic color 18 is displayed.
Replace values first.

[0007]

By the way, the above-mentioned color selection management method uses an interface for displaying a background and a border for each color used in the first image when, for example, two images are displayed simultaneously. To prioritize classes such as color, high-brightness display color, and vector color to display graphics, screen flash (Technicolor (Same effect) is reduced, but in the first image, a screen flash is inevitably generated, so that it is not always minimized.

Similarly, in the above-described configuration, the priority can be set and replaced only with the RGB values of the basic colors provided by the system.
If the GB values are assigned to the default color table, the image to be displayed next will have less assignment of the number of RGB values, which will make the image dirty or require a color set selection when displaying the image. Therefore, there is a problem that it is not possible to determine which color set is actually displayed when creating image data. In the above conventional method, if the size of the image color table of a certain image is larger than the size of the display color table, the color data in the image color table cannot be assigned to the display color table, or Although a part of the color data in the image color table can be assigned to the display color table, the assignment for displaying the image with better image quality has not been adjusted.

Also, when trying to display a plurality of images,
The color data of the image color table corresponding to those images is sequentially allocated to the display color table, and the display color table becomes full when the sum of the allocated numbers exceeds the size of the display color table. At this time, in the above-described conventional method, after the display table is full, the low-priority color data among the already allocated color data is expelled, and the color that needs to be allocated after the time when the display table becomes full is full. Since data is stored (replaced), color data assigned before the display color table becomes full is deallocated in ascending order of priority. In fact, color data that has been deallocated may be more important than color data allocated after the display color table is full, but this is not taken into account. for,
Problems such as deterioration of image quality and generation of technicolor have occurred.

In the above-mentioned conventional technique, an image palette most suitable for one image is assigned to a display palette in order to display one image. However, if there is a bias in the color distribution of the image palette, another image is displayed on the display palette. When trying to display with the color reduction processing using the color in the above, it was not possible to display clearly. According to the first to third aspects of the present invention, in order to solve the above-described conventional problems, a display color is selected based on color data of each pixel value data of an image, and a change in the display color is minimized. Therefore, it is an object of the present invention to provide a color selection management method for reducing screen flashes.

According to the fourth to seventh aspects of the present invention and the sixteenth to nineteenth aspects of the present invention, the size of an image color table of a certain image is solved in order to solve the above-mentioned conventional problems. However, it is an object of the present invention to provide a method of displaying images with better image quality when the size is larger than the size of the display color table. According to claims 8 to 15 and 16 to 19 of the present invention, in order to solve the above-mentioned conventional problems, when displaying a plurality of images, the improvement of image quality and the improvement of technicolor are achieved. It is an object of the present invention to provide a method for realizing control (reduction, suppression, etc.).

It is another object of the present invention to provide a display palette including a true color of an image whose color distribution is to be displayed and having a good color distribution. Claim 26 of the present invention solves the above-mentioned conventional problems by using the frequency of color data of each pixel value data of an image, the current number of uses, the number of uses, the use time, the priority of the window, An object of the present invention is to provide a color selection management method for selecting display colors and reducing screen flashes based on the priority of color characteristics of color data of each pixel value data of an image and the priority of color gradation. It is assumed that.

[0013] The invention of claim 27 of the present invention solves the above-mentioned conventional problem. When the display of a screen in a single application is switched, based on the color information of the preceding and following images.
An object of the present invention is to provide a color selection management method for warning that a technicolor will occur in a window displayed by an application. The inventions of claims 28 to 33 of the present invention solve the above-mentioned conventional problems.
When switching the screen display within a single application,
An object of the present invention is to provide a color selection management method for preventing a technicolor from occurring in a window displayed by an application based on color information of preceding and following images.

The invention according to claims 33 to 44 of the present invention solves the above-mentioned conventional problems. When the display of a screen in a single application is switched, the color information of the preceding and following images is used. It is an object of the present invention to provide a selection management method for making technicolor inconspicuous in a window displayed by an application. The present invention described in claims 45 to 56 solves the above problems,
An object of the present invention is to assign an area to the image color table in advance so as to allocate an entry of the image color table so as not to cause a technicolor phenomenon when a display image is switched.

According to the present invention, the technicolor phenomenon which occurs when the displayed image is switched can be confirmed in advance, and adjustment such as editing the image color table or the image can be performed. It is an object of the present invention to suppress the technicolor phenomenon as much as possible or to enable the technicolor phenomenon to be used as an effect at the time of image switching display by enabling automatic or semi-automatic operation.

An object of the present invention is to provide a method of allocating a color table that does not cause a technicolor to a still image as well as a moving image, and a method of adjusting a technicolor phenomenon. . According to the invention of claims 65, 66, 67, 68, and 69 of the present invention, one image is selected from a plurality of images as a representative image, and the display color table is stored in the representative image. An object of the present invention is to replace a color table with a selected representative image and display the selected representative image on a screen in its original color, and to minimize the technicolor generated at that time.

[0017]

According to a first aspect of the present invention, there is provided a color selection management method, comprising: an image color table; a display color table for storing colors displayed on display means; And assigning color data in the image color table to the display color table, and each pixel value data of an image and the display color table corresponding to the color data in the image color table specified by the pixel value data A first step of comparing the priorities assigned to the color data with reference to an image color table of an image to be displayed in an image display device displaying image data represented by a set of color data assigned to the image data And a second step of sequentially selecting color data having the highest priority and registering the selected color data in the display color table.

According to a second aspect of the present invention, there is provided a color selection management method according to the first aspect, wherein each color data of the image color table is divided into groups. The second step is characterized in that, of the colors grouped as a color group, a process of sequentially selecting from the color group of the color data with the highest priority and registering it in the display color table is performed.

According to a third aspect of the present invention, there is provided a color selection management method according to the first aspect, wherein each color data of the image color table is divided into groups. The second step is characterized in that a process of sequentially selecting a color of color data with a higher priority from a color group and registering the selected color in the display color table is performed.

According to a fourth aspect of the present invention, there is provided a display color table and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the pixel value data are used. An image display device for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified, wherein the color data in the image color table And assigning color data in the image color table to the display color table in order from color data having higher priority.

According to a fifth aspect of the present invention, there is provided a display color table and an image color table, wherein color data in the image color table is assigned to the display color table. An image display device for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in the specified image color table, wherein the color data in the image color table Are grouped, and priorities are assigned to the color data groups in the image color table, and the color data groups in the image color table are sequentially added to the display color table in groups from the group having the higher priority. It is characterized by assigning.

According to a sixth aspect of the present invention, there is provided a display color table and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are used. An image display device for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified, wherein the color data in the image color table When assigning priority to the color data in the image color table and assigning it to the display color table, it is checked whether the display color table is full.If the display color table is full, Is the color data having the lowest priority among the color data assigned to the display color table. Data, and compares the detected color data with the priority of the color data that is to be newly allocated.If the priority of the color data that is to be newly allocated is higher than the detected color data, The color data to be newly assigned is replaced with the detected color data and assigned to the display color table.

According to a seventh aspect of the present invention, there is provided a display color table and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are used. An image display device for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in the specified image color table, wherein the color data in the image color table Are grouped, priorities are assigned to groups of color data in the image color table, groups of color data in the image color table are assigned to the display color table in group units, and color data in the image color table are When assigning a group to the display color table, Table and determines if it is full, wherein when the display color table is full, the
The color data group having the lowest priority among the color data groups assigned to the display color table is detected as the replacement target group, and the priority of the replacement target group and the color data group to be newly assigned is detected. If the priority of the color data group to be newly assigned is higher than that of the replacement target group, the color data group to be newly assigned is replaced with the replacement target group. In the display color table.

The invention according to claim 8 is provided with a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are assigned. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Respectively correspond to the image color table, prioritize the color data in the image color table, and when displaying one or more of the images simultaneously, all the images corresponding to the displayed images The color data in the color table is stored in the display color table in order from the color data having higher priority. Ri It is characterized in that shed.

According to a ninth aspect of the present invention, there is provided a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Respectively correspond to the image color table, group the color data in the image color table, assign a priority to the group of color data in the image color table, and display one or a plurality of the images simultaneously. The group of color data in all the image color tables corresponding to the displayed image The flop is characterized in that assigned to the display color table in groups in order from the group with the higher priority.

According to a tenth aspect of the present invention, there is provided a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the pixel value data are assigned. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Respectively correspond to the image color table, prioritize the color data in the image color table, and when displaying each of the images, in the image color table corresponding to each of the displayed images Color data is assigned to the display color table, and the color data in the image color table is When assigning to the display color table, it is checked whether or not the display color table is full, and if the display color table is full, of the color data assigned to the display color table, The color data having the lowest priority is detected, the priority of the detected color data is compared with the priority of the color data to be newly allocated, and the priority of the color data to be newly allocated is compared with the detected color data. If it is higher, the color data to be newly assigned is replaced with the detected color data and assigned to the display color table.

The invention according to claim 11 is provided with a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the pixel value data are assigned. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Respectively correspond to the image color table, group the color data in the image color table, assign a priority to the color data group in the image color table, and display each of the images. Group of color data in the image color table corresponding to each of the images Assigned to the display color table in each loop, in assigning a group of color data in the image color table on the display color table,
Checking whether the display color table is full,
When the display color table is full, a color data group having the lowest priority among color data groups assigned to the display color table is detected as a replacement target group, and the replacement target group is detected. And the priority of the color data group to be newly assigned is compared. If the priority of the color data group to be newly assigned is higher than the replacement target group, the priority is newly assigned. The present invention is characterized in that a group of existing color data is replaced with the group to be replaced and assigned to the display color table.

According to a twelfth aspect of the present invention, there is provided a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the pixel value data are assigned. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Are respectively associated with the image color tables, and priorities are assigned to the image color tables, and when one or a plurality of the images are simultaneously displayed, all of the image color tables corresponding to the displayed images are displayed. The color data is sorted in order from the color data in the image color table having a higher priority. It is characterized in that assigned to indicate the color table.

According to a thirteenth aspect of the present invention, there is provided a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are stored. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Respectively correspond to the image color table, group the color data in the image color table, assign a priority to the image color table, when displaying one or more of the images simultaneously, the displayed A group of color data in all the image color tables corresponding to an image is assigned higher priority. Is characterized in that assigned to the display color table in groups in order from the group of color data in the said image color table with.

According to a fourteenth aspect of the present invention, there is provided a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are stored. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Are respectively associated with the image color table, and priorities are assigned to the image color tables, and when displaying each of the images, the color data in the image color table corresponding to each of the displayed images is referred to as Assigned to a display color table, and color data in the image color table is stored in the display color table. When allocating to the table, it is checked whether the display color table is full. If the display color table is full, the lowest among the color data allocated to the display color table is checked. Detecting the color data in the image color table having the priority, comparing the priority of the image color table having the detected color data with the priority of the image color table having the color data to be newly allocated, and detecting If the priority of the image color table having the color data to be newly assigned is higher than that of the image color table having the color data obtained, the color data to be newly assigned is detected by the detected color data. And assigning it to the display color table.

According to a fifteenth aspect of the present invention, there is provided a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table. An image display device that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the image color table specified by Respectively correspond to the image color table, group the color data in the image color table, assign a priority to the image color table, and display each of the images. The corresponding color data groups in the image color table are displayed in groups. When the display color table is full, it is checked whether the display color table is full when assigning the color data groups in the image color table to the display color table. Detects a group of color data in the image color table having the lowest priority among the groups of color data assigned to the display color table as a replacement target group, and has the replacement target group. Compare the priorities of the image color table and the image color table having the group of color data to be newly assigned, and compare the priority of the image color table with the group to be replaced with the color data group to be newly assigned. If the priority of the image color table with To is characterized in that assigning a group of color data that is about newly allocate, to the display color table is replaced with the replacement target group.

The invention of claim 16 is the invention of claim 7, claim 1
1. In the processing procedure of claim 15, when the replacement target group is detected, if the replacement target group is deallocated from the display color table, the color data group to be newly allocated can be allocated. One or more replacement target groups are detected.

[0033] The seventeenth aspect of the present invention provides the seventh aspect and the first aspect.
1. In the processing procedure according to claim 15, when detecting the replacement target group, when the allocation is released from the display color table, the number of color data that can be allocated to the display color table is newly allocated. The replacement target group is detected from a group of color data that is equal to or more than the number of color data belonging to the color data group to be replaced.

[0034] The invention of claim 18 is the invention of claim 7, claim 1
1. In the processing procedure of claim 15, when the group to be replaced is detected, when the assignment is released from the display color table, the number of color data that can be assigned to the display color table is newly assigned. One or more replacement target groups are detected in ascending order of priority so as to be equal to or more than the number of color data belonging to the color data group to be replaced. At the time of comparing the priorities, among the detected one or more replacement target groups, the one having the highest priority is set as a comparison target, and when replacing with the color data group to be newly assigned, Replaces a group of color data to be newly assigned with one or more detected replacement target groups. And collectively replaced it is characterized in that assigned to the display color table.

According to a nineteenth aspect of the present invention, in the processing procedure of the fourth to eighteenth aspects, not the image color table, the color data in the image color table, or the group of color data in the image color table itself, A priority is given to the image color table, a set of color data in the image color table, or a set of color data groups in the image color table.

According to a twentieth aspect of the present invention, there is provided a display color table and an image color table, wherein color data in the image color table is allocated to the display color table, and each pixel value data of an image is allocated to the display color table. In an image display device that displays image data represented by a set of color data that has been set, a step of dynamically obtaining a color to be displayed as a true color as a priority color and allocating the color to a display color table is determined. Assigning color data to be assigned to the remaining entries of the display color table that do not have a color distribution with good color distribution.

According to a twenty-first aspect of the present invention, the remaining entries of the display color table for which the assignment has not been determined include:
A step of allocating color data obtained by removing color data closest to each color already allocated to the display color table from an image color table composed of color data having a good color distribution prepared in advance. Item 20. A color selection management method according to Item 20.

The invention according to claim 22 is characterized in that a predetermined number of frequently used colors are detected, and the detected colors are used as priority colors. According to a twenty-third aspect of the present invention, a color commonly used in a plurality of image color tables is detected, and the detected color is used as a priority color. The invention according to claim 24 is characterized in that a predetermined number of colors commonly used in a plurality of image color tables are detected, and the detected colors are used as priority colors.

According to a twenty-fifth aspect of the present invention, there is provided the step of previously assigning some colors to the display color table as fixed colors, wherein the priority color is not the same as the fixed color, and there are remaining entries in the display color table. In some cases, the method includes a step of assigning the color table to the display color table. In order to achieve the above object, the color selection management method according to the twenty-sixth aspect of the present invention, in the color management step of the color selection management method according to any one of the first to third aspects, comprises: Current usage count, usage time, window priority, priority given to color characteristics,
Color brightness, color density, color freshness, color saturation, priority given to color gradation, priority to give higher color closer to color gradation, higher priority to far color in color gradation It is characterized in that one of these is selected.

According to the twenty-seventh aspect of the present invention, in order to achieve the above object, when the screen display is switched from the first image to the second image, the first number of colors that can be displayed on the screen is changed by the first number. A step of detecting whether color replacement occurs when displaying the second image from the colors used in the image and the colors used in the second image, and displaying that the color replacement will occur Is displayed.

According to the twenty-eighth aspect of the present invention, in order to achieve the above object, when switching the screen display from the first image to the second image, the first number of colors that can be displayed on the screen is changed by the first number. Detecting whether a color replacement occurs to display the second image from the color used in the image and the color used in the second image, and according to whether the color replacement occurs Displaying the third image while displaying the first image and the second image, and replacing the color of the display color table while displaying the third image. .

According to a twenty-ninth aspect of the present invention, in order to achieve the above object, the third image is displayed using a common color of the first image and the second image. In the invention according to claim 30, in order to achieve the above object, the third image is any one of an image obtained by reducing the color of the first image and an image obtained by reducing the color of the second image. .

According to a thirty-first aspect of the present invention, in order to achieve the above object, an image obtained by reducing the color of the first image and an image obtained by reducing the color of the second image are sequentially displayed as the third image. I have. In the invention according to claim 32, in order to achieve the above object, as the third image, the number of colors of the first image is reduced and the number of colors of the second image is reduced. Are displayed in order of increasing the number.

According to the thirty-third aspect, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs Displaying an image, and sequentially replacing each of the entries to be replaced among the entries of the color table while the third image is displayed.

According to the thirty-fourth aspect, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display the second image from the colors used in the second image; and a second image as the third image depending on whether the color replacement occurs. Displaying an image, and sequentially replacing each of the entries to be replaced among the entries of the color table while the third image is displayed.

According to the thirty-fifth aspect of the present invention, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs The method further comprises the steps of sequentially displaying an image and a second image, and sequentially replacing each of the entries to be replaced among the entries of the color table while the third image is displayed.

In the invention according to claim 36, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs The method is characterized by comprising a step of repeating the step of displaying an image and the step of bringing the content of the entry of the color table closer to the color to be replaced while the third image is displayed.

According to the thirty-seventh aspect, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display the second image from the colors used in the second image; and a second image as the third image depending on whether the color replacement occurs. The method is characterized by comprising a step of repeating the step of displaying an image and the step of bringing the content of the entry of the color table closer to the color to be replaced while the third image is displayed.

According to the thirty-eighth aspect of the present invention, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs It is characterized in that it has a step of repeating the step of displaying the image and the second image in order, and the step of bringing the content of the entry of the color table closer to the color to be replaced while the third image is displayed.

According to the thirty-ninth aspect, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs Using an image and repeating the step of bringing the contents of the entries of the color table closer to the color to be replaced while the third image is displayed. Is characterized by having a step using a large number of repeated steps.

In the invention according to claim 40, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the number of colors used in the first image differ from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display the second image from the colors used in the second image; and a second image as the third image depending on whether the color replacement occurs. Displaying the image, and repeating the step of bringing the content of the entry of the color table closer to the color to be replaced while the third image is displayed. In addition, the method is characterized in that it has a step that uses a large number of repeated steps.

In the invention according to claim 41, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs Displaying the image and the second image in order, and repeating the step of bringing the content of the entry of the color table closer to the color to be replaced while the third image is displayed. It is characterized in that it has a step of using a large number of repeated steps for an entry having a large difference.

In the invention according to claim 42, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the number of colors used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs It is characterized in that it comprises a step of displaying an image and a step of arbitrarily changing the content of an entry to be replaced in the color table while the third image is displayed.

In the invention of claim 43, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the number of colors used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display the second image from the colors used in the second image; and a second image as the third image depending on whether the color replacement occurs. It is characterized in that it comprises a step of displaying an image and a step of arbitrarily changing the content of an entry to be replaced in the color table while the third image is displayed.

In the invention according to claim 44, when the screen display is switched from the first image to the second image, the number of colors that can be displayed on the screen and the color used in the first image are different from the number of colors that can be displayed on the screen. Detecting whether a color replacement occurs to display a second image from the colors used in the second image, and a first image as a third image depending on whether the color replacement occurs Displaying the image and the second image sequentially, and repeating the step of arbitrarily changing the contents of the replaced entry in the color table while the third image is displayed. I have.

