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Image color correction method and device

A color correction and image technology, applied in the field of image processing, can solve the problems of not considering the influence of light source, the result is not accurate enough, and the automation is not enough, so as to achieve the effect of excellent automation effect, accurate color correction parameters and good automation effect

Active Publication Date: 2021-05-25
HEFEI I TEK OPTOELECTRONICS CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The disadvantages of this current method are: first, the process of generating the matrix A of the shooting color card requires manual positioning or manual input of colors, which is not automatic enough, slow in speed and low in efficiency; second, the color difference used is not ciede 2000, and the obtained The result is not accurate enough; the third is that each picture needs to be corrected on the PC side, which is slow and not automatic enough
Fourth, the influence of the light source is not considered

Method used

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  • Image color correction method and device
  • Image color correction method and device

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Embodiment Construction

[0055] In order to further illustrate the features of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. The accompanying drawings are for reference and description only, and are not intended to limit the protection scope of the present invention.

[0056] Such asfigure 1 As shown, this embodiment discloses an image color correction method, including the following steps S1 to S4:

[0057] S1. Read the captured color card picture, and identify the color on the captured color card picture, and generate a color matrix A;

[0058] S2. Obtain the color matrix B generated by the color of the standard color card;

[0059] S3. Calculate the color correction matrix X according to the color matrix A and the color matrix B;

[0060] S4. Input the color correction matrix X to the camera, and the camera corrects the image during image processing.

[0061] It should be noted that the calculation process of the col...

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Abstract

The invention discloses an image color correction method and device, and belongs to the technical field of image processing, and the method comprises the steps: reading a shot color card picture, recognizing the color of the shot color card picture, and generating a color matrix A; acquiring a color matrix B generated by the color of the standard colorimetric card; calculating a color correction matrix X according to the color matrix A and the color matrix B; and inputting the color correction matrix X into a camera, and correcting the image by the camera in an image processing process. The method is good in automation effect and high in image correction efficiency.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image color correction method and device. Background technique [0002] Different light sources such as direct sunlight, indirect sunlight, incandescent bulbs, fluorescent bulbs, and halogen bulbs all have different spectral properties, that is, they contain different amounts of the various wavelengths of visible light (380nm to 760nm). The object will absorb part of the incident light and reflect it, and the reflected light of the object will be considered as the color of the object, that is to say, the color of the object will be affected by the incident light, that is, the light source. [0003] However, when the human brain processes colors, it will counteract the influence of continuous light source changes to a certain extent. The sensor of the camera obviously does not have this function, and the yellow object will not remain yellow under different lighting, b...

Claims

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Application Information

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IPC IPC(8): H04N9/69H04N9/73H04N5/232
CPCH04N9/69H04N23/80H04N23/88
Inventor 王中天邵云峰李子民
Owner HEFEI I TEK OPTOELECTRONICS CO LTD
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