Image enhancement method based on Hess matrix

An image enhancement, matrix technology, applied in image enhancement, image analysis, image data processing and other directions, to achieve the effect of short processing time, low economic cost and remarkable effect

Pending Publication Date: 2020-10-09
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

This method solves the problem of image enh

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  • Image enhancement method based on Hess matrix
  • Image enhancement method based on Hess matrix
  • Image enhancement method based on Hess matrix

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[0017] The technical solutions in the embodiments of the present invention will be described clearly and in detail below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention.

[0018] System flow chart such as figure 1 As shown, an image enhancement method based on Hess matrix includes the following steps:

[0019] Step 1: Use integral graph to quickly generate Hess matrix of input image at different scales, extend Hess matrix to fractional order, and use multi-scale fractional Hess matrix to process input image to generate feature weighted image;

[0020] The second step: suppress the feature value of the strong feature information pixel in the feature weighted image to obtain the background weighted image;

[0021] Step 3: Use the histogram of the background weighted image and the cumulative distribution function normalized by the histogram to obtain the mapping function;

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Abstract

The invention discloses an image enhancement method based on a Hess matrix, and relates to the technical field of digital image processing, computer vision and the like. The method comprises the following specific steps: 1) processing an input image by using a multi-scale fractional order Hess matrix to generate a feature weighted image; 2) inhibiting feature values of strong feature information pixels in the feature weighted image to obtain a background weighted image; 3) obtaining a final mapping function by using a histogram of the background weighted image and a cumulative distribution function formed after normalization of the histogram; 4, obtaining an enhanced image by using the mapping function. According to the method, the matlab is used as a platform for verification, related knowledge of the Hess matrix is combined, and the purpose of improving the image contrast ratio to achieve enhancement is achieved; the method has practical significance, and a good enhancement effect isachieved.

Description

technical field [0001] The invention relates to an image enhancement method based on a Hess matrix, belonging to the technical fields of digital image processing, machine vision and the like. Background technique [0002] Images are commonly used information carriers in human society. Studies have shown that the visual image information acquired by humans accounts for nearly 80% of the information received by humans. It can be seen that visual information is important to human beings, and images are the main way for human beings to obtain visual information. Since the 1960s, with the continuous improvement and popularization of computer technology, digital image processing has developed rapidly at home and abroad, and is widely used in scientific research, industrial and agricultural production, biomedical engineering, aerospace, military, industry, robot industry, etc. Fields are playing an increasingly important role in human life. [0003] In our daily life, we can use...

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/001G06T2207/10004G06T2207/10024
Inventor 肖斌宗旭阳毕秀丽李伟生
Owner CHONGQING UNIV OF POSTS & TELECOMM
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