JPH0540816A - Method and device for image processing - Google Patents

Abstract

PURPOSE:To easily recognize correspondence between each color by comprising the color reference information having the same color characteristics corresponding in 1:1 to the color to be printed out with the information of the color to be printed out. CONSTITUTION:When the screen display of color data and an image processing print output the color data are performed, the color data are displayed on an image 31, the arbitrary picture element of the color data displayed on the image 31 is designated by a mouse, and the color components of the designated picture element is checked. The information of the color to be print outputted corresponding to the color components of the checked picture element is displayed on the image 31, the color reference information having the same color characteristics corresponding in 1:1 to the color to be print outputted is compared with the information of the displayed color to be outputted. Thus, the correspondence between the color to be displayed on the screen 31 and the color to be print outputted can be recognized and the correct color to be used in print outputting the color data can be easily known.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing method and an apparatus thereof, and more particularly to an image processing method and an apparatus thereof capable of handling color data.

[0002]

2. Description of the Related Art Conventionally, in this type of device, in order to show color information of one pixel of color data read and created by a scanner, a window is created on a CRT screen and a target is stored in the window. The pixel is displayed in a larger color, or the ratio of the three primary colors of the RGB components, which are the constituent elements of that color, is displayed.

[0003]

However, in the above-mentioned conventional example, the color created by the ink of the printer does not completely match the color displayed on the CRT screen, and the RGB
There is a problem that it is not possible to judge whether the color is really drawn by the user because it is not clear what kind of color is actually displayed even if the ratio is displayed.

The present invention has been made in view of the above-mentioned conventional example, and an object of the present invention is to provide an image processing method and an apparatus therefor capable of easily recognizing a correspondence relationship between a color displayed on a screen and a color printed out. I am trying.

[0005]

In order to achieve the above object, the image processing method of the present invention comprises the following steps. That is, in a screen display of color data and an image processing method of printing out the color data, a step of displaying the color data on the screen and designating an arbitrary pixel of the color data displayed on the screen A step, a step of examining a color component of the pixel designated by the step, and a step of displaying on the screen information of a color to be printed out corresponding to the color component of the pixel examined by the step, The color reference information having the same color characteristics as the one-to-one correspondence with the printed color, and the step of comparing the printed information of the color displayed by the step. An image processing method is provided.

According to another aspect of the invention, there is provided an image processing device capable of displaying color data on a screen and printing out the color data, the first display means displaying the color data on the screen. A printing means for printing out the color data, an instructing means for instructing an arbitrary pixel of the color data displayed on the screen, and an analyzing means for examining a color component of the pixel designated by the instructing means. Second display means for displaying on the screen information on the color to be printed out corresponding to the color component of the pixel examined by the analyzing means, and the printout displayed by the second display means. In order to know the print color from the color information, the color reference information having the same color characteristics corresponding to the color output by the printing means is provided. An image processing apparatus according to.

[0007]

With the above arrangement, the present invention displays the information of the color to be printed when the color displayed on the screen is printed out, and has the same color characteristics corresponding to the printed color. It operates so that it can be compared with the color reference information having.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[Outline of System Configuration (FIG. 1)] FIG. 1 is a block diagram showing the configuration of an image processing system which is a typical embodiment of the present invention. In FIG. 1, reference numeral 1 is a system bus, and each component described later is connected to the system bus 1. Reference numeral 2 is a CPU for performing various processes, and 3 is a program memory (hereinafter referred to as PMEM). CPU2
Then, for example, an editing processing program as shown in the flowchart of FIG. 6 is appropriately selected and read from the hard disk 15 and executed. The data input from the keyboard 9 is stored as code information in the PMEM which is also a text memory.

Reference numeral 4 is an image memory (hereinafter referred to as IMEM), 5 is a color image scanner, 6 is an image input / output control unit, and 7 is a color printer.
The image data read from Sukiana 5 is IMEM4.
After being expanded to VRAM11, color C
Displayed on RT13.

The print image is expanded on the IMEM 4 and then output to the color printer 7 under the control of the image input / output control unit 6. An input control unit 8 connects an input device such as a keyboard 9 and a pointing device 10 (hereinafter referred to as PD). The operator operates the keyboard 9 to issue operation commands for the system.

The PD 10 is for selecting and instructing image information on the CRT 13 screen, and a mouse is used in this embodiment. As a result, the mouse cursor on the CRT 13 is arbitrarily moved in the X and Y directions to select the menu,
Select and edit image data and graphic data. 11 is a video image memory (hereinafter referred to as VRAM), 12
Is a display output control unit, and 13 is a color CRT. The data displayed on the color CRT 13 is expanded on the VRAM 11. For example, in the case of graphic data, a graphic pattern corresponding to its position and attribute information is developed on the VRAM 11, and it is possible to directly generate and display a cursor in the display area of the VRAM 11 by software control. Reference numeral 14 is an external storage device controller, 15 to 16 are disks for data files, and 15 is a hard disk (hereinafter,
16 is a floppy disk (hereinafter, referred to as FD).