The present invention according to claim 45 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are An image display device that displays image data represented by a set of image color table management means for managing color data in the image color table, wherein the image color table management means includes a plurality of the image color tables. In this case, the color data is assigned so that each entry does not overlap.

The present invention according to claim 46 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In the image display device that displays the image data represented by the set of, an image color table management unit that manages the color data in the image color table is provided, and there are a plurality of images to be displayed, and the order in which the images are displayed is When it is determined in advance, the image color table management means allocates half the number of assignable entries of color data to the image color table of the image.

The present invention according to claim 47 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are An image display device for displaying image data represented by a set of image color table management means for managing the color data in the image color table, there are a plurality of images to be displayed, the total number of images is predetermined In this case, the image color table management means assigns color data to the image color table of the image by dividing the number of assignable entries by the total number of images.

The present invention according to claim 48 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are An image display device for displaying image data represented by a set of image color table management means for managing the color data in the image color table, and when the image A is newly added as a terminal image, the image The color table management means assigns color data to the image color table A of the image A so that entries do not overlap with the image color tables of all images that can be displayed immediately before.

The present invention according to claim 49 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are assigned. An image display device for displaying image data represented by a set of image color table management means for managing color data in the image color table, and when adding a new image A as an intermediate image, The color table management means is configured to color the image color table A of the image A so that entries do not overlap with the image color tables of all images that can be displayed immediately before and the image color tables of all images that can be displayed immediately after. Data is allocated.

The present invention according to claim 50 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In the image display device that displays the image data represented by the set of, the image color table management unit that manages the color data in the image color table and the image color table management unit notify a warning when an entry cannot be assigned. And a warning notifying means.

The present invention according to claim 51 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In an image display device for displaying image data represented by a set of image color tables, image color table management means for managing color data in the image color table is provided, and common color data is assigned in advance to the image color table. The image color table management means allocates color data to the assignable area by defining an area other than the common area as an assignable area.

The present invention according to claim 52 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In an image display device for displaying image data represented by a set of image color tables, image color table management means for managing color data in the image color table is provided, and common color data is assigned in advance to the image color table. The common area is determined, and an entry other than the common area is set as an assignable area. The image color table management unit assigns an entry in the common area only when the color data matches the color data in the common area. Color data that cannot be assigned to the entry And allocating an entry in the performance area.

The present invention according to claim 53 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are assigned. In the image display device for displaying the image data represented by the set of, an image color table management means for managing the color data in the image color table is provided, and common color data is previously assigned to the image color table. The common area is determined, and an entry other than the common area is set as an assignable area. If the image color table management means matches the color data in the common area or a color within a predetermined range, the common area is used. Is assigned to the entry in the common area. For against is not color data and allocates an entry of the allocatable area.

The present invention according to claim 54 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In an image display device for displaying image data represented by a set of image color tables, image color table management means for managing color data in the image color table is provided, and common color data is assigned in advance to the image color table. The image color table management means allocates a predetermined number of entries in the allocatable area, and assigns the remaining entries in the common area to a predetermined number. Assign to the closest color data entry in the color data And wherein the door.

The present invention according to claim 55 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is allocated to the display color table, and each pixel value data of an image and color data allocated to the display color table are An image display device that displays image data represented by the set of (1) has a function of limiting an assignable area of an entry.

The present invention according to claim 56 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are assigned. In an image display device that displays image data represented by a set of, an allocation information notification unit that notifies information about the image color table is provided, and the allocation information notification unit notifies the information about the image color table. Features.

The present invention according to claim 57 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are assigned. In an image display device for displaying image data represented by a set of images, an image enumeration display means for displaying a plurality of images, and an image for designating image data of interest from among all images displayed by the image enumeration display means Instructing means, and redraw command means for notifying the image enumeration display means that the image is to be redrawn most using an image color table of the image data designated by the image instructing means. The display is capable of confirming the accompanying technicolor phenomenon.

The present invention according to claim 58 has at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are An image display device for displaying image data represented by a set of image data is characterized by comprising an image color table editing means for editing an image color table of a designated target image.

The present invention according to claim 59 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are The image display device for displaying the image data represented by the set of (1) is characterized by comprising an image color table automatic adjusting means for automatically adjusting the image color tables of the image of interest or all the images.

The present invention according to claim 60 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In an image display device that displays image data represented by a set of: Image detecting means for detecting an image that satisfies the condition based on the condition and the information of the image table of the plurality of images, and a detected image displaying means for displaying the image detected by the image detecting means so as to be distinguishable from other images. , Is provided.

The present invention according to claim 61 has at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In an image display device that displays image data represented by a set of images, an image enumeration display unit that displays a plurality of images and a plurality of image data of interest are designated from among all the images displayed by the image enumeration display unit An image color table comparing and inspecting means for comparing image color tables of the plurality of images specified by the image instruction means and detecting information on a common part and a non-common part of the image color table; Displaying the information detected by the image color table comparison inspection means,
Inspection result display means.

The present invention according to claims 62 to 63 comprises at least one display color table and at least one image color table, and assigns color data in said image color table to said display color table, In an image display device for displaying image data represented by a set of each pixel value data of an image and color data assigned to the display color table, an image enumeration display means for displaying a plurality of images and the image enumeration display Means for designating a plurality of image data of interest from among all images displayed by the means, and designating processing instructions to be applied to the image color tables of the plurality of images designated by the image designating means Processing designation means, and the color table or the required color table according to the processing instruction designated by the processing designation means Depending characterized in that and a processing execution means for performing processing on the image.

The present invention according to claim 64 provides at least one
One display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are In the image display device for displaying the image data represented by the set, the moving image is also targeted.

According to a sixty-fifth aspect of the present invention, in a computer system environment having a processor, a memory, and a display, and managing colors displayed on the display by a display color table in the memory, two or more images are simultaneously displayed on the display. During display, a representative image selecting unit that sets one of two or more images being displayed as a representative image according to an instruction of the operator, and a representative image is selected by the representative image selecting unit. Replacing the common color table with the first image color table used in the representative image selected by the representative image selecting means, and all image color tables used in the images other than the representative image. Is replaced with a second image color table in which all storage locations represent the same color. That.

According to the 66th aspect of the present invention, there is provided a representative color image selecting means for sequentially selecting one image as a representative image with a lapse of a predetermined time when two or more images being displayed are simultaneously displayed. doing. In the invention of claim 67, two or more images share one second image color table.

In the sixty-eighth aspect of the present invention, as the second image color table, all storage locations represent the same color, and the color represented by the storage location is represented by the first image color table. An image color table, which is one of the colors, is used. In the invention of claim 69, as the second image color table, the colors representing all the storage positions are constituted by several representative colors selected from the colors represented in the first image color table. Image color table is used.

[0078]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) Hereinafter, an embodiment of a color selection management method according to claim 1 of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an embodiment of a color selection management method according to the present invention.

In FIG. 1, reference numeral 60101 denotes a display unit 6
0102 is data describing pixel values of an image to be displayed. Reference numeral 60102 denotes a display unit such as a CRT or a printer. An image color table 60103 stores color data. Reference numeral 60104 denotes a color management step for managing color data. Reference numeral 60105 denotes a display color table for storing display colors.

In the color data stored in the image color table 60103, one set of RGB values is described for each index number as indicated by 60201 in FIG. Generally, there are 256 index numbers from 0 to 255. Each index describes a priority. This priority is assigned to each image color table. The criteria for assigning priorities include, for example, the level of luminance and the frequency of use of the image color table. The criteria for assigning priorities will be described in more detail in a later embodiment.

A method for selecting an image of the pixel value data 60101 from the image color table 60103 and displaying it on the display means 60102 will be described below. (1) The image color table 60103 stores color data information having priority as described above. This color data information is obtained by image data or instructions from a user or an application program.

(2) The color management step 60104
Image color table 60 of each image to be displayed
The color data values stored in the table 103 are checked and registered in the display color table 60105 in order from the color data of the color with the highest priority. Here, it should be noted that the priorities of all image color tables are compared and registered in the display color table 60105 in ascending order of color data.

(3) When the registration is completed, the pixel value data 601 is displayed using the colors of the display color table 60105.
The image 01 (the image to be displayed) is displayed by the display unit 6.
0102 is displayed. FIG. 2 is a diagram showing a flow of color data generated in one embodiment of the color selection management method of the present invention.

In FIG. 2, reference numeral 60201 denotes an image color table for storing color data. Reference numeral 60202 denotes a color management step for managing color data. 6020
Reference numeral 3 denotes a display color table for storing display colors. (1) The image color table 60201 includes, as color data information, an INDEX value indicating the pixel value data 60101;
An RGB value indicating the degree of red, green, and blue of the color, a priority, and the like are stored. This color data information is obtained by image data or an instruction from a user, an application program, or the like, and the priority or the like can be changed.

(2) Color management step 60202
The priority data values in the image color table 60201 are checked, colors are selected in descending order of priority, and RGB values are registered in the display color table 60203. (3) When registration is completed, the display color table 6020
The image of the pixel value data 60101 is displayed on the display unit 60102 using the three colors.

FIG. 3 is a flowchart showing a method of selecting a color in one embodiment of the color selection management method of the present invention. In step 60301, the image color table 6
The color data is acquired from 0201. In decision block 60302, step 6030
It is checked whether the color data acquired in step 1 has a high priority. If the color has a higher priority, the color is registered in the display color table 60203 in step 60303. In decision block 60304, check if registration has been completed. If completed, step 60305
, An image is displayed using the colors of the display color table 60203.

(Embodiment 2) Another embodiment of the color selection management method of the present invention will be described below. This embodiment is different from the previous embodiment in that the image color table 60401 has a color group as one of the color data information as shown in FIG. Here, as an example of the color group, RGB
R values expressed as values are 120 colors, that is, (120, 0, 0), (120, 100, 10)
0), (120, 50, 120). Or red,
It is also possible to make a group for each hue such as green, blue and yellow.

As another example of the color table, (R, G, B) represented by RGB values are (120, 5,
0, 120), (121, 50, 120),.
0, 50, 121),..., (130, 50, 140). Note that the color groups may be one group.

As described above, when a color group is provided as color data information, a different priority is described for each group, and a different priority is assigned to each color data even within one group. Sometimes. FIG. 5 is a flowchart illustrating a method of selecting a color according to another embodiment of the color selection management method of the present invention.

(1) In step 60501, color data is acquired from the image color table 60401. (2) In Step 60502, Step 6050
A color group of the color data obtained in step 1 is obtained. (3) In decision block 60503, step 60
In the color groups of the image color table 60401 acquired in 502, a color group having a higher priority is checked.

If the color group has a higher priority, the color group is registered in the display color table 60403 in step 60504. On the other hand, if different priorities are assigned to the respective color data even in the same group, the color having the highest priority in the color group is registered in the display color table 60403 in step 60504.

(4) In the judgment block 60505,
Check if registration has been completed. If the processing has been completed, in step 60506 the display color table 604 is displayed.
Display the image using the 03 color. (Embodiment 3) FIGS. 6 and 7 show a processing procedure as an embodiment of a color selection management method of the present invention.
FIG. 6 shows the processing procedure of the priority setting processing, and FIG.
The procedure of the color selection management process is shown.

First, the procedure of the priority setting process of FIG. 6 will be described. In the priority setting process, a priority is set to the color data in the image color table 60201 (see FIG. 2) (step S30101). This setting work is performed by using a personal computer as shown in FIG.
In the state where the graphic of the image color table 60201 shown in FIG. 2 is displayed on the T screen, one INDEX is designated through the mouse or the keyboard, and the priority of the corresponding INDEX column is inputted through the board.

By the above processing, the priority is set for each of the color data in the image color table 60201. Next, a processing procedure of the color selection management processing of FIG. 7 will be described. The apparatus used is the apparatus shown in FIGS. When an image is displayed on the display means 30102, first, the display color table 60
105 is cleared (step S30201).

Subsequently, the color data not yet assigned to the display color table 60105 is included in all the image color tables 60103 corresponding to all the images currently displayed (including the image to be displayed now). It is checked whether or not there is any color data (step S30202). If there is no color data not allocated to the display color table 60105, the process is terminated. If there is color data not allocated to the display color table 60105, the process is terminated. Steps S30203 to S30205
The process up to is repeated.

In step S30203, it is checked whether or not the display color table 60105 is full. If the display color table 60105 is already full and cannot be assigned any more, the process is terminated. In step S30204, of the color data in all the image color tables 60103 corresponding to all the images displayed at that time (including the image to be displayed now), the color data is still allocated to the display color table 60105. And the color data with the highest priority is detected.

In step S30205, step S3
The display color table 60 stores the color data detected in
Assign to 105. By the above processing, all the image color tables 601 corresponding to all the images currently displayed (including the image to be displayed now)
03 are assigned to the display color table 60105 in descending order of priority.

Therefore, when displaying one image,
Even when the size of the image color table of the image is larger than the size of the display color table, the image can be displayed using the highest priority color data set, so that an image with better image quality is displayed. It becomes possible. Also, when displaying a plurality of images, the images can be displayed using the highest-priority color data set among the plurality of images, so that images with better image quality can be displayed. It becomes possible, and at the same time, it becomes possible to control (reduce, suppress, etc.) the technicolor.

FIG. 15 is a diagram showing an example of a color selection management process in the color selection management method according to the third embodiment of the present invention. FIG. 15A shows a data example of the first image color table 60103 corresponding to the first image (referred to as “image color table 1”), and FIG. 15B corresponds to the second image. Data examples of the second image color table 60103 (hereinafter, “image color table 2”) are shown. For simplicity, the sizes of the image color table 1 and the image color table 2 are both set to 4. The color data is indicated by a color name. The priority is indicated by an integer value, and the smaller the value, the higher the priority.

FIG. 15C shows a display color table 60.
The data example of FIG. 105 shows each stage of the color selection management process with time. For the sake of simplicity, the size of the display color table 60105 is 4. Hereinafter, an example of the color selection management process will be described with reference to FIG. Here, an example in which only the first image and the second image are simultaneously displayed on the display unit 60102 will be described.

The combination of displayed images changes,
When only the first image and the second image are displayed, first, the display color table 60105 is cleared in step S30201. (Step 1) Subsequently, in step S30202, it is checked whether or not there is color data that has not been assigned to the display color table 60105. Here, there is color data that has not been assigned.
The processing up to 0205 is repeated.

Next, it is checked in step S30203 whether or not the display color table 60105 is full. Here, since the display color table 60105 is not full, the process is continued as it is. Next, in step S30204, unassigned and highest-priority color data is detected. In this case, the priority of the color data “blue” in the image color table 1 is “1”, which is unassigned and has the highest priority, so this color data is detected.

Next, in step S30205, the detected color data “blue” in the image color table 1 is assigned to the display color table 60105. (Step 2) Hereinafter, one after another from S30203 to step S302.
05 are repeated, and the color data “red” (priority “2”) in the image color table 2 and the color data “orange” in the image color table 2 are arranged in descending order of priority.
(Priority “3”) and color data “yellow” (priority “3”) in the image color table 2 are sequentially detected and assigned to the display color table 60105. (Steps 3, 4, and 5 respectively) In the state of step 5, it is checked in step S30203 whether or not the display color table 60105 is full.

As a result, the image 1 and the image 2 are displayed using the display color table 60105 in the state of the stage 5. Display color table 601 in stage 5 state
In FIG. 05, among the color data used for the image 1 and the image 2, color data having a higher priority is distributed in a well-balanced manner (without shifting to one of the images). It can be seen that such effects as are obtained.

Also, when the present embodiment is used, the state of the display color table 60105 obtained with a small amount of calculation can be obtained without re-assigning the color data to the display color table 60105 many times. Recognize. Note that the correspondence between the pixel value data 60101 and the image color table 60103 is one-to-one, one-to-many,
Various correspondences such as many-to-one and many-to-many can be considered, but are omitted because they have no direct relation to the gist of the present invention.

The image color table 601 that could not be assigned to the display color table 60105
Regarding the handling of the color data in 03, various countermeasures such as displaying in the closest color or displaying with dithering can be considered, but are omitted because they are not directly related to the gist of the present invention. In the present embodiment, an example in which the priority is set for each color data has been described. However, in the present embodiment, the priority is set not for each color data but for each display color table 60105. If
Other embodiments can be implemented. In this case, in addition to the above-described effects, it is possible to control color selection in image units (for example, to display a specific image with high image quality). (Embodiment 4) FIGS. 8 and 9 are diagrams showing a processing procedure in still another embodiment of the present invention. FIG. 8 shows a processing procedure of a priority setting processing. The procedure of the color selection management process is shown.

Hereinafter, the processing procedure of the color selection management method will be described with reference to FIGS. 8, 9 and 1. First, the processing procedure of the priority setting processing of FIG. 8 will be described. As described in the third embodiment, the priority setting process is performed by displaying the graphic of the image color table on the CRT screen and operating the mouse and keyboard. That is, first,
The color data in the image color table 60103 is grouped (step S30301), and the priority is set to the color data group in the image color table 60103 (step S30302).

Grouping is performed by specifying the IND specified by the mouse or the like.
This is done by inputting a group number (integer value) with a keyboard or the like in the group column in the EX line. Also,
As described above, the priority is the same in the same group. Therefore, if one priority is input for each group, the priority is automatically added to all the INDEXs in the same group.

By the above processing, the color data in the image color table 60103 is grouped, and the priority is set for each of the color data groups. Next, a processing procedure of the color selection management processing of FIG. 9 will be described. When an image is displayed, first, the display color table 60105 is temporarily cleared (step S30401).

Subsequently, the color data not yet assigned to the display color table 60105 is included in all the image color tables 60103 corresponding to all the images displayed at that time (including the image to be displayed now). It is checked whether or not there is a group (step S3040).
2) If there is no color data group that has not been assigned to the display color table 60105, the process ends. If there is a color data group that has not been assigned to the display color table 60105, step S3 is performed.
The processing from 0403 to step S30407 is repeated.

In step S30403, it is checked whether or not the display color table 60105 is full. If the display color table 60105 is already full and cannot be assigned any more, the process is terminated. In step S30404, among the color data groups in all the image color tables 60103 corresponding to all the images currently displayed (including the image to be displayed), they are still assigned to the display color table 60105. And the group of the color data with the highest priority is detected.

In step S30405, step S3
It is determined whether the color data group detected in step 0404 can be assigned to the display color table 60105, and if it can be assigned, the process proceeds to step S304.
If the process of step 06 cannot be assigned, the process of step S30407 is performed. If the number of color data belonging to the detected color data group is larger than the number of color data that can be allocated to the display color table 60105 at that time, it is determined that allocation cannot be performed.

In step S30406, step S3
The group of color data detected in step 0404 is assigned to the display color table 60105. Step S30407
Then, the group of color data detected in step S30404 is excluded from targets to be detected as candidates to be assigned to the display color table 60105. Thereafter, this group of color data is referred to as steps S30402 and S3.
It is not a check target in 0404. For example, in step S30402, if only this color data group remains as an unassigned group, this color data group is not a check target.
It is determined that there are no unassigned groups, and the process ends.

