JP2004139496A - Image data coloring support device, image data coloring support method, and image data coloring support program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of possible display of created data in different colors from those assumed at the time of data creation when a display device used for presentation differs from a display device used at the time of data creation. <P>SOLUTION: Color sample data is input to a creation display device emulating means 101 and an execution display device emulating means 102 respectively, color reproduction with each of the display devices is emulated, and the results are compared and output with a color reproducibility difference detecting means 103. Thus, a data creator can select the color to use for data creation after grasping the color variation along with the different devices beforehand. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image data color arrangement support device for supporting color arrangement when image data used for a presentation or the like is created.
[0002]
[Prior art]
In general, a display device used when creating image data used in a presentation or the like is often different from a display device that actually performs a presentation. However, since the screens of these two different display devices have different color reproduction ranges, the color scheme of data when actually giving a presentation may be different from the color scheme originally intended by the creator. This may result in a color scheme that is difficult to see. This tendency is particularly strong when the creator has no knowledge of colors.
[0003]
In general, various techniques have been devised for improving the difference in appearance due to the difference in display devices when displaying image data. In addition, a technique for supporting a color scheme when creating image data used in a presentation or the like has been devised (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-8-249441 [0005]
[Problems to be solved by the invention]
However, in the above-described color scheme support method, only support on the display device attached to the system for creating data is considered, and the appearance of the display device actually performing the presentation uses the color scheme support method. However, there is a problem that the result may be different from the result created by the method.
[0006]
The present invention solves the problems as described above.When creating data to be used for a presentation or the like, the present invention emulates color reproducibility on a display device that actually performs a presentation or the like, and arranges a color scheme on a display emulated. An object of the present invention is to provide an image data coloring support apparatus, an image data coloring support method, and an image data coloring support program that can support.
[0007]
[Means for Solving the Problems]
In order to solve the conventional problem, the present invention has the following configuration.
[0008]
According to the first aspect of the present invention, there is provided a creation display device emulation means for inputting color sample data and creation display device characteristic data, emulating display by the creation display device, and outputting creation display device color sample data, Execution display device emulation means for inputting sample data and execution display device characteristic data, emulating display by the execution display device, and outputting execution display device color sample data, the creation display device color sample data and the execution display And a color reproducibility difference detecting means for inputting device color sample data, calculating a chromaticity difference, and outputting chromaticity difference information.
[0009]
The invention according to claim 2 is a creation display device emulation means for inputting creation image data and creation display device characteristic data, emulating display by the creation display device, and outputting creation display device color emulation data, Execution display device emulation means for inputting created image data and execution display device characteristic data, emulating display by the execution display device and outputting execution display device color emulation data, and the created display device color emulation data. The use of inputting the execution display device color emulation data, performing the same region division on both, calculating the chromaticity difference for each divided region, and outputting the used color determination information including the divided region position information and the chromaticity difference information An image data color distribution support device comprising: a color determination unit.
[0010]
According to a third aspect of the present invention, there is provided an execution display device emulation means for inputting created image data and execution display device characteristic data, emulating display by the execution display device, and outputting execution display device color emulation data, An image data color arrangement support device comprising: a color arrangement check unit that inputs execution display device color emulation data and a color arrangement check rule and outputs color arrangement check information.
[0011]
According to a fourth aspect of the present invention, the color arrangement checking means performs area division on the emulated data of the execution display device, extracts color information of two adjacent divided areas, and extracts color information of the two divided areas from the color information of the two divided areas. Calculating the brightness difference, and outputs the used color determination information having the divided area position information and the color arrangement validity information when the brightness difference is equal to or more than a predetermined value, and the calculated chromaticity difference is less than a predetermined value, and Calculating a hue difference from the color information of the two divided areas, and when the hue difference is equal to or less than a predetermined value and the hue difference is less than a hue difference of a complementary color, the image processing apparatus has divided area position information and halation prediction information. Output the used color determination information, the calculated chromaticity difference is less than a predetermined value, and if the calculated hue difference is less than a predetermined value or more than a complementary color hue difference, the divided region position information and the hard-to-identify information Use color format with Is image data coloring support apparatus of claim 3, wherein the output information.
