JPH02162467A - Picture processing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image processing method suitable for modifying and correcting image data in an image processing system.

[Conventional technology]

Conventionally, when making corrections or corrections to color image data imported from an input device such as an image scanner, the image data stored in an external file device is displayed on a display via a graphic display device, and the image data is displayed on a display using a mouse, etc. Instruct the correction part using the input device, search the external file for the image data corresponding to the position information on the display input from the input device, change the image data, and then redisplay it on the display for confirmation. how to,
There is a method of setting a fill color in advance and moving an input device such as a mouse to fill in the trajectory of the mouse movement via a graphic display device.

The former method has the disadvantage that correction work takes time, while the latter method requires detailed color correction in relation to the image data of one rotation in order to fill uniformly with the set fill color.
There was a problem with the usability of the correction.

[Problem to be solved by the invention]

Work such as correcting and correcting image data must be performed using means that emphasize man-machine interfaces that can be performed while looking at the display.

The conventional methods described above do not take into consideration the operability of data correction and correction operations.

An object of the present invention is to realize improved operability by correcting and correcting image data within a graphic control device using image data developed in an image memory.

[Means to solve the problem]

The above purpose is to set a fixed area or a free area for the image position on the display specified by an input device such as a mouse, and to perform digital correction processing on the image data to be corrected or modified. achieved.

[Effect]

A case in which it is necessary to make corrections or corrections to an image displayed on a display occurs when there is color discontinuity in the image display, for example, when the color tone is extremely different, or when pixels are missing. By moving the cursor to specify the position where you want to correct or correct the image data and setting the area,
By comparing the color information of each pixel in the area, the pixel to be modified or corrected can be easily detected, and the color information correction or correction process for the target pixel is performed based on the color information of the pixels in the area. Easy to do.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 2, the image memory 7 is a memory that corresponds 1:1 to the display area of the display 8.
For one pixel, the image memory 7 has a memory capacity of n bits to store data of each color component of R, G, and B.
For example, if the data for each R, G, and B component is 4 bits,
It is possible to express 4o96 colors on the display.

In FIG. 2, the image memory 7 stores five pieces of color information.

Here, the present invention will be described in detail with respect to data missing in two places in the tree image represented by the image data value 5 shown in FIG.

In the hardware configuration shown in FIG. 1, the input device mouse 9 is used to move the cursor to the position where data of the tree image is missing. The coordinate position data (x, y) on the display input with the cursor is input to the graphic control device 6.
captured by.

The graphic control device 6 sets an area centered on the input coordinate data (X, Y) on the display. The area set here is set to a size that takes operator operability into consideration. Here, the input coordinate data (x, y
) is set as a 3×3 pixel area. Figure 4(a)~
In Fig. 4(b), 3 for coordinate data (x, y)
The graphics control device 6 takes in the pixel information (color components) of the x3 pixel area A.

From the captured pixel information of pixel area A, the pixel position where discontinuous pixel information (color information) is stored is determined.

Here, discontinuous pixel information can be easily obtained by setting a range for each color component data, for example by performing a range check of ±1.

Data correction for the obtained discontinuous pixels is obtained by shading correction using pixel information (color information) of each of the four vertices of area A, and the graphics control device 6 corrects the data for the discontinuous pixels in one image memory 7. Write in the digit @ (X, Y).

Through the above-described processing, data correction for missing data in the image data on the display 8 is performed, and the corrected image is reproduced on the display.

All the image data that has been corrected and confirmed on the display and stored in the image memory 7 is transferred to the file device 4 and updated.

In addition, when it is desired to further correct the color of the corrected pixel, there is a means for applying color correction bias values to the four vertices of the pixel area, for example, displaying guidance for each apex of the pixel area A on the display. Then manually set the bias value. Alternatively, by inputting a bias value for color correction by operating the valuator display, correction information to which the bias value has been added is written to the pixel to be corrected.

〔Effect of the invention〕

According to the present invention, since correction and correction of image data inputted by an image scanner device can be performed more dynamically than by operating a mouse while looking at a display screen, it is possible to realize a significant improvement in operability.

[Brief explanation of the drawing]

1 to 4 are diagrams showing embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... CPU, 2... Main memory, 3... Input control device, 4... Image scanner device, 5... File device. 6... Graphic control device, 7... Image memory,
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Claims (1)

[Claims] 1. In an image processing system, when image data read from an input device such as an image scanner is reproduced and displayed on a display, the image position is specified and a rectangular area is specified by moving a cursor by operating an input device such as a mouse. reading out image data within the rectangular area from the image memory, detecting pixels to be corrected in which discontinuous image data is stored, and correcting the pixels to be corrected from the image data within the area. An image processing method characterized by having means for generating data and rewriting it into an image memory. 2. An image processing system characterized by comprising means for correcting image data on an image memory and transferring the corrected image data on the image memory to an external file device. 3. An image processing method characterized by comprising means for applying a correction bias to pixels to be corrected.