By the above processing, the groups of the color data in all the image color tables 60103 corresponding to all the images currently displayed (including the image to be displayed now) are arranged in descending order of priority. , Are assigned to the display color table 60105. Therefore, when displaying one image, even if the size of the image color table of the image is larger than the size of the display color table, the image is displayed using the group of the color data group having the highest priority. Therefore, it is possible to display an image with better image quality.

Also, when a plurality of images are displayed, the images can be displayed using a group of color data groups having the highest priority among the plurality of images. Can be displayed, and
Control (reduction, suppression, etc.) of the technicolor effect can be performed. Furthermore, even when displaying one image,
Even when a plurality of images are displayed, color data that is preferably assigned together to the display color table 60105 can always be assigned to the display color table 60105 by grouping the color data, thereby improving image quality. And control of Technicolor effect (reduction,
Suppression etc.) can be further increased.

For example, it is assumed that a set of 16 color data, a set of 12 color data, and a set of 8 color data are prepared in the image color table 60103 in order to display an image. In this case, of course, the best image quality can be displayed when a set of 16 color data is used.
If only up to 15 color data sets out of 16 color data sets can be assigned to the display color table 60105, 12 color data sets are used rather than using the 15 color data sets. It is often the case that the display has better color balance and can be displayed with good image quality. In such a case, the group of 16 color data, the group of 12 color data, and the group of 8 color data are grouped, and the priority is the group of 16 color data, 12
By assigning priorities in the order of a group of eight color data and a group of eight color data and using the present invention, such a case can be dealt with, and the image quality can be improved and the technicolor control (reduction) can be achieved. , Suppression, etc.) can be further enhanced.

FIG. 16 is a diagram showing an example of the above color selection management process. FIG. 16A shows a data example of the first image color table 60103 corresponding to the first image (referred to as “image color table 1”), and FIG. 16B corresponds to the second image. Second image color table 60103
(Hereinafter referred to as “image color table 2”) are shown. Image color table 1 for simplicity
Is 4 and the size of the image color table 2 is 8
And The color data is indicated by a color name, and a group of color data is indicated by a rectangle in which a plurality of color data are surrounded by a thick frame line. The priority is indicated by an integer value, and the smaller the value, the higher the priority.

FIG. 16C shows a display color table 60.
The data example of FIG. 105 shows each stage of the color selection management process with time. For simplicity, the size of the display color table 60105 is set to 5, and a specific example of the color selection management process will be described below with reference to FIG. Here, an example in which only the first image and the second image are simultaneously displayed is shown.

The combination of displayed images changes,
When only the first image and the second image are displayed, first, the display color table 60105 is cleared in step S30401. (Step 1) Subsequently, in step S30402, it is checked whether there is any color data group that has not been assigned to the display color table 60105. Here, there is a color data group that has not been assigned.
03 to step S30407 are repeated.

Next, it is checked in step S30403 whether or not the display color table 60105 is full. Here, since the display color table 60105 is not full, the process is continued as it is. Next, in step S30404, a group of color data with the highest priority that has not been allocated is detected. In this case, the priority of the group including the color data “black” in the image color table 2 is “1”,
This color data group is detected because it has not been assigned and has the highest priority.

Next, in step S30405, it is checked whether or not a group consisting of the detected color data “black” in the image color table 2 can be assigned to the display color table 60105. Is performed, and a group consisting of the detected color data “black” in the image color table 2 is assigned to the display color table 60105. (Step 2) Next, similarly, the processing from step S30403 to step S30406 is performed to obtain the image color table 1
Group consisting of color data "white" (priority "2")
Is assigned to the display color table 60105. (Step 3) Next, similarly, the processing from step S30403 to step S30404 is performed to obtain the image color table 2
A group (priority “3”) consisting of the four color data “purple”, “orange”, “blue”, and “yellow” is detected. Is performed, and the detected color data group is not assigned to the display color table 60105, and is excluded from targets to be detected as candidates to be assigned to the display color table 60105 thereafter. (Step 4) Next, similarly, the processes from S30403 to S30406 are performed, whereby the image color table 2
A group (priority “4”) including the four color data “red”, “blue”, and “yellow” is assigned to the display color table 60105. (Step 5) In the state of step 5, if it is checked in step S30403 whether or not the display color table 60105 is full, the process is terminated because it is full.

As a result, the image 1 and the image 2 are displayed using the display color table 60105 in the state of the stage 5. Display color table 601 in stage 5 state
In FIG. 05, among the color data groups used for the image 1 and the image 2, the color data groups having higher priority are distributed in a well-balanced manner (without shifting to one of the images). It can be seen that effects such as reduction of the color and technicolor are obtained.

Further, when the present embodiment is used, the state of the display color table 60105 obtained with a small amount of calculation without re-assigning the group of the color data to the display color table 60105 many times is obtained. You can see that. Further, since the assignment is performed on a group basis, all the color data belonging to the group consisting of the four color data "purple", "orange", "blue", and "yellow" in the image color table 2 are assigned to the display color table 60105. If this is not possible, this color data "purple"
Three colors (color data “purple”, “orange”, “blue”) of the color data belonging to the group consisting of “orange”, “blue”, and “yellow” are not halfway assigned, and the next candidate image color Three color data in table 2 "red""blue""yellow"
Since all the color data (color data “red”, “blue”, “yellow”) belonging to the group consisting of are assigned, it can be seen that a better color distribution can be secured.

Note that the correspondence between the pixel value data 60101 and the image color table 60103 is one-to-one.
Various correspondences such as one-to-many, many-to-one, and many-to-many can be considered, but are omitted because they do not directly relate to the gist of the present invention. Regarding the handling of the color data groups in the image color table 60103 that could not be assigned to the display color table 60105, for example, various countermeasures such as displaying with the closest color or displaying with dithering are used. However, since it is not directly related to the gist of the present invention, the description is omitted.

Further, in this embodiment, an example has been described in which the priority is set for each color data group. In this embodiment, the priority is set not for each color data group but for the display color table 60105. If the setting is made for each case, another embodiment can be realized. In this case, in addition to the above-described effects, it is possible to control color selection in image units (for example, to display a specific image with high image quality). (Embodiment 5) FIG. 10 shows a procedure of a color selection management process as still another embodiment of the present invention.

Although not shown, the procedure of the priority setting process is the same as that shown in FIG. Hereinafter, the processing procedure of the color selection management processing according to the present embodiment will be described with reference to FIG.
This will be described with reference to FIG. When an image is displayed, each of the color data in the image color table 60103 corresponding to the image to be displayed is sequentially selected (step S30501) (step S30502).
Then, a series of processing from step S30503 to step S30507 is performed. In step S30502, the order of selection is arbitrary, but will be described later in step S3052.
Considering the efficiency of the processing of 30506 and step S30507, for example, it may be preferable to select in descending order of priority.

In step S30503, it is checked whether or not the display color table 60105 is full. If the display color table 60105 is not full yet and allocation can be performed, the processing in step S30504 is performed, and if the display color table 60105 is already full and no more allocation is possible. If the processing cannot be performed, the processing from step S30505 to step S30507 is performed.

In step S30504, step S3
The color data selected in step 0502 is displayed in the display color table 60.
105, and the process returns to step S30501. In step S30505, the display color table 60105
Of the color data assigned to the color data is detected. In step S30506, the priority of the color data selected in step S30502 is compared with the priority of the color data detected in step S30505. The processing is performed, and if the priority of the color data selected in step S30502 is lower, the process returns to step S30501 without doing anything.

In step S30507, in step S3
The color data selected in step 0502 is stored in step S30505.
And assigns it to the display color table 60105. With the above processing, when the display color table 60105 is full, among the color data already assigned to the display color table 60105, there is color data having a lower priority than the color data to be assigned later. In this case, the color data to be assigned later is replaced with the color data having a lower priority, and is assigned to the display color table 60105. As a result, all the image color tables 601 corresponding to all the images currently displayed are displayed.
03 are assigned to the display color table 60105 in descending order of priority.

Therefore, when displaying one image,
Even when the size of the image color table of the image is larger than the size of the display color table, the image can be displayed using the highest priority color data set, so that an image with better image quality is displayed. It becomes possible. Also, when displaying a plurality of images, the image can be displayed using the highest priority color data set among the plurality of images, so that an image with better image quality can be displayed. This makes it possible to control (reduce, suppress, etc.) the technicolor effect.

FIG. 17 is a diagram showing the status of the color selection management process according to the fifth embodiment. FIG. 17A shows an example of the data of the first image color table 60103 corresponding to the first image (referred to as “image color table 1”) in FIG.
FIG. 7B shows an example of data of the second image color table 60103 corresponding to the second image (hereinafter referred to as “image color table 2”). For simplicity, the size of the image color table 1 is 3, and the size of the image color table 2 is 4. The color data is indicated by a color name. The priority is indicated by an integer value, and the smaller the value, the higher the priority.

FIG. 17C shows the display color table 60.
The data example of FIG. 105 shows each stage of the color selection management process with time. For the sake of simplicity, the size of the display color table 60105 is assumed to be 4. Hereinafter, a specific example of the color selection management process will be described with reference to FIG. Here, an example is shown in which the second image is newly displayed while only the first image is displayed.

When only the first image is displayed, all the color data in the image color table 1 is assigned to the display color table 60105 as it is. (Step 1) When the second image is to be displayed, each of the color data in the image color table 2 is selected in descending order of priority (step S30501) (step S30502),
A series of processing from step S30503 to step S30507 is performed.

In step S 30502, first, the color data “red” (priority “2”) in the image color table 2 having the highest priority is selected. Subsequently, in step S30503, the display color table 601 is displayed.
It is checked whether 05 is full, but here it is not full yet, so you can make an assignment,
The processing of step S30504 is performed, and the detected color data “red” in the image color table 2 is assigned to the display color table 60105. (Step 2) In step S30502, next, the color data "orange" (priority "3") in the image color table 2 having the next highest priority is selected.

Next, in step S30503, it is checked whether or not the display color table 60105 is full. Here, since the display color table 60105 is already full and cannot be allocated any more, steps S30505 to S30505 are executed.
The processing up to 30507 is repeated. Next, step S3
By 0505, the color data with the lowest priority is detected from the color data allocated to the display color table 60105. In this case, the priority of the color data “light blue” in the image color table 1 is “4”, which is the lowest priority, so this color data is detected.

Next, in step S30506, the priority “3” of the color data “orange” in the image color table 2 selected in step S30502 and the step S3050
The color data “light blue” in the image color table 1 detected in 505 is compared with the priority “4”. Here, since the former has a higher priority, the process of step S30507 is performed, and the former is replaced with the latter and assigned to the display color table 60105. (Step 3) Next, the processing from S30501 to S30507 is performed in the same manner to thereby obtain the image color table 2
Is replaced with the color data “green” (priority “4”) in the image color table 1 and assigned to the display color table 60105.
(Step 4) Finally, similarly, from step S30501 to step S30505
By performing the above processing, the color data “dark blue” (priority “10”) in the image color table 2 is selected, and the color data “orange” (priority “3”) in the image color table 2 is detected. However, the former is not assigned to the display color table 60105 because the former is determined to have a lower priority by the comparison in step S30506. (Step 5) As a result, Image 1 and Image 2 are displayed using the display color table 60105 in the state of Step 5.

Display color table 601 in stage 5
In FIG. 05, among the color data used for the image 1 and the image 2, color data having a higher priority is distributed in a well-balanced manner (without shifting to one of the images). It can be seen that effects such as reduction are obtained. In addition, when the present embodiment is used, particularly, when some images are already displayed and another image is newly displayed, the display color table 601 is already displayed.
It can be seen that the state of the display color table 60105 to be obtained is obtained without re-assigning all the color data assigned in the area 05.

The correspondence between the pixel value data 60101 and the image color table 60103 is one-to-one.
Various correspondences such as one-to-many, many-to-one, and many-to-many can be considered, but are omitted because they do not directly relate to the gist of the present invention. Regarding the handling of the color data in the image color table 60103 that could not be assigned to the display color table 60105, various countermeasures such as displaying with the closest color or displaying with dithering are considered. However, they are omitted because they are not directly related to the gist of the present invention.

Further, in this embodiment, an example has been described in which the priority is set for each color data, but in this embodiment, the priority is set not for each color data but for each display color table 60105. By doing so, another embodiment can be realized. In this case, in addition to the above-described effects, it is possible to control color selection in image units (for example, to display a specific image with high image quality). (Embodiment 6) FIG. 11 is a diagram showing a processing procedure in a color selection management method according to a sixth embodiment of the present invention, and shows a processing procedure of the color selection management processing.

Although the procedure of the priority setting process is not shown, it is the same as that shown in FIG. Hereinafter, the procedure of the color selection management process according to the present embodiment will be described with reference to FIG.
This will be described with reference to FIG. When an image is displayed, each of the color data groups in the image color table 60103 corresponding to the image to be displayed is sequentially selected (step S30601) (step S30).
602) and then proceed from step S30603 to step S30.
A series of processing up to 607 is performed. Step S3060
In 2, the order of selection is arbitrary, but considering the efficiency of the processing of steps S30606 and S30607 described later, for example, it may be preferable to select in the order of priority.

In step S30603, it is checked whether or not the display color table 60105 is full. If the display color table 60105 is not full yet and allocation can be performed, the processing in step S30604 is performed, and if the display color table 60105 is already full and no more allocation is possible. If the processing cannot be performed, the processing from step S30605 to step S30607 is performed. However, if the number of color data belonging to the color data group selected in step S30602 is larger than the number of color data that can be assigned to the display color table 60105 at that time, the display color table 60
105 determines that it is already full and cannot be assigned any more.

In step S30604, step S3
The group of color data selected in step 0602 is assigned to the display color table 60105, and the flow returns to step S30601. In step S30605, one or more color data groups having the lowest priority among the color data groups allocated to the display color table 60105 are detected until the color data group selected in step S30602 can be allocated. I do. At this time,
When the assignment of one or a plurality of detected color data groups is released from the display color table 60105, the number of color data that can be assigned to the display color table 60105 belongs to the color data group selected in step S30602. If the number of color data is equal to or more than the number of color data, it is determined that assignment is possible.

In step S30606, step S3
The priority of the group of color data selected in step S602 is compared with the priority of the group with the highest priority among the group of one or more color data detected in step S30605, and the color data selected in step S30602 is compared. If the priority of the group is higher, step S30
The process in 607 is performed, and if the priority of the group of color data selected in step S30602 is lower, the process returns to step S30601 without doing anything.

In step S30607, step S3
The group of the color data selected in step 0602 is
The data is replaced with a group of one or a plurality of color data detected in 30605, and is assigned to the display color table 60105. When the display color table 60105 is full by the above processing, the color data to be allocated later is included in the group of color data (one or more) already allocated to the display color table 60105. If there is a group of color data (one or more) with a lower priority than the group, the group of color data that is to be assigned later is the color data (one or more) of the lower priority. Of the display color table 60
Assigned to 105. As a result, groups of color data in all the image color tables 60103 corresponding to all images displayed at that time are assigned to the display color table 60105 in descending order of priority.

Therefore, when displaying one image,
Even when the size of the image color table of the image is larger than the size of the display color table, the image can be displayed using the group of the color data group having the highest priority. It can be displayed. Also, when displaying a plurality of images, the images can be displayed using a group of color data groups having the highest priority among the plurality of images, so that images with better image quality are displayed. It becomes possible,
The control (reduction, suppression, etc.) of the technicolor can be performed.

[0146] Further, regardless of whether one image is displayed or a plurality of images are displayed, color data that is preferably assigned together to the display color table 60105 by grouping the color data is stored in the display color table 60105. Can be always assigned together, so that the image quality can be improved and the control (reduction, suppression, etc.) of the technicolor effect can be further enhanced.

For example, it is assumed that a set of 16 color data, a set of 12 color data, and a set of 8 color data are prepared in the image color table 60103 in order to display an image. In this case, of course, the best image quality can be displayed when a set of 16 color data is used.
If only up to 15 color data sets out of 16 color data sets can be assigned to the display color table 60105, 12 color data sets are used rather than using the 15 color data sets. It is often the case that the display has better color balance and can be displayed with good image quality. In such a case, the group of 16 color data, the group of 12 color data, and the group of 8 color data are grouped, and the priority is the group of 16 color data, 12
By assigning priorities in the order of a group of eight color data and a group of eight color data and using the present invention, such a case can be dealt with, and the improvement of image quality and control of the technicolor effect ( Reduction, suppression, etc.) can be further enhanced.

FIG. 18 is a diagram showing the status of the color selection management process in this embodiment. FIG. 18A shows a data example (hereinafter referred to as “image color table 1”) of the first image color table 60103 corresponding to the first image in FIG.
FIG. 8B shows an example of data of the second image color table 60103 corresponding to the second image (referred to as “image color table 2”). For simplicity, the size of the image color table 1 is 4 and the size of the image color table 2 is 8. The color data is indicated by a color name, and a group of color data is indicated by a rectangle in which a plurality of color data are surrounded by a thick frame line. The priority is indicated by an integer value, and the smaller the value, the higher the priority.

FIG. 18C shows the display color table 60.
The data example of FIG. 105 shows each stage of the color selection management process with time. For simplicity, the size of the display color table 60105 is assumed to be 5, and a specific example of the color selection management process will be described below with reference to FIG. Here, an example is shown in which the second image is newly displayed while only the first image is displayed.

When only the first image is displayed, all the color data in the image color table 1 is assigned to the display color table 60105 as it is. (Step 1) When the second image is to be displayed, each of the color data in the image color table 2 is selected in descending order of priority (step S30601) (step S30602),
A series of processing from step S30603 to step S30607 is performed.

In step S 30602, first, a group consisting of color data “black” (priority “1”) in the image color table 2 having the highest priority is selected. Subsequently, in step S30603, it is checked whether or not the display color table 60105 is full. Here, the display color table 60105 is not full, and the allocation can be performed. Color data "black" in 2
Are assigned to the display color table 60105. (Step 2) In step S30602, next, four color data “purple” in the image color table 2 with the next highest priority
A group consisting of “orange”, “blue”, and “yellow” (priority “3”) is selected.

Next, in step S30603, it is checked whether or not the display color table 60105 is full. Here, since the display color table 60105 is already full and cannot be assigned any more, the process proceeds from step S30605 to step S30605.
The processing up to 30607 is repeated. Next, step S3
According to 0605, one or more color data groups having the lowest priority among the color data groups allocated to the display color table 60105 are detected until the color data group selected in step S30602 can be allocated. You. In this case, a group of color data “gray” in the image color table 1 (priority “10”) and a group of two color data “green” and “light blue” in the image color table 1 (priority “5”) ),
Three groups of the group (priority "2") composed of the color data "white" in the image color table 1 are detected.

Next, in step S30606, the priority “3” of the group consisting of the four color data “purple”, “orange”, “blue”, and “yellow” in the image color table 2 selected in step S30602, and step S30605 Is compared with the priority "2" of the group consisting of the color data "white" in the image color table 1 which has the highest priority among the plurality of color data groups detected in step (1). Here, the former is not assigned to the display color table 60105 because the former has a lower priority. (Step 3) Finally,
Similarly, by performing the processing from S30601 to step S30605, 3
A group (priority “4”) including two color data “red”, “blue”, and “yellow” is selected, and a group (priority “10”) including color data “gray” in the image color table 1 is selected.
Two groups of the group (priority “5”) consisting of two color data “green” and “light blue” in the image color table 1 are detected, but the former priority is higher by the comparison in step S30606. Therefore, the process of step S30607 is performed, and the former is replaced with the latter and assigned to the display color table 60105. (Step 4) As a result, the image 1 and the image 2 are displayed using the display color table 60105 in the state of the step 4.

