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Image processing method and device, electronic equipment and computer readable storage medium

An image processing, grayscale image technology, applied in the field of image processing, can solve the problem of unable to process the image part, unable to clearly show the scene, etc

Pending Publication Date: 2021-06-22
O FILM IMAGE TECH (GUANGZHOU) CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, all of the above are designed for the overall image and cannot deal with local parts of the image. For example, the shadow of a building will cause the local area of ​​​​the image to be darker; the environment with poor light such as backlight cannot clearly show the scene, and the regional shadow of the image Correction and compensation technology is still blank

Method used

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  • Image processing method and device, electronic equipment and computer readable storage medium
  • Image processing method and device, electronic equipment and computer readable storage medium
  • Image processing method and device, electronic equipment and computer readable storage medium

Examples

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no. 1 Embodiment

[0173] See Figure 5 , Figure 5 is the color image to be compensated for local shading, that is, the first color image.

[0174] See Figure 6 , the image processing method of the present invention comprises:

[0175] S601, divide the first color image into 48 regions of interest, each region of interest includes four pixels;

[0176] S602, convert the first color image into a first grayscale image according to the conditional formula Y=0.299R+0.587G+0.114B, where Y represents the brightness value, R represents the red signal of the first color image, and G represents the first color The green signal of the image, B represents the blue signal of the first color image;

[0177] S603. Calculate the first brightness values ​​Y1 of the 48 regions of interest in the first grayscale image; wherein, the region of interest in the first grayscale image is the same as the region of interest in the first color image one-to-one correspondence;

[0178] Specifically, according to S6...

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Abstract

The invention provides an image processing method. The image processing method comprises the following steps: calculating a first brightness value of each region of interest of a first grayscale image; performing normalization processing on the first brightness value of each region of interest to obtain a second brightness value of each region of interest; performing brightness compensation on the second brightness value of the region of interest needing to be compensated according to a preset condition to obtain a third brightness value of each region of interest; and performing reverse normalization processing on the third brightness value of each region of interest to obtain a fourth brightness value and a second grayscale image. According to the image local shadow processing method, the process is simple, the local shadow of the image can be well compensated, and the situation that the image is locally blurred due to the local shadow of the image is improved. In addition, the invention further provides a processing device, electronic equipment and a computer readable storage medium.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method, device, electronic equipment and computer-readable storage medium. Background technique [0002] With the wide application and diversification of cameras, such as smartphones, professional digital cameras, car cameras, etc. People have also put forward better requirements for the imaging quality of photos. [0003] Existing image processing technologies are also being updated day by day, such as the most common lens shading / lens shading (lens shadings) compensation technology, which compensates shadows better for the center area of ​​the lens (lens) image than the edge area. Another example is whitening technology, which beautifies the overall image and improves the overall beauty of the image. Another example is sharpening technology, which improves the sharpness of the edge of the scene in the image. However, all of the above are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10024G06T2207/20104G06T5/94
Inventor 胡伟鹏吴华丽
Owner O FILM IMAGE TECH (GUANGZHOU) CO LTD
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