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Method and system for extracting and correcting color of color plate

A correction method and correction system technology are applied in the field of image processing to achieve the effects of improving stability and reliability, low hardware cost and clear structure

Inactive Publication Date: 2015-02-04
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method of manually obtaining the color value of a specific point has certain defects in accuracy and precision.

Method used

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  • Method and system for extracting and correcting color of color plate
  • Method and system for extracting and correcting color of color plate
  • Method and system for extracting and correcting color of color plate

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Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] Such as figure 2 As shown, the color plate color extraction and correction method provided by the present invention includes the following steps:

[0051] 1. Shooting of color image

[0052] Use the camera to shoot the color plate and digitize the image. When shooting, fill the entire image with the color plate image as much as possible.

[0053] 2. Color Quantization

[0054] Divide the color plate image according to the color block area of ​​the color plate, divide the image into N windows, the number of windows N is the number of color blocks in the color plate, each window contains n pixels, and count the color roughness of each window area Degree S is:

[0055] S = ( 1 n Σ i = 0 ...

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Abstract

The invention belongs to the technical field of image processing, in particular relates to a method and system for extracting and correcting the color of a color plate, used for image color correction. The method comprises the following steps: quantifying the color of a color plate image by utilizing an image segmentation technology so as to obtain seed regions; then merging the color information of the regions and the distance and adjacency among the regions through regional growth so as to automatically complete the segmentation of the color plate image; and detecting the average color value of all corresponding blocks of the color plate in a camera and using the average color value for color correction and the like. In of the method for extracting the color of the color plate, technologies such as a leaner edge detection technology and the like are not necessary to use, and the method has the advantage of simple and high-speed operation; in addition, the structure of a system module is clear, each part has definite function and high independence, thereby being beneficial to improvement of entire stability and reliability.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a color plate color extraction and correction method and system for image color correction processing. Background technique [0002] The color of the image captured by camera equipment is often not correct, and it needs to be corrected by mathematical methods, so the tool of color plate is needed. First take a picture of the color checker, calculate the average value of each color block, compare it with the standard value, and calculate the color matrix color matrix. The image of each frame is calculated as follows before output, and the purpose of color correction can be achieved. [0003] R G B = colorMatrix * r ...

Claims

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Application Information

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IPC IPC(8): H04N9/64
Inventor 卢晓鹏
Owner VIMICRO CORP
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