Display color table 601 in the state of stage 4
In FIG. 05, among the color data groups used for the image 1 and the image 2, the color data groups having higher priority are distributed in a well-balanced manner (without shifting to one of the images). It can be seen that the technicolor effect and the like have been reduced. In addition, when the present embodiment is used, particularly, when some images are already displayed and another image is displayed, a group of color data already allocated in the display color table 60105 is used. It can be understood that the state of the display color table 60105 to be obtained is obtained without re-assigning all of.

Further, since the assignment is made in groups, all the color data belonging to the group consisting of the four color data "purple", "orange", "blue" and "yellow" in the image color table 2 are displayed in the display color table. If the color data cannot be assigned to 60105, this color data "purple"
Without allocating a part of the color data belonging to the group consisting of “orange”, “blue”, and “yellow” halfway, three color data “red” and “blue” in the image color table 2 as the next candidate Since all the color data (color data "red", "blue", "yellow") belonging to the group consisting of "" and "yellow" are allocated, it can be seen that a better color distribution can be secured.

In the present embodiment, step S30
As a method for preventing the color data belonging to the color data group selected in 602 from overflowing the display color table 60105 and becoming unassignable, when the assignment is released from the display color table 60105, the display color table 60105 One color data group assigned to the display color table 60105 is assigned in the order of lower priority so that the number of color data that can be assigned is equal to or greater than the number of color data belonging to the color data group selected in step S30602. Alternatively, an example in which a plurality of color data are detected is shown, but instead of this method, when the allocation is released from the display color table 60105, the number of color data that can be allocated to the display color table 60105 is newly allocated. Glue of color data From the group of color data such that more than the number of color data belonging to the flop, can also be used a method of detecting a group of low color data with highest priority.

The correspondence between the pixel value data 60101 and the image color table 60103 is one-to-one.
Various correspondences such as one-to-many, many-to-one, and many-to-many can be considered, but are omitted because they do not directly relate to the gist of the present invention. Further, regarding the handling of the color data group in the image color table 60103 that could not be assigned to the display color table 60105, various methods such as displaying with the closest color or displaying with dithering are used. However, since it is not directly related to the gist of the present invention, the description is omitted.

Further, in this embodiment, an example has been described in which the priority is set for each group of color data. In this embodiment, the priority is set not for each group of color data but for the display color table 60105. If the setting is made for each case, another embodiment can be realized. In this case, in addition to the above-described effects, it is possible to control color selection in image units (for example, to display a specific image with high image quality). (Embodiment 7) FIGS. 12 and 13 show a processing procedure in a color selection management method as still another embodiment of the present invention. FIG. 12 shows a processing procedure of a priority setting processing. FIG. 13 shows the procedure of the color selection management process.

Hereinafter, a processing procedure of the color selection management method according to the eighth embodiment of the present invention will be described with reference to FIGS. 12, 13, and 1. First, the processing procedure of the priority setting processing of FIG. 12 will be described. In the priority setting process, first, a set of color data in the image color table 60103 is set (step S30701).
A set of color data in the image color table 60103 includes
The priority is set (step S30702).

Here, various specific examples of a set of color data, such as a set of arbitrary color data and a set of color data included in a range where the numerical value is represented numerically, are considered. Or any of them. In addition, a specific example of the priority setting process is similar to that shown in FIG. Specific means for managing sets and priorities can be realized in the same manner as the means described in the other embodiments using, for example, the example shown in FIG. 4, for example. Since it has no direct relation, it is omitted here.

Although FIG. 12 shows an example in which a set of color data is set in one image color table 60103, a set of color data may be set across a plurality of image color tables 60103. Good. Through the above processing, a set of color data in the image color table 60103 is set, and a priority is set for each of the set of color data.

Next, the processing procedure of the color selection management processing of FIG. 13 will be described. When an image is displayed, first, the display color table 60105 is temporarily cleared (step S30801). Subsequently, in all the image color tables 60103 corresponding to all images displayed at that time (including the image to be displayed now), a set of color data not yet assigned to the display color table 60105 includes It is determined whether or not there is any color data set (step S30802). If there is no set of color data not assigned to the display color table 60105, the process is terminated, and if there is any set of color data not assigned to the display color table 60105. In step S3
The processing from 0803 to step S30808 is repeated. In step S30803, it is checked whether or not the display color table 60105 is full. If the display color table 60105 is already full and cannot be assigned any more,
The process ends.

In step S30804, all the image color tables 6010 corresponding to all the images currently displayed (including the image to be displayed) are displayed.
Among the sets of color data in No. 3, a set of color data that has not been assigned to the display color table 60105 and has the highest priority is detected. Step S3080
In a series of processing from Step 5 to Step S30808, a set of color data detected in Step S30804 is assigned to the display color table 60105. More specifically, the display color table 601 sequentially stores the color data included in the set of color data detected in step S30804 one by one.
Assign to 05.

In step S30805, step S3
It is checked whether all the color data included in the set of color data detected in step 0804 has been assigned to the display color table 60105. If all assignments have been completed, the process returns to step S30802; otherwise, a series of processes from step S30805 to step S30808 is repeated.

In step S30806, it is checked whether or not the display color table 60105 is full. If the display color table 60105 is already full and cannot be assigned any more, the process is terminated. Display color table 60105
Is not full and the assignment can be performed, one color data included in the set of color data detected in step S30804 is selected (step S3080).
7) The selected color data is displayed in the display color table 60.
105 (step S30808).

By the above processing, the color data in all the image color tables 60103 corresponding to all the images displayed at that time (including the image to be displayed now) are displayed in descending order of priority. Assigned to the color table 60105. Therefore, when displaying one image, even if the size of the image color table of the image is larger than the size of the display color table, it is necessary to display the image using the highest priority color data set. Therefore, it is possible to display an image with better image quality.

Further, even when displaying a plurality of images, the images can be displayed using a set of color data having the highest priority among the plurality of images. And the control (reduction, suppression, etc.) of the technicolor effect can be performed. Another effect according to the present invention is that the above-mentioned effect can be realized without setting the priority for each color data, so that it is possible to reduce the trouble of setting the priority and the cost of the priority management. is there.

The correspondence between the pixel value data 60101 and the image color table 60103 is one-to-one.
Various correspondences such as one-to-many, many-to-one, and many-to-many can be considered, but are omitted because they do not directly relate to the gist of the present invention. Regarding the handling of the color data in the image color table 60103 that could not be assigned to the display color table 60105, various countermeasures such as displaying with the closest color or displaying with dithering are considered. However, they are omitted because they are not directly related to the gist of the present invention.

Further, in this embodiment, an example has been described in which the priority is set for each set of color data. However, in this embodiment, the set and display of a group of color data are not set for each set of color data. If the priority is set for each set of the color tables 60105 and the same processing as that of the embodiment in which the priorities are set for the groups of the color data and the display color tables 60105 described above is changed, other processing can be performed. Can be realized.

In this case, the effect of the above-described embodiment in which the priority is set for each color data group or each display color table 60105 can be realized without setting the priority for each color data. The work of setting the priority and the cost of managing the priority can be reduced. (Eighth Embodiment) FIG. 14 shows a processing procedure in a color selection management method according to still another embodiment of the present invention.

The processing procedure of the priority setting processing is not shown, but is the same as that shown in FIG. Hereinafter, a processing procedure of the color selection management method according to the present embodiment will be described with reference to FIGS. When an image is displayed, each color data in the image color table 60103 corresponding to the image to be displayed is sequentially selected (step S30901) (step S3090).
2) Then, from step S30903 to step S3090
A series of processing up to 7 is performed. In step S30902, the order of selection is arbitrary, but considering the efficiency of the processing in steps S30906 and S30907 described later, for example, it is preferable to select in order from the color data included in the set of color data with high priority. right.

In step S30903, it is checked whether or not the display color table 60105 is full. If the display color table 60105 is not full yet and the allocation can be performed, the process in step S30904 is performed, and if the display color table 60105 is already full and no more allocation is possible. If the processing cannot be performed, the processing from step S30905 to step S30907 is performed.

In step S30904, step S3
The color data selected in step 0902 is displayed in the display color table 60.
105, and the process returns to step S30901. In step S30905, the display color table 60105
Among the color data assigned to the color data, the color data included in the set of the lowest priority color data is detected.

In step S30906, step S3
The priority of the set of color data including the color data selected in step 0902 is compared with the priority of the set of color data including the color data detected in step S30905.
If the priority of the set of color data including the color data selected in step 902 is higher, the process in step S30907 is performed. If the priority of the set of color data including the color data selected in step S30902 is lower, The process returns to step S30901 without doing anything.

In step S30907, step S3
The color data selected in step 0902 is stored in step S30905.
And assigns it to the display color table 60105. According to the above processing, when the display color table 60105 is full, the color data already assigned to the display color table 60105 has a higher priority than the color data set including the color data to be assigned later. If there is color data included in the set of low-color data, the color data to be assigned later is replaced with the color data included in the set of low-priority color data, and the display color table 60105 Assigned to. As a result, the color data in all the image color tables 60103 corresponding to all the images displayed at that time are assigned to the display color table 60105 in descending order of priority.

Therefore, when displaying one image,
Even when the size of the image color table of the image is larger than the size of the display color table, the image can be displayed using the highest priority color data set, so that an image with better image quality is displayed. It becomes possible. Also, when displaying a plurality of images, the image can be displayed using the highest priority color data set among the plurality of images, so that an image with better image quality can be displayed. This makes it possible to control (reduce, suppress, etc.) the technicolor effect. Another effect according to the present invention is that the above-mentioned effect can be realized without setting the priority for each color data, so that it is possible to reduce the trouble of setting the priority and the cost of the priority management. is there.

Note that the correspondence between the pixel value data 60101 and the image color table 60103 is one-to-one.
Various correspondences such as one-to-many, many-to-one, and many-to-many can be considered, but are omitted because they do not directly relate to the gist of the present invention. Regarding the handling of the color data in the image color table 60103 that could not be assigned to the display color table 60105, various countermeasures such as displaying with the closest color or displaying with dithering are considered. However, they are omitted because they are not directly related to the gist of the present invention.

Further, in this embodiment, an example has been described in which the priority is set for each set of color data. However, in this embodiment, the set and display of a group of color data are not set for each set of color data. If the priority is set for each set of the color tables 60105 and the same processing as that of the embodiment in which the priorities are set for the groups of the color data and the display color tables 60105 described above is changed, other processing can be performed. Can be realized.

In this case, the effect of the above-described embodiment in which the priority is set for each color data group and each display color table 60105 can be realized without setting the priority for each color data. The work of setting the priority and the cost of managing the priority can be reduced. Embodiment 9 Hereinafter, still another embodiment of the present invention will be described with reference to the drawings.

FIG. 27 shows a personal computer system.
2. It includes well-known components such as a keyboard 103 and a mouse 104. Although the operating system is Microsoft Windows in the present embodiment, the present invention can be implemented on another operating system other than the above. FIG. 19 shows components of the computer main body 102, and includes a CPU 2011, a DRAM 201
02, an input device interface 20103 for connecting input devices such as a mouse 104 and a keyboard 103, a disk interface 20104, and a hard disk 2010.
5, a graphic controller 20106, a frame buffer 20107, and a video D / A converter 20108 for connecting the display 101. CPU1
05 constructs data for the frame buffer 20107 under the control of the window management program. Frame buffer 20107 stores the digital representation of the frame that display 101 is to display on the screen. Each pixel of the frame buffer 20107 is displayed in the display color table 20.
Supports an index to the color in 205. FIG. 20 shows a color table and data flow used in the present embodiment. The fixed color table 20201 holds a set of colors that are always assigned to the display color table 20205. The color table 20202 having a good color distribution is a table having 256 entries and colors distributed so that beautiful results can be obtained when performing color reduction processing on a general image. Image color table 1 to image color table M2
Reference numeral 0204 denotes a color table of an image to be actually displayed.
Each entry shows color data and a value indicating how frequently the color is used, and each pixel of the image data holds the index of this entry. The priority color table 20203 is a color table that holds priority color data selected from the image color tables 1 to M20204. The display color table 20205 has 256 entries.
And holds color data supported by each pixel of the frame buffer 20107. This display color table 20
The data represented by the combination of 205 and the frame buffer 20107 is actually displayed on the display 101 through the video D / A converter 20108. Each color table is stored in the hard disk 20105 or the DRAM 20102 in FIG. FIGS. 21, 22, and 23 show a flowchart of the process of the present embodiment. It is assumed in advance whether to select a frequently used color as a priority color or a common color as a priority color. It is also assumed that the maximum value N of the number of priority colors has been given. First, the steps of assigning a fixed color to the display color table and creating the priority color table 20203 from the image color tables 1 to M20204 will be described with reference to FIG. In step 20301, the colors in the fixed color color table 20201 are assigned to the display color table, and the flow advances to step 20302. In step 20302, it is determined whether a frequently used color is selected as a priority color or a common color is selected as a priority color. If a color that is frequently used is selected as a priority color, the process proceeds to step 20304. Step 2 when selecting a common color as a priority color
Proceed to 0303. In step 20303, the frequency of all entries in each color table of the image color table 1 to the image color table M20204 is set to 1. In step 20304, a new color table B is created, and image color tables 1 to M20 are created.
The set of the color data and the frequency, which are the values of each entry 204, is copied to the color table B. At this time, if the same color exists, a value obtained by summing the frequencies is set as the frequency. In step 20305, it is determined whether a frequently used color is selected as a priority color or a common color is selected as a priority color. The process proceeds to step 20307 if a frequently used color is selected as a priority color, and proceeds to step 20306 if a common color is selected as a priority color. Step 2030
In step 6, entries in the color table B other than those whose frequency is the number M of the image color tables are deleted. In step 20307, the color table B is rearranged in descending order of frequency. Thereafter, the process proceeds to step 20308.
In step 20308, when the maximum number of priority colors is N,
The color table B is copied in descending order of the frequency of the entries in the color table B so that only the N colors from the top are arranged in the descending order of the frequency of the color table 20203.

Next, the step of assigning a priority color to the display color table 20205 will be described with reference to FIG.
In step 20401, the display color table 2020 is displayed.
Are there entries left in entry 5? If yes, step 20
Proceed to 402. If not, the process ends. Step 2
At 0402, one color not yet selected is preferentially selected from the priority color table 20203. Subsequently, in step 20403, if the color selected in step 20402 is in the fixed color table, step 204
Go to 05. Otherwise, the process proceeds to step 20404, where the color selected in step 20402 is assigned to the display color table 20205. In step 20405, it is determined whether or not the color table 20203 of all priority colors has been selected in step 20402.
And repeat the process again. If selected, the process proceeds to step 20501.

Next, along with FIG. 23, there is shown a step of obtaining colors to be assigned to the remaining entries of the display color table 20205 so as to improve the color distribution of the display color table 20205, and assigning them to the display color table 20205. In step 20501, a color table 20202 having a good color distribution is prepared. Then, step 2
In step 0502, a color not yet selected in the display color table 20205 is selected. In step 20503, the entry of the color closest to the color selected in step 20502 in the color table 20202 having a good color distribution is deleted. The process advances to step 20504 to determine whether all colors in the display color table 20205 have been selected. If not, the process returns to step 20502 to repeat the processing. Step 20 if selected
Proceed to 505. In step 20505, the colors remaining in the color table 20202 having a good color distribution are assigned to the display color table 20205. After step 20505, the process ends. Through the above processing, a color set having a good color distribution can be assigned to the display color table 20205.

As described above, based on the present embodiment,
Although described, various changes may be made in the details without departing from the spirit and scope of the invention. In the present embodiment, the color to be assigned to the remaining entries in the step of obtaining the color to be assigned to the remaining entries of the display color table 20205 so as to improve the color distribution of the display color table 20205 is determined by using a table prepared in advance. Display color table 20205
May be calculated at the time of execution so as to improve the color distribution.

(Embodiment 10) Hereinafter, still another embodiment of the color selection management method of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. (1) In step 60301, color data is acquired from the image color table 60201 (see FIG. 3).

At this time, the priority of the color data includes the frequency of use, the current number of uses, the number of uses, the time of use, the priority of the window used, the priority given to the color characteristics, the priority given to the color luminance, Priority given to color density, priority given to color freshness, priority given to color saturation,
Alternatively, one of the priorities assigned to the color gradation is indicated.

In the case where the priority is the current number of uses, a counter may be provided to update the number of uses. Similarly, when the priority is the number of uses, it may be managed by a counter. (2) In decision block 60302, step 60
It is checked whether the color data acquired in step 301 has a higher priority.

That is, whether the frequency of use is high, the current number of uses is large, the number of uses is long, the time of use is long, the priority of the used window is high, the color characteristics , Whether the color is high, the color density is high, the color is fresh,
It is checked whether the color saturation is high or the priority given to the color gradation is high.

If the color has a higher priority, in step 60303 the display color table 602 is displayed.
Register at 03. (3) At decision block 60304, it is checked whether registration has been completed. If completed, step 603
At 05, an image is displayed using the colors of the display color table 60203. Embodiment 11 Hereinafter, still another embodiment of the color selection management method of the present invention will be described.

FIG. 24 is a flowchart showing a method of selecting a color as one embodiment of the color selection management method of the present invention. Hereinafter, a method of selecting a color according to the present embodiment will be described with reference to FIGS. (1) In step 60601, color data is acquired from the image color table 60201.

(2) In the judgment block 60602,
It is checked whether or not the color of the color data acquired in step 60601 is close. The close color is represented by (0, 0, 0), (0, 1, 0), (1, 0,
0), (0, 0, 1), and colors in the image color table 60601 that are close to each other.

(3) In the judgment block 60602,
If the colors are close, it is checked in step 60603 whether the priority is high. If the color has a higher priority, the color is registered in the display color table 60203 in step 60604. (4) In decision block 60605, it is checked whether registration has been completed. If completed, step 606
At 06, an image is displayed using the colors of the display color table 60203.

(Embodiment 12) Hereinafter, still another embodiment of the color selection management method of the present invention will be described. FIG. 25 is a diagram showing a flow of color data generated in the present embodiment. In FIG. 25, reference numeral 60701 denotes an image color table for storing color data. 60702
Is a color management step for managing color data. 6
Reference numeral 0703 denotes a display color table for storing display colors.

The flow of the color data generated in the present embodiment will be described below with reference to FIGS. (1) The image color table 60701 includes, as color data information, an INDEX value indicating the pixel value data 60101,
Stores RGB values indicating the degrees of red, green, and blue colors, and the like. This color data information is obtained by image data or instructions from a user or an application program.

(2) Color management step 60702
The RGB values in the image color table 60701 are checked, colors are selected in order from the farthest color, and the RGB values are registered in the display color table 60703. (3) When the registration is completed, the display color table 6070
The image of the pixel value data 60101 is displayed on the display unit 60102 using the three colors.

