Method and device for carrying out illumination equalization processing on scene image, computer device and computer storage medium

A scene image and equalization technology, applied in the field of image processing, can solve the problems such as difficult to eliminate shadows and poor local adjustment effects, and achieve the effects of solving shadows, facilitating practical application and promotion, and solving uneven illumination

Inactive Publication Date: 2019-12-13
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor local adjustment effect and difficult to eliminate shadows existing in the current image illumination equalization method, the purpose of the present invention is to provide a method, device, computer equipment and computer storage medium for performing illumination equalization processing on scene images

Method used

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  • Method and device for carrying out illumination equalization processing on scene image, computer device and computer storage medium
  • Method and device for carrying out illumination equalization processing on scene image, computer device and computer storage medium
  • Method and device for carrying out illumination equalization processing on scene image, computer device and computer storage medium

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Experimental program
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Embodiment 1

[0059] Such as Figure 1~2 As shown, the method for performing illumination equalization processing on a scene image provided in this embodiment may, but is not limited to, include the following steps S101 to S105.

[0060] S101. Acquire a scene image to be processed.

[0061] In the step S101, the scene image may be, but not limited to, an on-site image including a target obtained by an imaging system, and the acquisition method may be but not limited to a conventional method such as importing.

[0062] S102. Calculate the brightness average μ of the scene image according to the following formula:

[0063]

[0064] In the formula, M is the total number of horizontal pixels of the scene image, N is the total number of vertical pixels of the scene image, I(x, y) is the input brightness value of the pixel point (x, y), and x is the pixel point The abscissa of (x, y), y is the ordinate of the pixel (x, y).

[0065] In the step S102, the input brightness value is the brightn...

Embodiment 2

[0089] Such as image 3 As shown, this embodiment provides a device for implementing illumination equalization processing on scene images described in Embodiment 1, including an image acquisition module, a brightness average calculation module, a correction coefficient calculation module, a brightness correction processing module and Image output module;

[0090] The image acquisition module is used to acquire scene images to be processed;

[0091] The brightness average calculation module is used to calculate the brightness average μ of the scene image according to the following formula:

[0092]

[0093] In the formula, M is the total number of horizontal pixels of the scene image, N is the total number of vertical pixels of the scene image, I(x, y) is the input brightness value of the pixel point (x, y), and x is the pixel point The abscissa of (x, y), y is the ordinate of the pixel (x, y);

[0094] The correction coefficient calculation module is used to calculate th...

Embodiment 3

[0103] Such as Figure 4 As shown, this embodiment provides a computer device that applies the method for performing illumination equalization processing on scene images described in Embodiment 1, including a memory and a processor connected by communication, wherein the memory is used to store computer programs, and the The processor is configured to execute the computer program to implement the method steps of performing illumination equalization processing on the scene image as described in the first embodiment.

[0104] The working process, working details and technical effects of the computer device provided in this embodiment can be referred to Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to the technical field of image processing, and discloses a method and a device for carrying out illumination equalization processing on a scene image, a computer device and a computer storage medium. The invention provides an adaptive correction and improvement scheme for pixel point brightness on the basis of a classic Gamma correction method. According to the method, adaptive equalization processing can be performed on illumination of the scene image globally and locally, namely, the contrast of the image can be adaptively improved according to the local and global comparison relationship, the purposes of effectively solving the problems of uneven illumination, shadows and the like in the image can be achieved, and actual application and popularization are facilitated.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method, a device, a computer device and a computer storage medium for performing illumination equalization processing on a scene image. Background technique [0002] At present, the application fields of mobile robots are very wide, and most of the application fields are located in outdoor scenes. Therefore, for the scene images obtained by the imaging system carried by the mobile robot and containing the target, there are usually defects due to factors such as backlight, backlight, side light, and optical path occlusion. The resulting images are overall too bright, overall too dark, partly too bright and too dark, and local unevenness, etc., which have adverse effects on the extraction of feature points, target representation, and subsequent target recognition and tracking. Therefore, before performing target recognition and tracking on the scene image, it...

Claims

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Application Information

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IPC IPC(8): G06T5/40G06T7/90G06T5/00H04N9/64
CPCG06T5/40G06T7/90H04N9/64G06T2207/10024G06T2207/20008G06T2207/30168G06T5/92G06T5/77
Inventor 邓豪张华刘桂华徐锋邓鑫
Owner SOUTHWEAT UNIV OF SCI & TECH
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