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Method and device for adjusting pixel brightness and electronic equipment

A technology for adjusting pixels and pixels, which is applied in the field of image processing, can solve problems such as low brightness and reduced light quantity, and achieve the effect of eliminating vignetting

Inactive Publication Date: 2020-11-17
BEIJING HORIZON ROBOTICS TECH RES & DEV CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0002] Due to the optical characteristics of the lens, the amount of light at the focal plane away from the optical axis will decrease, resulting in vignetting phenomena such as normal brightness in the center of the image and low brightness around the image.

Method used

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  • Method and device for adjusting pixel brightness and electronic equipment
  • Method and device for adjusting pixel brightness and electronic equipment
  • Method and device for adjusting pixel brightness and electronic equipment

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Embodiment Construction

[0036] Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here.

[0037] Application overview

[0038] As mentioned above, due to the influence of the optical characteristics of the lens, vignetting phenomenon such as normal brightness in the center of the image and low brightness around the image often occurs. In the actual application of the image, whether the image brightness is uniform, that is, whether the image has vignetting, will directly affect the result of image processing. For example, in intelligent driving applications, if the image has dark corners, the accuracy of image processing results such as obstacle...

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Abstract

The invention discloses a method and device for adjusting pixel brightness and electronic equipment. According to one embodiment of the invention, the method for adjusting the pixel brightness can comprise the steps: determining a color temperature value of a to-be-corrected image; determining a correction parameter of a predetermined image partition in the to-be-corrected image according to the color temperature value; calculating a gain value of a pixel according to the correction parameter and a position parameter of the pixel in the predetermined image partition; and adjusting the brightness of the pixel by using the gain value. According to the embodiment of the invention, the dark corner in the image can be eliminated more efficiently and accurately.

Description

technical field [0001] The present application relates to image processing technology, in particular to a method and device for adjusting pixel brightness and electronic equipment. Background technique [0002] Due to the optical characteristics of the lens, the amount of light at the focal plane away from the optical axis will decrease, resulting in vignetting phenomena such as normal brightness in the center of the image and low brightness around the image. In some applications, it is desirable to remove vignetting in images. Contents of the invention [0003] In order to solve the above technical problems, it is expected to provide a method and device for adjusting pixel brightness, and electronic equipment, which can more efficiently and accurately eliminate vignetting in images. [0004] According to one aspect of the present application, a method for adjusting pixel brightness is provided, comprising: [0005] Determine the color temperature value of the image to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/73H04N9/77
CPCH04N9/73H04N9/77H04N23/88
Inventor 周兰许译天
Owner BEIJING HORIZON ROBOTICS TECH RES & DEV CO LTD
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