FIG. 26 is a flowchart showing a method for selecting a color according to the present embodiment. Less than,
A method of selecting a color according to the present embodiment will be described with reference to FIGS. (1) In step 60801, color data is acquired from the image color table 60701.

(2) In the judgment block 60802,
It is checked whether the color of the color data acquired in step 60801 is a far color. If the color was far,
In step 60803, the display color table 60
Register in 703. There are various criteria for determining whether the color is distant. For example, it is possible to determine whether a color is far from the RGB value of a color already stored in the image color table, or to determine whether the color is far from the color based on a basic color. This embodiment includes both. Specific examples of the former distant color and the latter basic color are shown below.

That is, far colors are represented by RGB values (0, 0, 0), (255, 255, 255),
(255, 0, 0), (0, 255, 0), (0, 0,
255), (128, 128, 128)
The color in the image color table 60701 is the color that is the farthest between colors. Further, the basic colors are represented by black (0, 0, 0) and white (25
5, 255, 255), red (255, 0, 0), green (0, 255, 0), blue (0, 0, 255), yellow (25
5, 255, 0), magenta (255, 0, 255),
Cyan (0, 255, 255), gray (128, 12
8, 128).

(3) In the judgment block 60804,
Check if registration has been completed. If the processing has been completed, in step 60805, the display color table 607 is displayed.
Display the image using the 03 color. Embodiment 13 Hereinafter, still another embodiment of the color selection management method of the present invention will be described with reference to the drawings.

FIG. 27 is a diagram showing the configuration of a computer. 101 is a display, 102 is a computer main body, 103 is a keyboard, and 104 is a mouse. FIG. 28 is a configuration diagram focusing on specific hardware of the present embodiment. 105 is a CPU, 106 is a storage unit (DRAM) that can be freely read and written, 108 is an input device interface, 109 is an input device, 110 is a disk interface, 111 is a hard disk, 112 is a graphic controller, and 113 is screen data to be displayed on a display. Storage unit (VRAM) 114 is a video D /
A converter. FIG. 29 is a diagram showing the flow of color data in the present embodiment. 115 is the first image, 116
Is a first image color table that stores colors used in the first image, 117 is a second image, 118 is a second image color table that stores colors used in the second image, 119 is a display color table, and 101 is a display.

In the present embodiment, a description will be given assuming that the present invention is implemented on Windows in the 256-color mode. The method of the present embodiment is implemented as an application program on Windows, stored in the hard disk 111, and
It is loaded into the AM 106 and executed on the CPU 105.
Image data displayed on the screen by the application program is transmitted to the VRA via the graphic controller 112.
It is stored in M113. V / D converter 114 for video
The screen data stored in the RAM 113 is converted into an analog signal using the RGB values stored in the display color table 119 and displayed on the display 101.

In Windows, 20 basic colors are defined in advance as colors used by window frames and the like. In the application according to the present embodiment, it is assumed that a total of 196 colors, i.e., 7 gradations for red, 7 gradations for green, and 4 gradations for blue, are assigned in advance as application-defined colors. Therefore, the colors that can be set for each image as custom colors are 40 colors obtained by subtracting 20 basic colors and 196 application-defined colors from 256 colors.

The first image 115 and the second image 117 shown in FIG. 29 each define 30 custom colors. In the first image color table 116 and the second image color table 118, a value of 1 indicating that the color of each index is used in the image or 0 indicating that the color of each index is not used in the image is set as FLAG. Have been. This indicates that the technicolor effect does not occur regardless of how many colors are set in the display color table 119 for an index of FLAG 0 when an image is displayed. Conversely, when an image is displayed, FL
Display color table 1 for index with AG = 1
When a value different from the RGB value of the image color table is set in 19, it indicates that the technicolor effect is generated. In the first image color table 116, each RGB
In the values, indices 0 to 19 indicate basic colors, indices 20 to 215 indicate application-defined colors, indices 216 to 245 indicate custom colors defined in the first image, and indices 246 to 255. Is not used in the first image. In the second image color table 118, each RGB
In the values, indices 0 to 19 indicate basic colors, indices 20 to 215 indicate application-defined colors, indices 226 to 255 indicate custom colors defined in the second image, and indices 216 to 225. Is not used.

Next, the operation of the color selection management method will be described with reference to the flowchart of FIG. First, display 1
Assume that the first image 115 is displayed at 01. At this time, the first image color table 116 is assigned to the display color table 119. The input from the input device 109 such as the keyboard 103 or the mouse 104 by the user triggers the display 10
Processing for displaying the second image 117 on the first image is started.

The step of detecting whether or not color replacement occurs for the number of colors that can be displayed on the screen is repeated. Step 12
At 0, a variable indicating a color index is initialized to 0. In step 121, the value of the variable indicating the color index is compared with the number of colors that can be displayed on the screen. If the value of the variable indicating the color index is smaller than the number of colors that can be displayed on the screen, step 122 is processed. In step 122, "the value of FLAG indicated by the variable of the first image color table 116 is 0" or "the value of FLAG indicated by the variable of the second image color table 118 is 0" or "First image color table 1
The RGB values indicated by the 16 variables and the RGB values indicated by the variables of the second image color table 118 are equal. Is determined, and if true, the value of the variable is increased by 1 and the process returns to step 121. If false in step 122, color replacement occurs, so the technicolor generation warning step 124 is processed. In the technicolor warning step 124, a message indicating that a technicolor is generated is displayed on the display 101. After the processing of the technicolor warning step 124, or when the value of the variable indicating the color index becomes equal to or larger than the number of colors that can be displayed on the screen, the display color table 119 is displayed.
Is replaced with the second image color table 118 in step 125. Next, step 126 of displaying the second image 117 on the display 101 is processed.

More specifically, referring to the data shown in FIG. 29, when the value of the index indicated by the variable is 226, the condition determination in step 122 becomes false, and a technicolor generation warning step 124 indicates that a technicolor is generated on the display 101. Display a message. At the moment when the contents of the display color table 119 are replaced with the second image color table 118, the displayed first image 1
The RGB value “25” indicated by the index 226 of 15
5, 148, 0 "is replaced with" 0, 148, 255 ", and a technicolor is generated.

As described above, the step of detecting whether or not the color replacement occurs is performed by using the first image 115 to the second image 1
At the time of switching the screen display to step 17, it is detected whether or not the color replacement occurs. Can be detected.

Although the FLAG indicating that the color of the index is used in the image is used in the present embodiment, it may be checked whether the color is used in the image each time. Alternatively, the basic colors and the application-defined colors may be managed in different color tables, and only the custom colors may be set in each image color table. In the present embodiment, the application has been described in which the application defines 196 application-defined colors in advance. However, without defining the application-defined colors, 236 colors other than the basic colors may be defined as areas where custom colors can be defined. Good.

Furthermore, in the present embodiment, Windows
Although the present invention is implemented on a computer, the present invention may be implemented on another computer. Needless to say, another device may be added to the hardware configuration or replaced with another device having an equivalent function. Also, in the present embodiment, the description has been made in the form of being stored on a hard disk. Needless to say, this may be implemented.

Embodiment 14 Hereinafter, still another embodiment of the color selection management method of the present invention will be described with reference to the drawings. The configuration of the computer is similar to that of the thirteenth embodiment.
Since FIG. 27 is similar to FIG. The configuration of this embodiment focusing on the specific hardware is the same as that of the thirteenth embodiment, and therefore FIG. 28 is used. FIG. 31 is a diagram showing a flow of color data of a third image displayed between the first image and the second image. The first image 115, the first image color table 116, the second image 117, and the second image color table 118 are the same as those shown in FIG. 127 is the third image, 12
8 is a third image color table storing colors used in the third image, 119 is a display color table, 10 is
1 is a display.

In the present embodiment, a description will be given assuming that the present invention is implemented on Windows of 256 color mode. The method of the present embodiment is implemented as an application program on Windows, stored in the hard disk 111, and
It is loaded into the AM 106 and executed on the CPU 105.
Image data displayed on the screen by the application program is transmitted to the VRA via the graphic controller 112.
It is stored in M113. V / D converter 114 for video
The screen data stored in the RAM 113 is converted into an analog signal using the RGB values stored in the display color table 119 and displayed on the display 101.

In Windows, 20 basic colors are defined in advance as colors used by window frames and the like. Further, in the application according to the present embodiment, it is assumed that a total of 196 colors, that is, 7 gradations for red, 7 gradations for green, and 4 gradations for blue are assigned in advance as application-defined colors. Therefore, the color that can be set for each image as a custom color is
From 256 colors, 20 basic colors and 19 application-defined colors
It is 40 colors minus 6 colors.

The third image 127 shown in FIG. 31 does not define a custom color. In the third image color table 128, a value of 1 indicating that the color of each index is used in the image or 0 indicating that the color of each index is not used in the image is set as FLAG. This is the same as FLAG described in the thirteenth embodiment with reference to FIG. Each R in the third image color table 128
Regarding the GB values, indexes 0 to 19 indicate basic colors, indexes 20 to 215 indicate application-defined colors, and indexes 216 to 255 are not used in the third image.

Next, the operation of the color selection management method will be described with reference to the flowchart of FIG. First, display 1
Assume that the first image 115 is displayed at 01. At this time, the first image color table 116 is assigned to the display color table 119. The input from the input device 109 such as the keyboard 103 or the mouse 104 by the user triggers the display 10
Processing for displaying the second image 117 on the first image is started.

The step of detecting whether or not color replacement occurs for the number of colors that can be displayed on the screen is repeated. Step 13
At 0, a variable indicating a color index is initialized to 0. In step 131, the value of the variable indicating the color index is compared with the number of colors that can be displayed on the screen. If the value of the variable indicating the color index is smaller than the number of colors that can be displayed on the screen, step 132 is processed. In step 132, "the value of the FLAG indicated by the variable of the first image color table 116 is 0" or "the value of the FLAG indicated by the variable of the second image color table 118 is 0" or "First image color table 1
The RGB values indicated by the 16 variables and the RGB values indicated by the variables of the second image color table 118 are equal. Is determined, and if true, the value of the variable is increased by 1 and the process returns to step 131. If false in step 132, color replacement occurs, so the third image creation step 134 is processed. In the third image creation step 134, first, a third image color table 128 including 20 basic colors and 196 application-defined colors is created. Next, a third image 127 in which the first image 115 is reduced to the color used in the third image color table 128 is created. At this time, a method of performing color reduction uses a general color reduction algorithm. As an algorithm for color reduction, dither is generally known, and it is assumed here that the first image 115 is reduced to a third image 127 using dither. In the third image display step, the third image 127 is displayed on the display 101. After the third image display step 135, or when the value of the variable indicating the color index is equal to or larger than the number of colors that can be displayed on the screen, the display color table 119 is displayed.
136 is replaced with the second image color table 118. Next, step 137 of displaying the second image 117 on the display 101 is processed.

More specifically, referring to the data shown in FIGS. 29 and 31, when the value of the index indicated by the variable is 226, the condition determination in step 132 becomes false, and the third image creation step 134 and the third image The display step 135 is processed, and the third image 127 is displayed on the display 101. Then, the display color table 1
At the moment when the content of the image data 19 is replaced with the second image color table 118, the RGB value “2” indicated by the index 226 is set.
55, 148, 0 "is replaced with" 0, 148, 255 ", but no technicolor is generated in the third image 127 because the color indicated by this index is not used. Image 117 is display 10
1 is displayed. Also at this time, the contents of the display color table have already been replaced with the second image color table 118, and no technicolor is generated.

As described above, the step of detecting whether or not the color replacement occurs is performed by using the first image 115 to the second image 1
At the time of switching the screen display to step 17, it is detected whether or not color replacement occurs. If color replacement occurs, a third image in which color replacement does not occur is created, and By replacing the contents of the color table while displaying,
The screen display can be switched without generating a technicolor.

Although dither is used as the color reduction algorithm in the present embodiment, another algorithm may be used. Further, in the present embodiment, an image in which the color of the first image 115 is reduced is created as the third image 127. However, an image in which the color of the second image 117 is reduced may be created. Image and second image 11
7 may be created and displayed in order, or the number of colors may be reduced between an image in which the first image 115 has been reduced in color and an image in which the second image 117 has been reduced in color. The sequentially increased images may be displayed in order to obtain an effect of fading out and fading in.

Further, in the present embodiment, the third image color table is composed of 20 basic colors and 196 application-defined colors, but a custom color may be set. When the custom color is set, “the FLAG value indicated by the variable of the first image color table 116 is 0” or “the FLAG value indicated by the variable of the second image color table 118 is 0” Or "the RGB values indicated by the variables of the first image color table 116 and the RGB values indicated by the variables of the second image color table 118"
B values are equal. "Is set as a custom color for which the condition judgment is true. At this time, the RGB values indicated by the custom colors in the third image color table are replaced with the display table 119 before the third image is displayed.

Further, in the present embodiment, FLAG indicating that the color of the index is used in the image is used. Alternatively, the basic colors and the application-defined colors may be managed in different color tables, and only the custom colors may be set in each image color table. In the present embodiment, the application has been described in which the application defines 196 application-defined colors in advance. However, without defining the application-defined colors, 236 colors other than the basic colors may be defined as areas where custom colors can be defined. Good.

Further, in the present embodiment, Windows
Although the present invention is implemented on a computer, the present invention may be implemented on another computer. Needless to say, another device may be added to the hardware configuration or replaced with another device having an equivalent function. Also, in the fifteenth embodiment, the description has been made in the form of being stored on a hard disk. It goes without saying that it may be easily implemented.

Embodiment 15 Hereinafter, still another embodiment of the present invention will be described with reference to the drawings.
Since the configuration of the computer of this embodiment is the same as that of the embodiment, FIG. 27 is used. Since the configuration of this embodiment focusing on specific hardware is the same as that of the thirteenth embodiment, FIG. 28 is used. The first image 115, the first image color table 116, the second image 117, and the second image color table 118 are the same as those shown in FIG. 127 is a third image, 128 is a third image color table for storing colors used in the third image, 119 is a display color table, and 101 is a display.

In the present embodiment, the description will be made assuming that the present invention is implemented on Windows of 256 color mode. The method according to the sixteenth embodiment is implemented as an application program on Windows,
1, loaded into the DRAM 106 via the disk interface 110, and executed on the CPU 105. Image data displayed on the screen by the application program is transmitted to the V through the graphic controller 112.
It is stored in the RAM 113. Video D / A converter 114
Converts the screen data stored in the VRAM 113 into analog signals using the RGB values stored in the display color table 119 and displays the analog signals on the display 101.

In Windows, 20 basic colors are defined in advance as colors used by window frames and the like. Further, in the application according to the present embodiment, it is assumed that a total of 196 colors, that is, 7 gradations for red, 7 gradations for green, and 4 gradations for blue are assigned in advance as application-defined colors. Therefore, the color that can be set for each image as a custom color is
From 256 colors, 20 basic colors and 19 application-defined colors
It is 40 colors minus 6 colors.

The data flow of this embodiment is the same as that of the first embodiment.
Since FIG. 29 is the same as FIG. 3, FIG. In the specific data flow of this embodiment, the first image 115 and the second image 117 each define 30 custom colors. In the first image color table 116 and the second image color table 118, a value of 1 indicating that the color of each index is used in the image or 0 indicating that the color of each index is not used in the image is set as FLAG. Have been. When an image is displayed, no color is set in the display color table 119 for an index with FLAG of 0, and no technicolor is generated. Conversely, when an image is displayed, FLAG
Is the display color table 119 for the index of 1
Indicates that a technicolor is generated when a value different from the RGB value of the image color table is set. In the first image color table 116, for each RGB value, indexes 0 to 19 indicate basic colors, indexes 20 to 215 indicate application-defined colors,
Indexes 216 to 245 indicate custom colors defined in the first image, and index 246
To 255 are not used in the first image. In the second image color table 118, for each RGB value, indexes 0 to 19 indicate basic colors, indexes 20 to 215 indicate application-defined colors, and indexes 226 to 255 are defined in the second image. Index 216 to 225 are not used.

Next, the operation of the color selection management method will be described with reference to the flowchart of FIG. First, the display 10
It is assumed that the first image 115 is displayed on the first image 115. At this time, the first image color table 116 is assigned to the display color table 119. Then, the input device 1 such as the keyboard 103 or the mouse 104 by the user.
09 from the display 101
Then, the process of displaying the second image 117 is started.

The step of detecting whether or not color replacement occurs for the number of colors that can be displayed on the screen is repeated. Step 71
At 0, a variable indicating a color index is initialized to 0. In step 711, the value of the variable indicating the color index is compared with the number of colors that can be displayed on the screen. If the value of the variable indicating the color index is smaller than the number of colors that can be displayed on the screen, step 712 is processed. In step 712, "the value of FLAG indicated by the variable of the first image color table 116 is 0" or "the value of FLAG indicated by the variable of the second image color table 118 is 0" or "First image color table 1
The RGB values indicated by the 16 variables and the RGB values indicated by the variables of the second image color table 118 are equal. Is determined, and if true, the value of the variable is incremented by 1 and the process returns to step 711. If false in step 712, the third image display step 714 is processed because color replacement occurs,
The first image 1 is displayed on the display 101 as a third image.
15 is displayed. In step 715, every time step 715 is executed, the contents of the display color table 119 are replaced with the contents of the second image color table 118 one or more times by one or more. Image color table 118
Is performed. In step 716, the change speed of the display color table 119 is set by waiting for time. In step 717, if the entries of the second image color table 118 and the display color table 119 match, the operation of step 718 is performed, and the second image color table 118 and the display color table 1
If the contents of 19 do not match, the process returns to step 714 to form a loop. In step 718, a second image is displayed. In step 719, the contents of the display color table are replaced with the second color table.

As described above, the step of detecting whether or not the color replacement occurs is performed based on the first image 115 to the second image 1
At the time of switching the screen display to step 17, it is detected whether or not the color replacement occurs. If the color replacement occurs, the third image is displayed and the color table is gradually changed. The occurrence of technicolor can be made inconspicuous.

Step 715 of the fifteenth embodiment
Then, every time step 715 is executed, the display color table 1
The contents of the 19 entries are replaced with the contents of the second image color table 118 one or more at a time, but every time step 715 is executed, one, a plurality, or all of the display color tables 119 are changed. For the entry, the value of each entry is made to match the value of the corresponding entry of the second image color table 118 with each entry of the display color table 119 and the second image color table 118 after a predetermined number of steps have been performed. You may implement so that it may operate so that it may approach.

Further, the contents of the entry of the display color table 119 are replaced with the contents of the second image color table 118 one or more at every execution of the step 715. The value of each entry is changed arbitrarily for one, a plurality, or all of the entries to be changed in the table 119, and the value of the corresponding entry of the second image color table 118 is changed after a predetermined number of steps. Each entry of the display color table 119 may be matched with the second image color table 118.

Although the first image is used as the third image in step 714, the second image may be used instead of the first image.
Step 14 uses the first image as the third image,
In the middle of the loop of steps up to 16, the first image used as the third image may be switched to the second image instead of the first image.