[0012]
According to a fifth aspect of the present invention, there is provided a device which stores a plurality of execution display device characteristic data, selects the execution display device characteristic data based on target device designation information input from the outside, and outputs the selected data to the execution display device emulation means. The image data coloring support apparatus according to any one of claims 1 to 4, further comprising a display data storage unit.
[0013]
The invention according to claim 6 is a creation display device emulation step of inputting color sample data and created display device characteristic data, emulating display by the created display device, and outputting created display device color sample data, Emulating the display data and execution display device characteristic data, emulating the display by the execution display device and outputting the execution display device color sample data, the execution display device emulation step, and the creation display device color sample data and the execution display A color reproducibility difference detecting step of inputting device color sample data, calculating a chromaticity difference, and outputting chromaticity difference information.
[0014]
The invention according to claim 7 is an image data coloring support program for causing a computer to execute each step of the image data coloring support method according to claim 6.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
An image data coloring support apparatus according to each embodiment of the present invention will be described with reference to the drawings. In the present invention, as generally assumed when creating and executing presentation data, it is assumed that a display device used for creating image data is different from a display device for performing presentation. Hereinafter, a display device used when creating image data is referred to as a creation display device, and a display device that actually displays image data in a presentation or the like is referred to as an execution display device.
[0016]
(Embodiment 1)
FIG. 1 is a block diagram illustrating a configuration of an image data color arrangement support apparatus according to Embodiment 1 of the present invention. In this image data color arrangement support device, 101 is a creation display device emulation means, 102 is an execution display device emulation means, and 103 is a color reproducibility difference detection means.
[0017]
The operation of the image data coloring support apparatus configured as described above will be described below.
[0018]
The creation display device emulation means 101 performs signal processing on the color sample data according to the creation display device characteristic data to emulate the color reproducibility of the creation display device, and generates the result as the creation display device color sample data. Is output as The creation display device is a display device used when creating image data such as a presentation. The created display device characteristic data is data indicating the color reproducibility of the created display device. In the present embodiment, chromaticity point information of three colors of RGB and white is used as the created display device characteristic data. However, the created display device characteristic data only needs to represent color reproducibility, and there is no particular limitation.
[0019]
The execution display device emulation means 102 performs signal processing on the color sample data in accordance with the execution display device characteristic data, similarly to the creation display device emulation means 101, and emulates the color reproducibility of the execution display device. Output as execution display device color sample data. The execution display device is a display device used when displaying image data in a presentation or the like. The execution display device characteristic data is data indicating the color reproducibility of the execution display device. In the present embodiment, chromaticity point information of three colors of RGB and white is used as the created display device characteristic data. However, the created display device characteristic data only needs to represent color reproducibility, and there is no particular limitation.
[0020]
The color sample data is a color palette expressing a plurality of colors. The number of colors and the shape need not be particularly limited, and may be determined in consideration of practical convenience. A commonly used Macbeth color checker or other color chart may be used as color sample data.
[0021]
The color reproducibility difference detection means 103 compares the chromaticity of each color of the created display device color sample data and the execution display device color sample data, and outputs the chromaticity difference of each color as chromaticity difference information.
[0022]
As described above, according to the first embodiment, it is possible to emulate the color reproducibility when the color sample data is displayed on each of the creation display device and the execution display device, and to compare them. Therefore, the creator of the image data can know in advance the color change that occurs when a specific color represented by the color sample data is displayed on a different display device.
[0023]
That is, since the creator of the image data can arrange colors between the creation display device and the execution display device while avoiding colors that change greatly, the creator of the image data performs presentation or the like on a display device different from the display device that created the image data. In addition, it is possible to reduce a color difference depending on a display device.
[0024]
(Embodiment 2)
FIG. 2 is a block diagram showing a configuration of an image data color arrangement support device according to Embodiment 2 of the present invention. In this image data coloring support apparatus, reference numeral 101 denotes a creation display device emulation unit, reference numeral 102 denotes an execution display device emulation unit, and reference numeral 201 denotes a use color determination unit.
[0025]
The creation display device emulation means 101 and the execution display device emulation means 102 in the present embodiment have the same configuration as in the first embodiment.
[0026]
The operation of the image data coloring support apparatus configured as described above will be described below.
