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Adjustment card manufacturing method, system, color correction matrix debugging method and device

A technology of color correction and production method, applied in the direction of color signal processing circuit, image communication, electrical components, etc., can solve the problem that the color cannot be close to the color seen by the human eye, and achieve the effect of improving the debugging effect and the true color

Active Publication Date: 2016-08-03
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for making a 24-color adjustment card, a system, a method for debugging a color correction matrix, and electronic equipment, so as to solve the problem of restoring the color correction matrix debugged with the standard electronic file 24-color card diagram in the prior art. The color cannot be close to the color seen by the human eye

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  • Adjustment card manufacturing method, system, color correction matrix debugging method and device
  • Adjustment card manufacturing method, system, color correction matrix debugging method and device
  • Adjustment card manufacturing method, system, color correction matrix debugging method and device

Examples

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no. 1 example

[0037] Such as figure 1 As shown, the first embodiment of the present invention provides a method for making a 24-color adjustment card, and the method includes:

[0038] Step 101: Take a photo of a 24-color standard card in a preset photo environment to obtain a first image.

[0039] Wherein, the preset photographing environment is preferably an environment illuminated by a light box.

[0040] Step 102: Display the obtained first image on a preset standard display.

[0041] Wherein, the preset standard display is preferably a display with a color difference less than 0.5 and a saturation greater than 99% and less than or equal to 100%.

[0042] Step 103: Adjust the color blocks in the first image according to the 24-color standard card in the preset photographing environment, so that the color blocks are on the same level as the 24-color standard card in the preset photographing environment The colors of the corresponding color blocks are consistent, and a 24-color adjust...

no. 2 example

[0047] Such as figure 2 As shown, the second embodiment of the present invention provides a method for debugging the color correction matrix using the 24-color adjustment card produced by the production method described in the first embodiment above, the method comprising:

[0048] Step 201: Obtain the red, green and blue color RGB values ​​of the color blocks on the 24-color adjustment card, and save them as a target color matrix;

[0049] Among them, the 24-color adjustment card is arranged as a 4×6 color block matrix, and the color blocks in the last row are white, gray and black, but the brightness is different, so you can only obtain the RGB values ​​​​of the color blocks in the upper three rows, and correspondingly adjust the image to be adjusted. The RGB values ​​corresponding to the color blocks, that is, the target color matrix may be a 3×6 matrix.

[0050] Step 202: Obtain the RGB value of the color block on the image to be adjusted, and save it as a source color m...

no. 3 example

[0063] Based on the above-mentioned second embodiment, the method for debugging the color correction matrix of the 24-color adjustment card produced by the production method described in the above-mentioned first embodiment includes: obtaining the RGB values ​​of the color blocks on the 24-color adjustment card, and saving them as the target Color matrix; obtain the RGB value of the color block on the picture to be adjusted, and save it as a source color matrix; calculate and obtain the color correction matrix according to the target color matrix and the source color matrix; correct the source color matrix according to the color The matrix is ​​converted to obtain a sample picture; when the color block color on the sample picture is consistent with the color block color on the 24-color adjustment card, the color correction matrix is ​​saved as the target debugging result; in the sample When the color of the color blocks on the picture deviates from the color of the color blocks...

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Abstract

The invention provides a method for debugging a color correction matrix. The method comprises the steps of acquiring the RGB values of color blocks on a 24-color adjustment card and storing the acquired RGB values as a target color matrix; acquiring the RGB values of color blocks on a to-be-adjusted picture and storing the acquired RGB values as a source color matrix; calculating to obtain a color correction matrix according to the target color matrix and the source color matrix; converting the color correction matrix according to the source color matrix to obtain a sample picture; according to the sample picture and the 24-color adjustment card, debugging the color correction matrix. The invention also provides an electronic device corresponding to the above method for debugging the color correction matrix. The invention also provides a method and a system for manufacturing the above 24-color adjustment card. According to the method for debugging the color correction matrix, the color correction matrix is debugged based on the 24-color adjustment card manufactured according to the manufacturing method, so that restored colors are closer to colors seen by human eyes. Therefore, the debugging effect of the color correction matrix is improved.

Description

technical field [0001] The present invention relates to the technical field of color correction matrix debugging, and more specifically, to a method and system for making a 24-color adjustment card, a method for debugging a color correction matrix, and electronic equipment. Background technique [0002] At present, the cameras of smart phones mostly adopt the module of raw data RAWData format, which is transmitted to the mobile phone and then processed by the image processor ISP back-end to restore the color. Among them is a CCM (ColorCorrectionMatrix, color correction matrix) debugging process, which is a link that all platform manufacturers must go through. [0003] But at present, basically all mobile phone manufacturers, including platform providers, basically use a fixed electronic file 24-color card picture as the target when debugging CCM, take the RAW picture of the mobile phone, and then convert it; generate CCM parameters. [0004] This fixed electronic file has 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/60H04N9/67
CPCH04N1/6033H04N1/6077H04N9/67
Inventor 张成卫
Owner VIVO MOBILE COMM CO LTD
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