Further, the step 716 may be carried out so as to move between the steps 712 and 714, between the steps 714 and 715, or between the steps 717 and 714. . Although FLAG indicating that the color of the index is used in the image is used, it may be checked whether the color is used in the image each time. Alternatively, the basic colors and the application-defined colors may be managed in different color tables, and only the custom colors may be set in each image color table.

In addition, although not repeated, it goes without saying that the possibility of various modifications described in the preface of the previous embodiment also applies to the present embodiment. (Embodiment 16) FIG. 34 is a block diagram showing still another embodiment of the present invention.
002 is pixel value data, 40003 is an image color table, 40004 is display color table management means, 400
05 is a display color table, 40006 is a display means, 4
0007 is a display information management unit, 40008 is an image color table management unit, 40009 is a warning notification unit, 400
Reference numeral 10 denotes an assignment information notifying unit.

[0233] From the input unit 40001, information on an image to be displayed and information on a display are input. Information input from the input unit 40001 is sent to the display information management unit 40007, and the display information management unit 40007
Information necessary for display is selected from the image color table 40003 corresponding to the image to be displayed from the image color table 40003 via the image color table management means, and is sent to the display color table management means 40004.
Reference numeral 04 denotes a display unit 4000 which reflects the entry of the image color table sent from the image color table 40003 in the display color table 40005 and combines it with the pixel value data selected by the display information management unit.
6 is displayed. The above is the basic operation of the present embodiment.

FIG. 35 shows a flowchart of the main program in the present embodiment. First, attention is paid to the display mode stored in the display information management unit. The modes include a straight mode, a random mode, and a tree mode. FIG. 39 shows an example of each mode. (A) shows a straight mode. The arrow in the figure is
The transition of the display image is shown. In this drawing, the image A is displayed first, the image B is displayed next, and the image C is displayed last. (B) shows a random mode. As shown in the figure, the transition of the display image is random, and it is a mode in which it is impossible to specify which image is displayed immediately before or which image is displayed immediately after. (C) shows a tree mode. Compared to the random mode, the tree mode has additional conditions that an image displayed once is never displayed and that the image displayed immediately before is limited to one. This is an example of the display mode. FIG. 40 shows a data structure for storing information on image transitions, and a specific example of data. (A) is an example of a data structure, (B) is a specific example of data. Image 1
Is displayed immediately after image 2, image 5, or image 6, and image 1
Means that image 3 is displayed immediately after. FIG. 41 shows an example of an entry assigned so that the technicolor phenomenon does not occur. The common area indicates an area in which each entry is equal in both the image color table A and the image color table B. As shown in the figure, the assigned areas of the image color table A and the image color table B are assigned so as not to overlap, and the assigned areas of each other are set as unused areas of the user, thereby forming the display color table. And the image color table A,
And all the entries used in the image color table B can be allocated. By using this display color table, an image A displayed based on the image color table A and a display based on the image color table B are displayed. When the displayed image B is switched, an unpleasant color conversion phenomenon, a so-called technicolor phenomenon, can be prevented. Further, FIG. 42 shows an example of a specific assignment status in the image color table of the three images A, B, and C. In the figure, entries 0 to 240 are assigned as common areas, entries 241 to 245 are assigned for image A, entries 246 to 250 are assigned for image B, and entries 251 to 255 are assigned for image C. This is an example.

It is determined whether the display mode stored in the display information management means is the straight mode (S40).
101) If the mode is the straight mode, the process in the straight mode (S40102) is performed; if the mode is the random mode (S40103), the process in the random mode (S40104) is performed; if the mode is the tree mode (S4104).
0105) Processing in Tree Mode (S40106)
I do.

FIG. 36 shows a flowchart of the processing in the straight mode. First, it is determined whether or not an image is added (S40201). If it is added, it is checked whether there is an image to be displayed immediately before (S40202). If there is no image to be displayed immediately before, the image color table management unit 40008 assigns a half of the assignable area to the corresponding image color table in the image color table 40003 as an entry that can be used freely (S40203). If there is an image that is displayed in a straight line, the image color table 40008 indicates that the corresponding image color table in the image color table 40003 has an allocatable area that is not allocated to the image color table of the image displayed immediately before. Is allocated as an entry that can be used freely (S4020)
4). Next, it is checked whether or not the target image is at the end (S40205). Here, the end means that there is no image to be displayed next. If it is the end, the additional processing ends. If it is not the end, the image color table management means 40008 adds the main image to the image color table 40003, and the allocated area is displayed in the image color table and the entry of the image displayed immediately before. After re-assignment is performed so that duplicate entries do not occur (S40206), the addition process ends.

Next, the flow of a process for deleting an image will be described. First, the corresponding image color table is deleted (S40208). When the image color table is deleted, the corresponding pixel value data of the pixel value data 40002 is also automatically deleted. Next, it is determined whether or not the corresponding image is at the end (S40209). If the image is at the end, the deletion process is terminated. If it is not the end, it is checked whether or not there is an image to be displayed immediately before (S40210). If there is no image, the deletion process is terminated. If there is an image to be displayed immediately before, the image color table management unit 40008 controls the image color table management means 40008 so that the entries of all the images after the image displayed immediately after do not overlap with the image color table of the image displayed immediately before. Then, the entry is re-assigned (S40211), and the deletion process ends.

FIG. 37 shows a flowchart of the process in the random mode. First, it is determined whether or not an image is added (S40301). If it is added, it is checked whether or not it is the end (S40302). If it is at the end, entries are allocated so as not to overlap with the image color tables of all the images that can be displayed immediately before (S40303), and the addition processing ends. If it is not the end, it is checked whether or not there is an entry that is assigned so as not to overlap with the image color tables of all images that can be displayed immediately before and immediately after (S40304). (S40307), information about the newly allocated entry is notified via the allocation information notification means 400010 (S40308), and the addition processing ends. If the entry does not exist, the fact that the entry could not be allocated is notified via the warning notification unit 40009 (S40306), and the adding process ends.

Next, the flow of a process for deleting a document will be described. First, the corresponding image color table is deleted (S40310). When the image color table is deleted, the corresponding pixel value data of the pixel value data 40002 is also automatically deleted. Next, it is determined whether or not the corresponding image is at the end (S40311). If the image is at the end, the deletion process is terminated as it is. If it is not the end, the image color table of another image is checked to see if there is any duplicate entry (S40312). If there are duplicate entries, for the image color table of each image,
The image color table management unit 40008 performs an entry reassignment process so that the entry does not overlap with the image color table of the image displayed immediately before or immediately after (S40).
314). When the entry allocation is completed without contradiction, information on the newly allocated entry is notified via the allocation information notification means 40010 (S40).
316) If the assignment of the entry fails, the warning notifying unit 4 informs that the entry could not be assigned.
0009 (S40317), and terminates the deletion process.

FIG. 38 shows a flowchart of the processing in the tree mode. First, it is determined whether or not an image is added (S40401). If it is added, it is checked whether or not there is an image to be displayed immediately before (S40402). If there is no image to be displayed immediately before, the image color table management unit 40008 assigns an arbitrary half of the assignable area to the corresponding image color table in the image color table 40003 as an entry that can be used freely (S40404). ). If there is an image to be displayed in a straight line, the image color table 40008 can freely add an area not assigned to the image color table of the immediately preceding image to the corresponding image color table in the image color table 40003. Assigned as a usable entry (S40403). Next, it is checked whether or not the target image is at the end (S40406). If it is the end, the additional processing ends. If not, the image color table management means 40008
In the image color table 40003, the addition of the main image allows the assigned area to be duplicated with the image color table of the image displayed immediately before, so that the entry does not overlap. After the assignment (S40405), the addition process ends.

Next, the flow of a process for deleting an image will be described. First, the corresponding image color table is deleted (S40408). When the image color table is deleted, the corresponding pixel value data of the pixel value data 40002 is also automatically deleted. Next, it is determined whether or not the corresponding image is at the end (S40409). If the image is at the end, the deletion process is terminated as it is. If it is not the end, the image color table management means 40008 controls the image color table of the image that can be displayed immediately after the image color table of the image displayed immediately before by the image color table management unit 40008 so that the entries do not overlap. The entry is reassigned (S40410). When the entry allocation is completed without contradiction, information on the newly allocated entry is transmitted to the allocation information notifying means 400.
10 (S40412), and when the assignment of the entry has failed, the fact that the entry could not be assigned is notified via the warning notifying unit 40009 (S40413), and the deletion process ends.

As described above, according to the present embodiment, when an image is added or deleted, re-assignment can be performed so that entries in the image color table of each image do not overlap, so that image display is switched. However, a color selection management method that does not cause the technicolor phenomenon can be provided.
Although the display mode is stored in advance in the display information management unit 40007 in the present embodiment, the display mode may be set from the input unit or automatically extracted from the transition information of the image. Needless to say.

Further, in the present embodiment, images are added or deleted one by one, but it goes without saying that entries may be assigned to a plurality of images at once. Further, in the present embodiment, the method of allocating the common area and the allocatable area is not particularly described, but it goes without saying that all entries may be set as the allocatable area.

In the present embodiment, the area other than the common area is set as the allocatable area. However, it goes without saying that a function for limiting the allocatable area may be added. Further, it goes without saying that the assignable area may be freely changed. Further, in the present embodiment, the display mode is classified into the straight mode, the random mode, and the tree mode. Nor.

In this embodiment, when the entry cannot be allocated, the process is terminated only by giving a warning notification. However, the process is inquired to the user or the user program, and for example, the process is forcibly performed. It goes without saying that the assignment may be made. Further, in the present embodiment, the entries are reassigned one by one, but it goes without saying that some entries may be assigned collectively.

In this embodiment, a warning notification,
Although the assignment information notification is always performed, it is needless to say that the input unit 40001 may be able to suppress these notifications. Further, in the present embodiment, the assignment information is notified when a new assignment occurs, but it is needless to say that the assignment information may be notified by a request from a user or a user program. Absent.

In this embodiment, the efficiency of the processing is improved by judging whether or not it is the end.
It goes without saying that entry duplication may be checked without any particular judgment. Further, in the present embodiment, it goes without saying that the image may be a still image or a moving image.

(Embodiment 17) FIG. 43 is a diagram showing a configuration according to an embodiment of the present invention.
Is input means, 40902 is pixel value data, 40903 is an image color table, 40904 is an image color table management means, 40905 is a display color table management means,
40906 is a display color table, 40907 is display means, 40908 is image designation means, 40909 is condition designation means, 40910 is processing designation means, 40911 is image color table editing means, 40912 is image color table automatic adjustment means, and 40913 is image color Table comparison inspection means, 40914 is an image detection means, 40915 is a processing execution means, 40916 is a display information management means, 4091
Reference numeral 7 denotes an image listing display unit, 40918 denotes an inspection result display unit, 40919 denotes a detected image display unit, and 40920 denotes a redraw command unit.

FIG. 44 shows a flowchart of the main program in the present embodiment. First, the input means 40
A request is input from 901. If the request is a confirmation process (S41001), a confirmation process (S41002) is performed.
The confirmation process is a process of enumerating and displaying a plurality of images and confirming a technicolor phenomenon that occurs when each image is switched. FIG. 45 shows an example of a screen for performing the confirmation processing. In the figure, reference numeral 41101 denotes the entire screen, 411
02 is an example of an image displayed by the image enumeration display means 40917, 41103 is a sample image for checking the state of the technicolor, and 41104 is a button for requesting editing of an image color table described later. When an image of interest is selected on such a screen by the image instruction unit 40908, the image color table management unit 40908
904 sends the pixel value data 40902 of the image and the image color table 40903 to the display color table management means 40904, and the display color table management means 409.
A color table 40 displays information on color data.
905 and displayed on the display means 40906. As a result, an image other than the selected image may or may not cause a technicolor phenomenon depending on the color data in its own image color table. Here, if the entries are assigned to all the image color tables so that the entries do not overlap, the technicolor phenomenon does not occur at all. Sample image 411
Regarding 03, the sample image 1 is displayed so as not to cause the technicolor phenomenon as much as possible, and the sample image 2 is displayed so as to cause the technicolor phenomenon.
Technicolor phenomenon can be accurately grasped. FIG.
52 is also an example of the screen for performing the confirmation processing. The images may be displayed in a hierarchical structure as indicated by 41202 by the image enumeration display means 40917.

Next, input means 4090 which is an editing process
When an editing process is requested by the user 1, a screen as shown in FIGS. 45 to 46 is displayed. An image is selected by the image instruction means 40908, and edit buttons 41104 to 412 are selected.
When 04 is pressed, a screen as shown in FIG. 47 is displayed. In the figure, 41301 is the whole screen, 41302 is an automatic adjustment button, 41303 is an automatic adjustment menu, 41
Reference numeral 304 denotes a manual adjustment button, and reference numeral 41305 denotes a sample image. When an automatic adjustment button 41302 is pressed, an automatic adjustment menu 41303 is displayed, and the image color table automatic adjustment means 40912 automatically adjusts the image color table by a method selected from the menu. The automatic adjustment performed here is not particularly defined, but FIG. 48 shows an example. In the figure, reference numeral 41401 denotes an image color table of a previous image;
Reference numeral 1402 denotes a next image color table before adjustment;
Is the next image color table after automatic adjustment. 4140
In the image color table shown in FIG. 2, the technicolor phenomenon clearly occurs, but as shown in 41403, the technicolor phenomenon can be suppressed by changing the position of the entry so that the color is converted as close as possible.
When a satisfactory result is not obtained only by the automatic adjustment, by pressing the manual button 41304, the image color table editing means 40911 causes
You can directly edit the image color table entry and color data. The effect edited here can be confirmed by the sample image 41305.

Next, detection processing will be described. Input means 4090
When the detection processing is requested by the user 1, a screen as shown in FIG. 49 is displayed. In the figure, 41501 indicates the entire screen, 415
02 is an example of an image display displayed by the image enumeration display means 40917, 41503 is a detection condition setting button,
Reference numeral 1504 denotes a process setting button described later, and reference numeral 41505 denotes an execution button. To perform the detection processing, a detection condition setting button 41503 is pressed. Set detection condition button 4150
When 3 is pressed, the detection condition is input by the condition specifying means 40909. Here, the detection condition is, for example, “3
Such conditions include an image color table having an entry that matches zero or more colors, and an image color table having no entry that matches any color. After the detection conditions are set, an execute button 41505 is pressed. Execute button 4150
When 5 is pressed, the image detection unit 40914 detects an image color table that meets the conditions from the image color table 40903 according to the detection conditions. 4
0919. The detection image display means 40919 includes:
A frame is added or blinking is displayed so that the image can be distinguished from other images. FIG. 50 shows a display example of the detected image display means 40919. The colored portion 41607 is the detected image. By classifying according to various conditions, it is possible to form a group in which the technicolor phenomenon is unlikely to occur.

Next, inspection processing will be described. Image indicating means 40
When inspection processing is requested for a plurality of images selected by 908, the image color table comparison inspection unit 4
In step S913, the matching color data information and the non-matching color data information in the selected plurality of image color tables are compared and inspected, and the result is output to the inspection result display unit 40918. Inspection result display means 40
918 displays the received information on the screen. As a result, it is possible to obtain a standard to be set in the processing described later.

Next, processing will be described. Image instruction means 4090
8 performs a specific process on the image selected.
When the processing setting button 41604 in FIG. 50 is pressed, the processing specifying means 40910 is activated, and the processing can be set. Here, the processing includes, for example, “forcibly converting to one image color table” or “overall luminance of 20
% Weakening. " When the processing is set and the execute button 41505 is pressed, the processing execution means 40915
Is started, and the set processing is executed.

The display information management means 40916 performs
In the course of various processes, the display unit and the redraw command unit required are controlled, and the entire screen display is managed. As described above, according to the present embodiment, a plurality of images can be displayed at the same time, the technicolor phenomenon that occurs when each display is switched can be confirmed, and the image color table can be adjusted by various methods. So you can
It is also possible to suppress the technicolor phenomenon. Further, it is possible to make use of the technicolor phenomenon to obtain an effect at the time of image switching.

In the present embodiment, it goes without saying that the image may be a still image or a moving image. Further, in the present embodiment, an example of the screen is presented, but it goes without saying that the screen itself may be configured in any manner. (Embodiment 18) FIG. 51 shows an example of the configuration of an entire computer system on which a program using the color selection management method of the present invention operates. As shown in FIG. 51, the computer system includes a processing unit 51010,
It comprises a display color table management section 51020, a user interface 51030, an image display section 51040, an image data storage section 51050, and a default color table management section 51060.

A user interface 51030 is a keyboard 51031 for receiving a key punch by the operator.
And a mouse 51032 for receiving mouse clicks and mouse drags.
One image is selected as a representative image from the plurality of images displayed on 43. Display color table management unit 51
Reference numeral 020 manages selected colors that can be simultaneously displayed on the display 51043 using a display color table. The display color table includes each selected color and the RG of the selected color.
FIG. 52 is a table in which B luminances are associated with each other, an example of which is shown in FIG. In the example of FIG. 52, an index (i
= 0, 1, 2,. . . . 255) is associated with an RGB value. Now, if this index value part is represented by 8 bits, 25 bits are selected as the selected color.
Six colors can be assigned.

Default color table management unit 5106
0 stores a default color table used as a display color table when a plurality of images are first displayed. FIG. 53 shows an example of the default color table stored in the default color table management unit 51060. The image display unit 51040 has a VRA
M51041, a video D / A converter 51042, and a display 51043. VRAM5
Reference numeral 1041 denotes an image memory for holding color data of image data displayed on the screen. In the present embodiment,
It is assumed that 8 bits are assigned to one pixel (pixel) of the display. In this case, the value assigned to one pixel is from 0 to 255, and the index value of the display color table is set. The video D / A converter 51042 refers to the display color table, and converts the RGB corresponding to the index value assigned to each pixel of the VRAM 51041.
The value is extracted, converted into an analog video signal according to the RGB value, and displayed on the display 51043.

[0258] The image data storage section 51050 is a CD-R.
An OM 51051 and a hard disk device 51052 hold image data used to display an image on a display. Here, one image data stored in the image data storage unit 51050 includes two types of image color tables having the same structure as the display color table. The first image color table is
6 is a color table in which RGB values of colors originally included in image data are associated with each index. FIG. 54 shows an example of a first image color table of one image data. In the example of FIG. 54, similarly to the data structure of the display color table, an index (i
= 0, 1, 2,. . . , 255) are associated with RGB values.

In the second image color table, similarly to the first image color table, RGB for the index (i = 0, 1, 2,..., 255) indicating the selected color.
Although the values are associated with each other, the RGB values corresponding to each index are the RGB values represented by the first index of the first image color table. FIG. 55 shows an example of the second image color table.

The image data holds pixel value data in addition to the two types of image color tables, and each pixel of the image (768 if a 320 × 240 dot image).
For each (00 pixel), an index value corresponding to the first image color table is set for the RGB value that is the original color data. The processing unit 51010 includes a work RAM 51013 in which various data stored in the image data management unit 51050 are expanded, and a control R in which various processing control programs of the present color selection management method are recorded.
The OM 51012 and the CPU 51011 perform control processing such as selection of a representative image and conversion of a color table in response to an operation performed on the user interface 51030. <Initial screen display> First,
The flow of processing for displaying an image on a display when the program according to the present embodiment is started will be described with reference to the flowchart in FIG. FIG. 57 is a flowchart of control relating to initial screen display. When the program is started and an instruction to display a plurality of images is issued, in step S56010, the CPU 51011 uses the default color table from the default color table management unit 51060 as a display color table to be used for screen display. Read to RAM51013,
The display color table management unit 51020 sets this color table as the current display color table used for screen display.