[0027]
The operations of the creation display device emulation means 101 and the execution display device emulation means 102 are the same as those in the first embodiment, and thus description thereof will be omitted. The difference from the first embodiment is that in the first embodiment, the input to the creation display device emulation unit 101 and the execution display device emulation unit 102 is color sample data, whereas in the present embodiment, The input is created image data.
[0028]
First, the used color determination unit 201 divides each of the created display device emulation data and the execution display device emulation data, which are input image data, by edge detection, and sets each divided region as a component. The chromaticity difference between the component colors divided from the created display device emulation data and the execution display device emulation data is obtained, and the chromaticity difference for each component is output as use color determination information.
[0029]
As described above, according to the second embodiment, it is possible to emulate the display of each of the case where the created image data is displayed on the creation display device and the case where the created image data is displayed on the execution display device, and compare them. It is possible to know in advance how the colors used in the data change depending on the display device.
[0030]
Therefore, among the colors used in the created image data, check the part where the color difference between when displayed on the created display device and when displayed on the execution display device is large, and if necessary, correct the color of the created image data It can be performed.
[0031]
In the present embodiment, the area division is performed on each of the emulated data by the use color determination means. However, the area division is performed not by the use color determination means but by the input of the created image data and the input of both emulation means. The same effect can be obtained even if one is inserted into the.
[0032]
In the present embodiment, the data is compared for each divided area by performing the area division. However, one or a plurality of predetermined positions are determined in advance without performing the area division, and the data comparison for the positions is performed. There is also a form in which As a result, it is not possible to perform a detailed comparison using the data obtained by performing the region division as in the present embodiment, but the configuration of the apparatus is simplified because complicated processing such as edge detection is not required. Of course, even in such a form, the position designation may be performed by the used color determination unit, or one may be inserted between the input of the created image data and the input of both emulation units.
[0033]
(Embodiment 3)
FIG. 3 is a block diagram showing a configuration of an image data color arrangement support apparatus according to Embodiment 3 of the present invention. In this image data color arrangement support device, reference numeral 102 denotes an execution display device emulation unit, and reference numeral 301 denotes a color arrangement check unit.
[0034]
The execution display device emulation means 102 in the present embodiment has the same configuration as in the first embodiment.
[0035]
The operation of the image data coloring support apparatus configured as described above will be described below.
[0036]
The operation of the execution display device emulation means 102 is the same as that of the first embodiment, and the description is omitted. The difference from the first embodiment is that in the first embodiment, the input to the execution display device emulator 102 is color sample data, whereas in the present embodiment, the input is created image data. .
[0037]
The color scheme checking unit 301 checks the color scheme of the emulated data of the execution display device based on a color scheme that incorporates the data. The coloring scheme is a rule for evaluating whether the visibility of the coloring scheme is good or bad based on the subjective evaluation. The following is an example of a coloring rule and its evaluation.
[0038]
The color arrangement check unit 301 divides the execution display device emulation data, which is input image data, by edge detection, and makes each divided region a component. The color arrangement of each component is checked. The procedure of the color arrangement check for each component will be described based on the flowchart shown in FIG.
[0039]
First, in step S1001 of FIG. 4, the color of the component itself and the color of the component adjacent to the component are extracted, and the process proceeds to step S1002. In step S1002, if the brightness difference between the two colors extracted in step S1001 is equal to or greater than a predetermined value for determining the brightness difference, the process proceeds to step S1003, and if the brightness difference is equal to or less than the predetermined value for determining the brightness difference, , Transitions to step S1004. In step S1003, as the use color determination information, the position information of the target component and a flag indicating that there is no problem with the color scheme of the area (color scheme valid information) are output as a set, and the process ends.
[0040]
In step S1004, if the hue difference between the two colors extracted in step S1001 is equal to or more than a predetermined value for determining the hue difference and equal to or less than the hue difference of the complementary color, the process proceeds to step S1005, and the hue difference between the two colors is determined as the hue difference. If the value is equal to or smaller than the predetermined value, the process proceeds to step S1006. In step S1005, a flag indicating that there is a possibility that halation may occur at the boundary (halation prediction information) due to the position information of the target component and the coloring of the area as the used color determination information is output as a set, and the process ends. In step S1006, a flag indicating that identification is likely to be difficult (difficult identification information) is output as the use color determination information due to the positional information of the target component and the coloring of the area, and the process ends.
