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A Color Constant Color Image Definition Enhancement Method

A color image and color constant technology, applied in the field of image processing, can solve the problems of insufficient clarity of color images, color distortion, etc., to achieve the effect of ensuring calculation effect, reducing the amount of calculation, and good definition enhancement effect

Active Publication Date: 2019-06-28
深圳市和天创科技股份有限公司
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Problems solved by technology

[0006] The present invention aims to solve the problem that the existing color image is prone to lack of definition and the problem of easy color distortion in the process of enhancing the definition, and provides a color image definition enhancement method with constant color

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  • A Color Constant Color Image Definition Enhancement Method
  • A Color Constant Color Image Definition Enhancement Method
  • A Color Constant Color Image Definition Enhancement Method

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] The present invention mainly comprises the following steps:

[0039] (1) Calculate brightness image

[0040] The brightness of the image reflects the overall brightness of the image. In various color spaces, there are methods to calculate the brightness image. Here, the simplest method is used to calculate the average value of the three bands of the color image:

[0041] I=(R+G+B) / 3

[0042] Among them, R, G, and B are the red, green, and blue bands of the image, respectively.

[0043] (2) Calculate neighborhood mean image and neighborhood standard deviation im...

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Abstract

A method for enhancing the clarity of color images with constant color, including calculating the brightness image based on the three bands of red, green and blue of the image; setting the neighborhood radius, calculating the mean and standard deviation of the brightness image in each pixel neighborhood, and obtaining the neighborhood Domain mean image and neighborhood standard deviation image; adaptively calculate the weight of each pixel based on the neighborhood mean image and neighborhood standard deviation image; recalculate a new brightness image based on the neighborhood mean image and weight; based on color constancy Based on the principle of nature, based on the new brightness image and the original brightness image, the three bands of the original image are enhanced year-on-year to obtain a sharpness enhancement result image with constant color. The method of the present invention can greatly improve the clarity of the image while reducing color distortion as much as possible, maintaining color constancy, and effectively improving the visual effect of the enhanced image.

Description

technical field [0001] The invention belongs to the technical field of image processing, in particular to a color image definition enhancement method with constant color. Background technique [0002] Due to the wide use of color imaging equipment in digital equipment, multimedia, biomedicine and the Internet, color image processing technology has attracted more and more attention. Due to the constraints of various factors or conditions, the quality of the obtained color image may be unsatisfactory, and the image is blurred and the definition is not high. Therefore, before the subsequent image processing, it is often necessary to enhance the color image to provide effective feature information, or improve its quality to obtain pleasing visual effects. [0003] Color images are composed of grayscale images, and the purpose of color image enhancement can be achieved through the enhancement of grayscale images. The main methods of grayscale image enhancement, such as: contras...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/20004G06T2207/10024G06T5/73
Inventor 李勤俭陈勇陈波胡诗帅
Owner 深圳市和天创科技股份有限公司
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