When the change of the display color table is completed,
This program sequentially reads out image data to be displayed from the image data storage unit 51050, and displays the image data on the display 51043. The specific processing flow is as follows. First, in step S56020, it is detected whether or not an image to be newly displayed remains. If there is an image to be displayed, the corresponding image data is transmitted from the image data management unit 51050 to the work R
Read out to AM51013. (Step S56030)
The image data read to the working RAM 51013 is
Two types of image color tables held by the main image and pixel value data.

Next, in step S56040, the first image color table of the main image data is set as the current image color table for detecting the RGB values from the index values set in the pixel value data. Next, in step S56050, the index value of each pixel of the pixel value data is converted from the index value corresponding to the current image color table of the image data to the index value corresponding to the display color table. For this conversion processing, a known method such as dithering may be used.

Thereafter, each pixel value data of the converted image is written into a predetermined position of the VRAM 51041 corresponding to the display position (step S56060), and the display is updated at a predetermined timing (step S5607).
0). Steps S56020 to S560
The processing up to 70 is repeated until there are no more images to be displayed.

When there are no more images to be displayed, this program allows the operator to enter the keyboard 51031 or the mouse 5
It waits for an input operation using 1032. As described above, in the screen display processing performed by the present program at the time of startup, all images are displayed using the default display color table. <Change of Color Information by Selecting Representative Image> Next, FIG. 57 shows a flow of processing control for changing the display color table and changing the screen display when the operator selects the representative image using the keyboard or the mouse. This will be described with reference to the flowchart of FIG. Fig. 57
9 is a main flowchart of the color selection management method according to the present embodiment.

When the operator, for example, uses mouse 51032 to click on an area on display 51043 where specific image data is displayed (step S57010), CPU 51011 causes mouse 51032 to exit.
The image displayed at the position where “32” is pressed is identified, and the corresponding image is set as a representative image (step S57).
020).

Next, CPU 51011 performs processing on each of all the images being displayed. (Step S57030) If the image data does not match the representative image (Step S57040), the corresponding image data is transferred from the image
Read out to AM51013. (Step S57050)
The image data read to the working RAM 51013 is
Two types of image color tables held by the main image and pixel value data.

Next, in step S57060, the second image color table of the main image data is set as the current image color table for detecting the RGB values from the index values set in the pixel value data. As a result, all the pixels of the image data have the same RGB value. Next, in step S57070,
The index value of each pixel of the pixel value data is converted from the index value corresponding to the current image color table of the image data to the index value corresponding to the display color table. For this conversion processing, a known method such as dithering may be used.

Thereafter, each pixel value data of the converted image is written in a predetermined position of the VRAM 51041 corresponding to the display position (step S57080), and the display is updated at a predetermined timing (step S5709).
0). Steps S57030 to S570
The processing up to 90 is repeated until there are no more images to be displayed. If the image matches the representative image, the processing from step S57050 to step S57090 is skipped, and the processing for the next image is performed.

When the processing up to step S57090 has been completed for all the images to be displayed, the processing for the representative image is controlled next. First, the image data of the representative image is transferred from the image image data management unit 51050 to the work RAM 5.
Read to 1013. (Step S57100) The image data read into the work RAM 51013 is two types of image color tables held by the main image and pixel value data.

Next, in step S57110, the first image color table of the main image data is set as the current image color table for detecting the RGB values from the index values set in the pixel value data. Next, the display color table management unit 51020 sets the first image color table of the representative image read in step S57110 as the current display color table used for screen display.

The image color table of the representative image data,
Since the current display color table matches, there is no need to convert the index value of each pixel of the representative image, and the image data of the representative image is directly converted into a VR corresponding to the display position.
Write to a predetermined position of AM51041 (step S5
7120), the display display is updated at a predetermined timing (step S57130).

When there are no more images to be displayed, the program allows the operator to enter the keyboard 51031 or the mouse 5
It waits for an input operation using 1032. Fig. 58
Shows an example of a screen display in the present embodiment in which three images are displayed using a default color table at the time of startup. Further, FIG.
When the operator selects the upper left image among the three images, the upper left image is set as the representative image, the display color table is replaced as the first image color table of the upper left image data, and the remaining images are replaced. , A screen display using the second image color table.

As described above, all the images other than the selected image use the second image color table, and the indexes of the second image color table all represent the same color. For other images,
Painted with one color. On the other hand, the representative image is displayed in the color of the original image because its own image color table matches the display color table.

In this embodiment, the RGB values corresponding to the respective indexes of the second image color table are the RGB values corresponding to the first index of the first image color table. , Any RG
A B value can be given. For example, in the first image color table, a color having the highest luminance, a color having the lowest luminance, or a color having a higher frequency of use in the first image data is used. You can specify it.

Also, in the present embodiment, only one color is designated as the RGB value corresponding to each index of the second image color table. However, not only one color but a plurality of colors are used as a whole. The RGB values of each index may be assigned as described above. For example, 25
The following eight RGB values are assigned to the six indexes. (R, G, B) = (0, 0, 0) (R, G, B) = (31, 31, 31) (R, G, B) = (63, 63, 63) (R, G, B (B) = (95,95,95) (R, G, B) = (127,127,127) (R, G, B) = (159,159,159) (R, G, B) = (191) , 191, 191) (R, G, B) = (255, 255, 255) By doing so, the image data can be displayed as gray scale data of eight gradations. Regarding which of the eight RGB values is to be assigned to each of the 256 indices, the one closest to the RGB value indicated by each index may be selected in the first image color table.

Further, in the present embodiment, the second image color table is held for each image, but one second image color table is stored for one computer system. The amount of data used by the image data management unit 51050 may be reduced by storing the color table in the image data management unit 51050 so that all images share one second image color table.

In this embodiment, a method of inputting from a mouse or a keyboard by an operator is used as a means for selecting a representative image. However, a timer is provided as a different means for selecting a representative image, and a predetermined time is provided. One image may be sequentially selected as the representative image as the process progresses. In the present embodiment, the second image
Although the image color table is created in advance and stored in the image data management unit 51050, the image color table may be dynamically created when the screen is displayed or when the representative image is switched. Good. At this time, as the color designated in the second image color table, one color from the first image color table of the representative image, or a color having the highest contrast when the representative image is displayed may be selected.

[0278]

As described above, according to the color selection management method of the present invention, the priority can be extracted from the color data of each pixel value data of the image, so that the change of the display color and the appearance can be minimized. By suppressing it, the screen flash can be reduced, which is extremely effective in practical use. Similarly, when displaying an image, it is possible to realize improvement in image quality and control (reduction, suppression, etc.) of technicolor.

Similarly, the present invention dynamically obtains a color to be displayed as a true color as a priority color and assigns it to a display color table, and stores color data to be assigned to the remaining entries of the display color table for which assignment has not been determined. ,
And allocating the display color table to be composed of color data having a good color distribution, so that a display color table containing the true colors of the display image and having good color dispersion can be created.

[0280] Similarly, in the present invention, the step of detecting whether or not color replacement occurs includes detecting whether or not color replacement occurs when switching the screen display from the first image to the second image. However, when color replacement occurs, the technicolor generation warning step displays a message, thereby realizing an excellent color selection management method capable of detecting in advance that technicolor is generated.

Similarly, according to the present invention, when the screen display is switched from the first image to the second image, a color used in the first image and a color used in the second image are used. In addition, by providing a step of displaying a third image when color replacement occurs and a step of replacing the color of the display color table while displaying the third image, a beautiful image that does not cause technicolor Can be realized in an excellent color selection management method that can display.

Similarly, in the present invention, when switching the screen display from the first image to the second image, based on the colors used in the first image and the colors used in the second image. In the case where color replacement occurs, the step of displaying the third image and the step of gradually replacing the color of the display color table while the third image is being displayed are repeatedly performed, thereby generating the technicolor. This makes it possible to realize an excellent color selection management method capable of performing natural image switching without making the image inconspicuous.

Similarly, according to the present invention, when the representative image is selected by the operator, before replacing the display color table with the image color table of the representative image, all the image color tables for the images other than the representative image are changed. Is switched to the second image color table whose index is represented by several representative colors, and is displayed with several representative colors. As a result, the technicolor can be minimized. . Further, the representative image selected by the operator can be displayed on the screen without losing the original color information.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a color selection management method according to the present invention.

FIG. 2 is a flowchart of color data generated in an embodiment of the color selection management method of the present invention.

FIG. 3 is a flowchart showing a color selection method according to an embodiment of the color selection management method of the present invention;

FIG. 4 is a flowchart of color data generated in one embodiment of the color selection management method of the present invention.

FIG. 5 is a flowchart illustrating a color selection method according to an embodiment of the color selection management method of the present invention.

FIG. 6 is a diagram showing a procedure of a priority setting process in the color selection management method according to the third embodiment of the present invention;

FIG. 7 is a diagram showing a procedure of a color selection management process in a color selection management method according to a third embodiment of the present invention.

FIG. 8 is a diagram showing a procedure of a priority setting process in a color selection management method according to a fourth embodiment of the present invention.

FIG. 9 is a diagram showing a processing procedure of a color selection management process in a color selection management method according to a fourth embodiment of the present invention.

FIG. 10 is a diagram showing a procedure of a color selection management process in a color selection management method according to a fifth embodiment of the present invention.

FIG. 11 is a diagram showing a procedure of a color selection management process in a color selection management method according to a sixth embodiment of the present invention.

FIG. 12 is a diagram showing a procedure of a priority setting process in the color selection management method according to the seventh embodiment of the present invention.

FIG. 13 is a diagram showing a procedure of a color selection management process in the color selection management method according to the seventh embodiment of the present invention.

FIG. 14 is a diagram showing a procedure of a color selection management process in the color selection management method according to the eighth embodiment of the present invention.

FIG. 15 is a diagram showing an example of a color selection management process in the color selection management method according to the third embodiment of the present invention.

FIG. 16 is a diagram showing an example of a color selection management process in the color selection management method according to the fourth embodiment of the present invention.

FIG. 17 is a diagram showing an example of a color selection management process in the color selection management method according to the fifth embodiment of the present invention.

FIG. 18 is a diagram showing an example of a color selection management process in the color selection management method according to the sixth embodiment of the present invention.

FIG. 19 is a configuration diagram according to a ninth embodiment of the present invention.

FIG. 20 is a diagram showing a color table and data flow used in Embodiment 9 of the present invention.

FIG. 21 is a diagram showing a step of assigning a fixed color to a display color table and a step of creating a priority color table 20203 from the image color tables 1 to M20204 according to the ninth embodiment of the present invention.

FIG. 22 is a diagram illustrating a step of assigning a priority color to a display color table 20205 according to the ninth embodiment of the present invention.

FIG. 23 is a diagram illustrating a step of allocating colors to the remaining entries of the display color table 20205 so as to improve the color dispersion of the display color table 20205 according to Embodiment 9 of the present invention.

FIG. 24 is a flowchart illustrating a color selection method according to an embodiment of the color selection management method of the present invention.

FIG. 25 is a flowchart of color data generated in an embodiment of the color selection management method of the present invention.

FIG. 26 is a flowchart illustrating a color selection method according to an embodiment of the color selection management method of the present invention.

FIG. 27 is a system configuration diagram according to Embodiment 13 of the present invention.

FIG. 28 is a hardware configuration diagram according to a thirteenth embodiment of the present invention.

FIG. 29 is a configuration diagram showing a data flow according to the thirteenth embodiment of the present invention.

FIG. 30 is a flowchart in Embodiment 13 of the present invention.

FIG. 31 is a configuration diagram showing a data flow according to the fourteenth embodiment of the present invention.

FIG. 32 is a flowchart in Embodiment 14 of the present invention.

FIG. 33 is a flowchart in Embodiment 15 of the present invention.

FIG. 34 is a configuration diagram of a color selection management method according to the sixteenth embodiment of the present invention.

FIG. 35 is a flowchart of a main program according to Embodiment 16 of the present invention.

FIG. 36 is a flowchart of a process in a straight mode according to the sixteenth embodiment of the present invention.

FIG. 37 is a flowchart of processing in a random mode according to Embodiment 16 of the present invention.

FIG. 38 is a flowchart of processing in a tree mode according to the sixteenth embodiment of the present invention.

FIG. 39 is an example of a display mode in the sixteenth embodiment of the present invention. (A) is an example of a straight mode. (B) is an example of a random mode. (C) is an example of a tree mode.

FIG. 40 is an example of data of display information according to the sixteenth embodiment of the present invention. (A) is an example of a data structure. (B) is a specific example of data.

FIG. 41 is an example of an image color table according to the sixteenth embodiment of the present invention.

FIG. 42 shows an example of a display color table according to the sixteenth embodiment of the present invention.

FIG. 43 is a configuration diagram of a color selection management method according to a seventeenth embodiment of the present invention.

FIG. 44 is a flowchart of a main program according to the seventeenth embodiment of the present invention.

FIG. 45 is an example 1 of a confirmation processing screen according to the seventeenth embodiment of the present invention.

FIG. 46 is a second example of the confirmation processing screen according to the seventeenth embodiment of the present invention.

FIG. 47 is an example of an edit processing screen according to the seventeenth embodiment of the present invention.

FIG. 48 shows an example of data of automatic adjustment of an image color table in the seventeenth embodiment of the present invention.

FIG. 49 is a first example of the detection processing screen according to the seventeenth embodiment of the present invention.

FIG. 50 is a second example of the detection processing screen according to the seventeenth embodiment of the present invention.

FIG. 51 is a diagram showing a configuration of a computer system for realizing a color selection method according to Embodiment 18;

FIG. 52 is a diagram showing a data structure of a display color table used when displaying an image on a display.

FIG. 53 is a view showing a data structure of a default color table used as a display color table used when displaying an image on a display;

FIG. 54 is a view showing a data structure of a first image color table of one image;

FIG. 55 is a view showing a data structure of a second image color table of one image;

FIG. 56 is a flowchart of processing for displaying a screen using a default display color table when a representative image is not selected when a program for realizing the color selection method according to the eighteenth embodiment is started.

FIG. 57 is a main flowchart of processing control for selecting a representative image and converting a color table in a program for realizing a color selection method according to an eighteenth embodiment;

FIG. 58 is an example of a screen displayed using a default display color table when a representative image is not selected when a program for realizing the color selection method according to the eighteenth embodiment is started.

FIG. 59 is an example of a screen displayed by a program for realizing the color selection method according to the eighteenth embodiment, in which a representative image is selected and the color table is converted by processing control;

FIG. 60 is a configuration diagram showing a data flow of a conventional color selection management method.

[Description of sign]

Reference Signs List 10 display color table 12 default color table 14 first color table 16 second color table 18 basic color 20 image color 101 display 102 computer body 103 keyboard 104 mouse 105 CPU 106 DRAM 108 input device interface 109 input device 110 disk interface 111 Hard disk 112 Graphic controller 113 VRAM 114 D / A converter for video 115 First image 116 First image color table 117 Second image 118 Second image color table 119 Display color table 127 Third image 128 Third Image color table 20101 CPU 20102 main memory 20103 input device interface 20104 Screen interface 20105 Hard disk 20106 Graphic controller 20107 Frame buffer 20108 Video D / A converter 20201 Fixed color table 20202 Color table with good color distribution 20203 Priority color table 20204 Image color table 1 to Image color table M 20205 Display color table 40001 Input means 40002 Pixel value data 40003 Image color table 40004 Display color table management means 40005 Display color table 40006 Display means 40007 Display information management means 40008 Image color table management means 40009 Warning notification means 40010 Assignment information notification means 40901 Input means 40902 Pixel value Data 40903 Image color table 40904 Image color table management means 40905 Display color table management means 40906 Display color table 40907 Display means 40908 Image designating means 40909 Condition designating means 40910 Processing designating means 40911 Image color table editing means 40912 Image color table automatic adjusting means 40913 Image color table comparison Inspection unit 40914 Image detection unit 40915 Processing execution unit 40916 Display information management unit 40917 Image enumeration display unit 40918 Inspection result display unit 40919 Detection image display unit 40920 Redraw command unit 41101 Confirmation processing screen 41102 Image enumeration screen 41103 Sample image 41104 Image color table Edit button 41201 Confirmation processing screen 41202 Image enumeration screen 41203 Sample image 41204 Image color table edit button 41301 Edit processing screen 41302 Image color table automatic adjustment button 41303 Automatic adjustment menu 41304 Image color table manual edit button 41305 Sample image 41401 Previous image color table 41402 Automatic adjustment Previous image color table 41403 After automatic adjustment Next image color table 41501 Detection processing screen 41502 Image enumeration screen 41503 Detection condition setting button 41504 Processing setting button 41505 Execute button 41601 Detection result screen 41602 Detection image display screen 41603 Detection condition setting button 41604 Processing setting button 41605 Execution button 41606 Detection image 51010 Processing Unit 51011 CPU 51012 Control ROM 51013 Work RAM 51020 display color table management unit 51030 user interface 51031 keyboard 51032 mouse 51040 image display unit 51041 VRAM (image memory) 51042 video D / A converter 51043 display 51050 image data management unit 51051 hard disk device 51052 CD-ROM 51060 default color Table management unit 60101 Pixel value data 60102 Display means 60103 Image color table 60104 Color management step 60105 Display color table 60201 Image color table 60202 Color management step 60203 Display color table 60301 Color data acquisition step 60302 Priority determination block 60303 Display color table registration step 6 304 Registration end determination block 60305 Image display step 60401 Image color table 60402 Color management step 60403 Display color table 60501 Color data acquisition step 60502 Color group acquisition step 60503 Priority determination block 60504 Display color table registration step 60505 Registration end determination block 60506 Image Display step 60601 Color data acquisition step 60602 Color judgment block 60603 Priority judgment block 60604 Display color table registration step 60605 Registration end judgment block 60606 Image display step 60701 Image color table 60702 Color management step 60703 Display color table 60801 Color data acquisition step 60802 Over decision block 60803 display color table registration step 60804 registration end decision block 60805 image display step

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoru Hayama 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. 72) Inventor Hiroyuki Wake 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. 1006 Kadoma Kadoma, Matsushita Electric Industrial Co., Ltd. (72) Inventor Yuki Kusumi 1006 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (69)