[0041]
The above is an example of the color arrangement rule in the present embodiment. However, the coloration rules need not be particularly limited as long as they can determine whether the visibility of the coloration is good or bad based on the subjective evaluation.
[0042]
As described above, according to the third embodiment, a color arrangement check can be performed on an emulated image when the created image data is displayed on the execution display device.
[0043]
(Embodiment 4)
FIG. 5 is a block diagram illustrating a configuration of an image data color arrangement support apparatus according to Embodiment 4 of the present invention. In this image data coloring support apparatus, 101 is a creation display device emulation means, 102 is an execution display device emulation means, 103 is a color reproducibility difference detection means, and 401 is a device display characteristic data storage means.
[0044]
The creation display device emulation means 101, the execution display device emulation means 102, and the color reproducibility difference detection means 103 in the present embodiment have the same configuration as in the first embodiment.
[0045]
The operation of the image data coloring support apparatus configured as described above will be described below.
[0046]
The operations of the creation display device emulation unit 101, the execution display device emulation unit 102, and the color reproducibility difference detection unit 103 are the same as those in the first embodiment, and thus the description is omitted.
[0047]
The device display characteristic data storage unit 401 stores display characteristic data of a plurality of typical display devices that are assumed to be execution display devices. A typical display device is a display device used for giving a presentation or the like, and is, for example, a liquid crystal monitor, a notebook PC, a projector, or the like. One of the plurality of display characteristics held therein is designated by the target device designation information and output as designated characteristic data.
[0048]
In other words, the data creator can select a display device having display characteristics closer to the display device that actually performs the presentation or a display device of a similar method from the characteristics of the display devices held internally through the target device designation information. it can.
[0049]
The execution display device emulation means 102 performs signal processing on the created image data in accordance with the designated characteristic data, emulates the color reproducibility of the execution display device, and outputs it as created display device color sample data.
[0050]
As described above, according to the fourth embodiment, even when the display characteristics of a display device for performing a presentation cannot be obtained, the characteristics of a typical display device expected to be used during a presentation can be substituted. Thus, an effect equivalent to that of the second embodiment can be obtained.
[0051]
(Embodiment 5)
FIG. 6 is a block diagram illustrating a configuration of an image data color arrangement support apparatus according to Embodiment 5 of the present invention. In this image data coloring support apparatus, reference numeral 102 denotes an execution display device emulation means, reference numeral 301 denotes a coloring check means, and reference numeral 401 denotes a device display characteristic data storage means.
[0052]
The execution display device emulation means 102 and the color arrangement check means 301 in the present embodiment have the same configuration as in the third embodiment.
[0053]
The operation of the image data coloring support apparatus configured as described above will be described below.
[0054]
The operations of the execution display device emulation means 102 and the color arrangement check means 301 are the same as those of the third embodiment, and thus the description is omitted.
[0055]
The operation of the device display characteristic data storage unit 401 is the same as that of the fourth embodiment. The display characteristic data of a plurality of typical display devices assumed as the execution display device is held. A typical display device is a display device used for giving a presentation or the like, and is, for example, a liquid crystal monitor, a notebook PC, a projector, or the like. One of the plurality of display characteristics held therein is designated by the target device designation information and output as designated characteristic data.
[0056]
The execution display device emulation means 102 performs signal processing on the created image data according to the designated characteristic data, emulates the color reproducibility of the execution display device, and outputs the result as execution display device emulation data.
[0057]
As described above, according to the fifth embodiment, even when the display characteristics of a display device for performing a presentation cannot be obtained, the characteristics of a typical display device expected to be used during a presentation can be substituted. Thus, an effect equivalent to that of the third embodiment can be obtained.
[0058]
In each of the above embodiments, data representing color reproducibility is used as display characteristic data of a display device. In addition to this, a more accurate display device characteristic such as luminance and gamma characteristics is considered. Emulation becomes possible.
[0059]
The display device emulated by the execution display device emulation means may be a monochrome device or an output device such as a printer.
[0060]
In each of the above embodiments, the image data color arrangement support apparatus has been described. However, it is not particularly necessary to realize the apparatus by hardware, and each means is realized by software as each step of a program, and a computer or the like is used. The same effect can be obtained even if the method is implemented. Also, by storing such software on a medium or distributing it over a network, the realization of these functions is further facilitated.