[Outline of Color Sample Book (FIG. 2)] FIG. 2 is a diagram showing an example of the color sample book used in the system of this embodiment. The color sample book is a document composed of a plurality of pages showing the relationship between the color samples printable by the color printer 7 of the present system and the corresponding color numbers,
Only the number of colors that can be printed by the color printer 7 or a part of the number of colors that can be printed is prepared. In FIG. 2, 21 is one page with a color sample book, 22 to 25 are color samples printed by the color printer 7 as color samples, and 26 to 29 are color samples 22 to 22 respectively.
25 is a color number corresponding to 25. The swatch book is provided as a document attached to the system. The color sample book may be output by the color printer 7 of the present system, or if the color output characteristics of the color printer 7 are the same as those of other printers or printing devices. May be used.

[Explanation of System Operation (FIGS. 3 to 6)] Here, regarding the color designation processing executed by the system having the above-described configuration, the window display screens shown in FIGS. 3 to 5 and FIG.
This will be described with reference to the flowchart shown in FIG. First, in step S1, HD15, FD16, or
The color image data is read from the color image scanner 5 and the color image data is displayed on the color CRT 13. FIG. 3 is a diagram showing the state at this time. In FIG. 3, a color data display window 32 is generated on the display screen 31 of the color CRT 13, and the color image data 33 read by the color image scanner 5 is displayed in the window 32.

Next, in step S2, the mouse cursor 41 is moved to the pixel for which the color number is to be known from the color image data 33 displayed by operating the mouse 10, and this is selected. FIG. 4 is a diagram showing the state at this time. In FIG. 4, the mouse cursor 41 is moved to a certain position (a pixel whose color number is to be known) in the color image data 33 on the color data display window 32.
It is shown that the beating is being done.

In step S3, first, the RGB components of the pixel picked by the mouse 10 in step S2 are checked. For example, if the color CRT 13 is a full color display, each pixel is represented by 8 bits (256 steps) for each RGB component. RG
When the information of the B component is analyzed, the hard disk 1 of the present system corresponds to the color sample book described with reference to FIG.
5 or the color sample book reference table stored in the PMEM 3 is read out to find out which color number the analyzed RGB component corresponds to. Finally, the color number corresponding to the color of the pixel designated in the retrieved step S2 is displayed. FIG. 5 is a diagram showing the state at this time. In FIG. 5, the color number of the pixel designated in step S2 is displayed in the color number display window 51 on the display screen 31. The color sample book reference table described here is a logical table showing the relationship between each color number and the RGB component published in the color sample book.

In step S4, it is subsequently determined whether or not it is desired to display the color numbers of other pixels. here,
If it is determined that the color numbers of other pixels are not displayed, the process ends. On the other hand, if it is determined that the color number of another pixel is to be displayed, the process proceeds to step S.
Go to 5. At step S5, the color number display window 51 displayed at step S3 is erased, and at step S2.
Return to and continue processing. If the color number of the desired pixel is obtained in this way, the color actually printed by the color printer 7 can be obtained by examining the color sample book described with reference to FIG. 2 later using that color number as a key. Can know.

Therefore, according to this embodiment, it is possible to easily know what color each pixel displayed on the screen will have when it is actually printed by a color printer.

In this embodiment, the case where the color number of one pixel of color image data is displayed has been described, but the present invention is not limited to this, and for example, color graphic data and color character data. Needless to say, it can be applied because it can display color numbers such as.

Further, in the present embodiment, the series of operations is described as being performed using the pointing device, but the present invention is not limited to this. For example, a series of operations may be performed from the keyboard.

The present invention may be applied to a system composed of a plurality of devices or may be applied to an apparatus composed of one device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus. Further, it goes without saying that it can be applied to a system in which processing is performed via a network such as LAN.

[0022]

As described above, according to the present invention, there is an effect that it is possible to easily know what color is printed when color data is printed and an accurate color.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an image processing system that is a typical embodiment of the present invention.

FIG. 2 is a diagram showing an example of a color sample book.

[Figure 3]

[Figure 4]

FIG. 5 is a diagram showing a state of a color data display window associated with color designation processing.

FIG. 6 is a flow chart showing a color designation process.

[Explanation of symbols]

 1 system bus 2 CPU 3 PMEM 4 IMEM 5 color image scanner 6 image input / output control unit 7 color printer 8 input control unit 9 keyboard 10 mouse 11 VRAM 12 display output control unit 13 color CRT 14 external storage control unit 15 hard disk 16 floppy Disk

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication H04N 1/40 D 9068-5C 1/46 9068-5C

Claims (2)

[Claims] 1. A screen display of color data and an image processing method for printing out the color data, the step of displaying the color data on the screen, and an arbitrary pixel of the color data displayed on the screen. A step of designating the color component of the pixel designated by the step, and displaying on the screen information of a color to be printed out corresponding to the color component of the pixel examined by the step. And a step of comparing the color reference information having the same color characteristic corresponding to the printed color with the one-to-one correspondence, and the information of the printed color displayed by the step. Characterized image processing method. 2. An image processing apparatus capable of displaying color data on a screen and print-outputting the color data, comprising: first display means for displaying the color data on the screen; and printing the color data. Printing means for outputting; instructing means for instructing an arbitrary pixel of the color data displayed on the screen; analyzing means for examining the color component of the pixel designated by the instructing means; Second display means for displaying on the screen information on the color to be printed out corresponding to the color component of the pixel, and the print color based on the information on the color to be printed out displayed by the second display means. In order to know the information, the image processing apparatus is characterized in that it has color output information by the printing means and color reference information having the same color characteristics in a one-to-one correspondence. ..