[Claims] An image color table and a display color table for storing colors to be displayed on display means,
Color data in the image color table is assigned to the display color table, and each pixel value data of the image is assigned to the display color table corresponding to the color data in the image color table specified by the pixel value data. An image display device for displaying image data represented by a set of color data and a first step of referencing an image color table of an image to be displayed and comparing priorities assigned to the color data; A second step of sequentially selecting color data in descending order and registering the selected color data in the display color table. 2. The color selection management method according to claim 1, wherein each color data of the image color table is divided into groups, and the second step is performed based on the priority of the colors grouped as a color group. A color selection management method characterized by performing a process of sequentially selecting a color group of high color data from a color group and registering the color group in the display color table. 3. The color selection management method according to claim 1, wherein each color data of the image color table is divided into groups, and the second step includes selecting a color of a color data with a higher priority from a color group. And performing a process of registering in the display color table in order from the color selection table. 4. An image display apparatus comprising: a display color table; and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the image specified by the pixel value data are provided. In an image display device for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in the color table, priority is assigned to the color data in the image color table. And assigning color data in the image color table to the display color table in order from color data having a higher priority. 5. An image color table comprising: a display color table; and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the image specified by the pixel value data. In an image display apparatus that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the color table, the color data in the image color table is grouped, Priorities are assigned to groups of color data in an image color table, and groups of color data in the image color table are assigned to the display color table in group units in order from a group having a higher priority. Color selection management method. 6. An image color table, comprising: a display color table; and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the image specified by the pixel value data. In an image display device for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in the color table, priority is assigned to the color data in the image color table. When assigning the color data in the image color table to the display color table, it is checked whether the display color table is full, and if the display color table is full, the display color table is Detects and detects the color data with the lowest priority among the color data assigned to the table. The priority of the newly assigned color data is compared with the priority of the color data to be newly assigned, and if the priority of the newly assigned color data is higher than the detected color data, the new assignment is attempted. A color selection management method, wherein color data is replaced with detected color data and assigned to the display color table. 7. An image color table, comprising: a display color table; and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the image specified by the pixel value data. In an image display apparatus that displays image data represented by a set of color data assigned to the display color table corresponding to the color data in the color table, the color data in the image color table is grouped, A priority is assigned to the color data groups in the image color table, the color data groups in the image color table are assigned to the display color table in groups, and the color data groups in the image color table are assigned to the display colors. When assigning to the table, the display color table is full It is checked whether the display color table is full. If the display color table is full, the color data group having the lowest priority among the color data groups assigned to the display color table is replaced with the replacement target group. Is detected, the priority of the color data group to be newly assigned is compared with the priority of the color data group to be newly assigned, and the priority of the color data group to be newly assigned is higher than that of the replacement target group. In the color selection management method, a group of color data to be newly assigned is replaced with the replacement target group and assigned to the display color table. 8. A display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data specified by the pixel value data are specified. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. Table, assigning priorities to the color data in the image color table, and simultaneously displaying one or more of the images, the colors in all of the image color tables corresponding to the displayed images. Data is assigned to the display color table in order from color data having higher priority. Color selection management method. 9. A display color table comprising a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are specified by the pixel value data. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. A color table in the image color table, grouping the color data in the image color table, assigning priorities to the color data groups in the image color table, and displaying one or a plurality of the images simultaneously. A group of color data in all the image color tables corresponding to the image A color selection management method, wherein a group is assigned to the display color table in order from a group having a priority. 10. A display color table, comprising a plurality of image color tables, allocating color data in the image color table to the display color table, and specifying each pixel value data of an image and the pixel value data. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. The color data in the image color table corresponding to each of the displayed images is displayed when each of the images is displayed, by assigning a priority to the color data in the image color table in correspondence with a table. A color table, and color data in the image color table is displayed in the display color table. When the display color table is full, it is checked whether the display color table is full. If the display color table is full, the lowest priority among the color data allocated to the display color table is checked. Color data with different degrees of color is detected, the detected color data is compared with the priority of the color data to be newly allocated, and the priority of the color data to be newly allocated is higher than the detected color data. In this case, a color selection management method is characterized in that color data to be newly assigned is replaced with the detected color data and assigned to the display color table. 11. A display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are specified by the pixel value data. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. Corresponding to a table, grouping color data in the image color table, assigning a priority to a group of color data in the image color table, and displaying each of the images, each of the images displayed Group of color data in the image color table corresponding to When allocating to the display color table and allocating the group of color data in the image color table to the display color table, it is checked whether the display color table is full, and the display color table is full. In this case, the color data group having the lowest priority among the color data groups assigned to the display color table is detected as a replacement target group, and the color data to be newly assigned to the replacement target group is detected. The priority of the group of color data to be newly assigned is higher than the priority of the group to be replaced, and the group of color data to be newly assigned is And assigning to the display color table by replacing with a target group. Method selection management. 12. A display color table comprising: a display color table; and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image is specified by the pixel value data. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. Corresponding to a table, assigning a priority to the image color table, and simultaneously displaying one or more of the images, color data in all of the image color tables corresponding to the displayed image is more The display color table is sequentially arranged from the color data in the image color table having a higher priority. And a color selection management method. 13. A display color table comprising a display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of the image and the pixel value data are specified by the pixel value data. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. Tables, color data in the image color table are grouped, priorities are assigned to the image color tables, and when one or more of the images are displayed simultaneously, all of the images corresponding to the displayed images are displayed. Group of color data in the image color table of the image color table having a higher priority. And assigning the color data to the display color table in group units in order from the color data group in the color table. 14. A display color table, comprising a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data are specified by the pixel value data. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. Tables are assigned, priorities are assigned to the image color tables, and when each of the images is displayed, color data in the image color table corresponding to each of the displayed images is assigned to the display color table. Assigning the color data in the image color table to the display color table. When the display color table is full, it is checked whether the display color table is full. If the display color table is full, the lowest priority among the color data assigned to the display color table is checked. The color data in the image color table having the detected color data is detected, and the priority of the image color table having the detected color data is compared with the priority of the image color table having the color data to be newly assigned. If the priority of the image color table having color data to be newly allocated is higher than that of the image color table having data, the color data to be newly allocated is replaced with the detected color data. And assigning the color selection table to the display color table. 15. A display color table and a plurality of image color tables, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the pixel value data specified by the pixel value data are specified. In an image display apparatus for displaying image data represented by a set of color data assigned to the display color table corresponding to the color data in an image color table, one or a plurality of the images are displayed in the image color table, respectively. Tables, color data in the image color table are grouped, priorities are assigned to the image color tables, and when displaying each of the images, the image colors corresponding to each of the displayed images are displayed. The groups of color data in the table are assigned to the display color table in groups. Assigning a group of color data in the image color table to the display color table, checking whether the display color table is full, and if the display color table is full, Detecting, as a replacement target group, a color data group in the image color table having the lowest priority among the color data groups assigned to the display color table, and Compare the priorities of the color table and the image color table having the color data group to be newly allocated, and have a color data group that is to be newly allocated than the image color table having the replacement target group. If the priority of the image color table is higher, a new And a group of color data are the color selection method of managing and allocating the display color table is replaced with the replacement target group so Te. 16. When detecting the group to be replaced, if the group of the group to be replaced is released from the display color table, one or more groups of color data to be newly allocated can be allocated. 16. The color selection management method according to claim 7, wherein a plurality of replacement target groups are detected. 17. When detecting the group to be replaced, when the assignment is released from the display color table, the number of color data that can be assigned to the display color table is changed to the color data to be newly assigned. 7. The replacement target group is detected from a group of color data that is equal to or more than the number of color data belonging to the group of (1) and (2).
1. The color selection management method according to claim 15. 18. The method according to claim 18, wherein when the replacement target group is detected, when the assignment is released from the display color table, the number of color data that can be assigned to the display color table is changed to the color data to be newly assigned. One or more replacement target groups are detected in ascending order of priority so that the number of color data belonging to the group is equal to or more than the number of color data belonging to the group. At this time, among the detected one or more replacement target groups, the one having the highest priority is set as a comparison target, and when replacing with the color data group to be newly allocated, the newly allocated group is newly allocated. The group of color data to be replaced is replaced with one or a plurality of detected replacement target groups collectively. 16. The color selection management method according to claim 7, wherein the color selection table is assigned to the display color table. 19. The image color table, the color data in the image color table, or the group of color data in the image color table itself, but the color data in the image color table, the image color table, or the image color table. 19. The color selection management method according to claim 4, wherein priorities are assigned to sets of color data groups in the table. 20. A display color table and an image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and color data assigned to the display color table are provided. And dynamically assigning a color to be displayed in a true color as a priority color to a display color table and assigning the color to a display color table in an image display device displaying the image data expressed by the combination of Dynamically determining and assigning color data to be assigned to the remaining entries so that the display color table is composed of color data with good color distribution. 21. The remaining entries of the display color table for which the assignment has not been determined are replaced with the colors already prepared for the display color table from the image color table composed of color data having good color distribution. 21. The color selection management method according to claim 20, further comprising a step of allocating color data excluding close color data. 22. The color selection management method according to claim 20, wherein a predetermined number of colors are detected in accordance with a specific priority, and the detected colors are used as priority colors. 23. The color selection management method according to claim 20, wherein a color commonly used in a plurality of image color tables is detected, and the detected color is used as a priority color. 24. The color according to claim 20, wherein a predetermined number of colors commonly used in a plurality of image color tables are detected, and the detected colors are used as priority colors. Selection management method. 25. A step of previously assigning some colors to the display color table as fixed colors, and when the priority color is not the same as the fixed color and there are remaining entries in the display color table, 25. The color selection management method according to claim 20, further comprising an assigning step. 26. The color selection management method according to claim 1, wherein, in the second step, the priority is used frequency, current number of uses, used time, window priority, priority given to color characteristics, color Brightness, color density, color freshness, color saturation, priority given to color gradation, priority to give higher color closer to color gradation, higher priority to far color in color gradation A color selection management method, wherein at least one of them is selected. 27. When switching the screen display from the first image to the second image, the number of colors that can be displayed on the screen and the number of colors that are used in the first image and the number of colors that are used in the second image are different. A color selection management method comprising: a step of detecting whether or not a color replacement occurs to display a second image based on a displayed color; and a step of notifying that a color replacement occurs. 28. When switching the screen display from the first image to the second image, the number of colors that can be displayed on the screen and the number of colors used in the first image and the number of colors that are used in the second image are different. Detecting whether a color replacement occurs to display the second image from the color that is present, and a third step between displaying the first image and the second image when the color replacement occurs. And displaying the third image, and replacing the color of the display color table while displaying the third image. 29. The color selection management method according to claim 28, wherein the third image is displayed using a common color of the first image and the second image. 30. The color selection management method according to claim 28, wherein the third image is one of an image obtained by reducing the color of the first image and an image obtained by reducing the color of the second image. . 31. The color selection management method according to claim 28, wherein an image obtained by reducing the color of the first image and an image obtained by reducing the color of the second image are sequentially displayed as the third image. 32. An image obtained by sequentially reducing the number of colors in an image obtained by reducing the color of the first image and an image obtained by sequentially increasing the number of colors in an image obtained by reducing the color of the second image as a third image. 30. The color selection management method according to claim 28, wherein the color selection management method comprises: 33. Using the first image as the third image,
29. The color selection management method according to claim 28, further comprising the step of sequentially replacing each entry to be replaced among the entries of the color table during a set time. 34. The color selection management method according to claim 33, wherein a second image is used as the third image. 35. The color selection management method according to claim 33, wherein the first image and the second image are used in order as the third image. 36. A method using a first image as a third image,
29. The color selection management method according to claim 28, wherein an operation of repeating a step of bringing the content of the replaced entry among the entries of the color table closer to the replaced color for a set time is used. 37. The color selection management method according to claim 36, wherein a second image is used as the third image. 38. The color selection management method according to claim 36, wherein the first image and the second image are used in order as the third image. 39. Using the first image as the third image,
An operation of repeating the step of bringing the contents of the replaced entries out of the entries of the color table closer to the colors to be replaced, and using a large number of steps to be repeated for an entry having a large difference in the contents of the replaced entries 29. The color selection management method according to claim 28, wherein: 40. The color selection management method according to claim 39, wherein a second image is used as the third image. 41. The color selection management method according to claim 39, wherein the first image and the second image are used in order as the third image. 42. An operation in which a first image is displayed as a third image, and an operation of repeating a step of arbitrarily changing the content of an entry to be replaced among the entries of the color table during a set time is used. Item 28. A color selection management method according to Item 28. 43. The color selection management method according to claim 42, wherein a second image is used as the third image. 44. The color selection management method according to claim 42, wherein the first image and the second image are used in order as the third image. 45. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image color table management unit that manages color data in the image color table is provided, and the image color table management unit includes: When there are a plurality of image color tables, the color data is allocated so that each entry does not overlap. 46. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image color table management unit that manages color data in the image color table is provided, and a plurality of images to be displayed exist. In a case where the order in which the images are displayed is determined in advance, the image color table management means allocates, to the image color table of the image, color data of less than half the number of assignable entries. Color selection management method. 47. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image color table management unit that manages color data in the image color table is provided, and a plurality of images to be displayed exist. When the total number of images is predetermined, the image color table management means allocates color data equal to or less than the number obtained by dividing the number of assignable entries by the total number of images to the image color table of the image. And a color selection management method. 48. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device for displaying image data represented by a set of assigned color data, an image color table management means for managing color data in the image color table is provided, and a new image A is set as a terminal image. When adding, the image color table management means, for the image color table A of the image A,
A color selection management method, wherein color data is assigned so that entries do not overlap with image color tables of all images that can be displayed immediately before. 49. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device for displaying image data represented by a set of assigned color data, an image color table management means for managing color data in the image color table is provided, and an image A is newly set as an intermediate image. When adding, the image color table management means, for the image color table A of the image A,
A color selection management method, wherein color data is assigned so that entries do not overlap with the image color tables of all images that can be displayed immediately before and the image color tables of all images that can be displayed immediately after. 50. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display apparatus for displaying image data represented by a set of assigned color data, an image color table management means for managing color data in the image color table and an image color table management means assigning entries. 50. The color selection management method according to claim 45, further comprising: a warning notifying unit that notifies a warning when the color selection cannot be performed. 51. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image color table management unit that manages color data in the image color table is provided, and for the image color table, A common area to which common color data is assigned in advance is determined, and an entry other than the common area is set as an assignable area.
The color selection management method according to claim 45, wherein color data is allocated to the allocatable area. 52. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image color table management unit that manages color data in the image color table is provided, and for the image color table, A common area to which common color data is assigned in advance is determined, and an entry other than the common area is set as an assignable area.
46. An entry in the common area is assigned when the color data matches the color data in the common area, and an entry in the assignable area is assigned to color data not assigned to an entry in the common area.
52. The color selection management method according to claim 51. 53. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image color table management unit that manages color data in the image color table is provided, and for the image color table, A common area to which common color data is assigned in advance is determined, and an entry other than the common area is set as an assignable area.
If the color data matches the color data in the common area or a color within a predetermined range, an entry in the common area is assigned. For color data not assigned to an entry in the common area, 52. The color selection management method according to claim 45, wherein an entry is allocated. 54. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image color table management unit that manages color data in the image color table is provided, and for the image color table, A common area to which common color data is assigned in advance is determined, and an entry other than the common area is set as an assignable area.
52. The method according to claim 45, wherein the predetermined number of entries in the allocatable area are allocated, and the remainder is allocated to the closest color data entry among the color data in the common area. The described color selection management method. 55. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. 55. An image display device for displaying image data represented by a set of assigned color data, the image display device having a function of limiting an assignable area of an entry. Color selection management method. 56. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device for displaying image data represented by a set of assigned color data, an assignment information notifying unit for notifying information about the image color table is provided, and the assignment information notifying unit includes the image color table. 56. The color selection management method according to claim 45, wherein information about the color selection is notified. 57. At least one display color table and at least one image color table, wherein color data in the image color table is allocated to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image enumeration display unit that displays a plurality of images and an image enumeration display unit that focuses on all the images displayed by the image enumeration display unit Image instruction means for specifying image data to be provided, and redraw command means for notifying the image enumeration display means that the image is to be redrawn most using the image color table of the image data specified by the image instruction means. A color selection management method capable of confirming display of a technicolor phenomenon accompanying the change of the image of interest. 58. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. 58. An image display device for displaying image data represented by a set of assigned color data, comprising an image color table editing means for editing an image color table of a designated image of interest. The described color selection management method. 59. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. An image display apparatus for displaying image data represented by a set of assigned color data, comprising an image color table automatic adjusting means for automatically adjusting an image color table of an image of interest or all images. 57. The color selection management method according to claim 57, wherein the color selection management method is performed. 60. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. An image display device that displays image data represented by a set of assigned color data, an image enumeration display unit that displays a plurality of images, and a condition specification unit that specifies a condition for dividing the plurality of images. ,
An image detection unit that detects an image that satisfies the condition specified by the condition specification unit and the information of the image table of the plurality of images, and an image detected by the image detection unit can be distinguished from other images. A color selection management method, comprising: a detected image display means for displaying. 61. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image enumeration display unit that displays a plurality of images and a plurality of images out of all images displayed by the image enumeration display unit An image designating unit for designating image data to be focused on, and an image for comparing and inspecting information on a common part and a non-common part of the image color table by comparing image color tables of the plurality of images designated by the image designating unit A color table comparison / inspection unit, and information output by the image color table comparison / inspection unit. And a test result display means for displaying information. 62. At least one display color table and at least one image color table, wherein color data in the image color table is allocated to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image enumeration display unit that displays a plurality of images and a plurality of images out of all the images displayed by the image enumeration display unit Image specifying means for specifying image data to be focused on; processing specifying means for specifying processing instructions to be applied to the image color tables of the plurality of images specified by the image specifying means; Performing processing on the color table or the image as required according to the processing instruction Means for managing color selection. 63. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. In an image display device that displays image data represented by a set of assigned color data, an image enumeration display unit that displays a plurality of images, and a plurality of images out of all images displayed by the image enumeration display unit Image specifying means for specifying image data to be focused on, processing specifying means for specifying processing instructions to be applied to the image color tables of the plurality of images specified by the image specifying means, and specifying to the processing specifying means Processing for performing processing on the color table or the image as required according to the processing instruction 62. The color selection management method according to claim 61, further comprising: application means. 64. At least one display color table and at least one image color table, wherein color data in the image color table is assigned to the display color table, and each pixel value data of an image and the display color table are assigned to the display color table. 46. An image display device for displaying image data represented by a set of assigned color data, wherein a moving image is also targeted.
64. The color selection management method according to claim 63. 65. In a computer system environment having a processor, a memory, and a display, wherein colors displayed on the display are managed by a display color table in the memory, when two or more images are simultaneously displayed on the display. A representative image selecting means for setting one of the two or more images being displayed as a representative image according to an instruction of the operator, and a common image when the representative image is selected by the representative image selecting means. Replacing the color table with the first image color table used in the representative image selected by the representative image selecting means; and replacing all image color tables used in images other than the representative image with all entries. Replacing the image with a second image color table representing the same color. 66. The apparatus according to claim 65, further comprising a representative color image selecting means for sequentially selecting one image as a representative image with a lapse of a predetermined time when two or more images being displayed are simultaneously displayed. Color selection management method. 67. The color selection management method according to claim 65, wherein two or more images share one second image color table. 68. As a second image color table, all entries represent the same color, and the color represented by the storage location is one of the colors represented by the first image color table. 65, 66, and 6 using an image color table that is
7. The color selection management method according to 7. 69. An image color in which, as the second image color table, colors represented by all entries are composed of several representative colors selected from the colors represented in the first image color table. 67. The color selection management method according to claim 65, wherein the table uses a table.