[0061]
【The invention's effect】
As described above, according to the image data coloring support device of the present invention, when creating image data of a presentation, the display characteristics of a display device that is assumed to actually perform the presentation are emulated and the emulated image is displayed. A color arrangement check can be performed for this. That is, an image data color arrangement support apparatus, an image data color arrangement support method, and an image data support method for assisting a color creator who is unfamiliar with the creation of color arrangement and presentation data in consideration of a difference in color reproduction by a display device. A coloring support program can be provided.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of an image data coloring support apparatus according to Embodiment 1 of the present invention. FIG. 2 is a block diagram illustrating a configuration of an image data coloring support apparatus according to Embodiment 2 of the present invention. FIG. 4 is a block diagram illustrating a configuration of an image data color arrangement support device according to a third embodiment of the present invention. FIG. 4 is a flowchart illustrating a procedure of a color arrangement check according to the third embodiment of the present invention. FIG. 6 is a block diagram illustrating a configuration of an image data color arrangement support apparatus. FIG. 6 is a block diagram illustrating a configuration of an image data color arrangement support apparatus according to Embodiment 5 of the present invention.
101 Creation display device emulation means 102 Execution display device emulation means 103 Color reproducibility difference detection means 201 Color determination means 301 Color arrangement check means 401 Device display characteristic data storage means

Claims (7)

Creation display device emulation means for inputting color sample data and created display device characteristic data, emulating display by the created display device, and outputting created display device color sample data,
Execution display device emulation means for inputting the color sample data and execution display device characteristic data, emulating display by the execution display device and outputting execution display device color sample data,
Image data coloration, comprising: a color reproducibility difference detection unit that inputs the created display device color sample data and the execution display device color sample data, calculates a chromaticity difference, and outputs chromaticity difference information. Support device. Creation display device emulation means for inputting creation image data and creation display device characteristic data, emulating display by the creation display device, and outputting creation display device color emulation data,
Execution display device emulation means for inputting the created image data and execution display device characteristic data, emulating display by the execution display device, and outputting execution display device color emulation data,
The created display device color emulation data and the execution display device color emulation data are input, the same region is divided into both, and a chromaticity difference is calculated for each divided region, and divided region position information and chromaticity difference information are calculated. And a use color determination unit that outputs use color determination information including the use color determination information. Execution display device emulation means for inputting created image data and execution display device characteristic data, emulating display by the execution display device, and outputting execution display device color emulation data,
An image data color arrangement support device, comprising: a color arrangement check unit that inputs the execution display device color emulation data and a color arrangement check rule and outputs color arrangement check information. The color arrangement checking means includes:
Area division is performed on the execution display device emulation data to extract color information of two adjacent divided areas,
Calculating a lightness difference from the color information of the two divided areas, and when the lightness difference is equal to or more than a predetermined value, outputting used color determination information having divided area position information and coloration validity information;
The calculated chromaticity difference is less than a predetermined value, and a hue difference is calculated from color information of the two divided areas, and the hue difference is equal to or less than a predetermined value, and the hue difference is a hue difference of a complementary color. Output use color determination information having divided area position information and halation prediction information if less than
When the calculated chromaticity difference is less than a predetermined value and the calculated hue difference is less than a predetermined value or greater than or equal to a complementary color hue difference, output use color determination information including divided region position information and difficult-to-identify information. 4. The image data coloring support apparatus according to claim 3, wherein: It has device display data storage means for storing a plurality of execution display device characteristic data, selecting execution display device characteristic data based on target device designation information input from the outside, and outputting the selected data to the execution display device emulation means. The image data coloring support apparatus according to any one of claims 1 to 4, wherein: A creation display device emulation step of inputting color sample data and created display device characteristic data, emulating display by the created display device, and outputting created display device color sample data,
Entering the color sample data and execution display device characteristic data, an execution display device emulation step of emulating the display by the execution display device and outputting the execution display device color sample data,
A color reproducibility difference detecting step of inputting the created display device color sample data and the execution display device color sample data, calculating a chromaticity difference, and outputting chromaticity difference information. How to help. An image data coloring support program for causing a computer to execute each step of the image data coloring support method according to claim 6.

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