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Image sharpening method and device, and storage medium

A technology of image sharpening and storage media, applied in the field of image processing, can solve the problems of poor image sharpening effect and prone to "jaggy" phenomenon, and achieve the effect of improving the "jaggy" phenomenon and image sharpening effect

Pending Publication Date: 2020-01-07
GUANGZHOU KUGOU TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, after using the above gradient algorithm to sharpen the image, the edge of the image is prone to "sawtooth" phenomenon, so the image sharpening effect is poor

Method used

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  • Image sharpening method and device, and storage medium
  • Image sharpening method and device, and storage medium
  • Image sharpening method and device, and storage medium

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Embodiment Construction

[0050]In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative work, all belong to the scope of protection of this application.

[0051] In the field of image processing, it is often necessary to sharpen images. At present, the traditional gradient algorithm is mainly used to sharpen the image, but the gradient algorithm is easy to cause "sawtooth" phenomenon on the edge of the image, and the image sharpening effect is poor. In the embodiment of the present application, the pixel to be sharpened is determined according to the original pixel value of the pixel to be sharpened, the original pixel...

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Abstract

The invention discloses an image sharpening method and a device, and a storage medium, and belongs to the field of image processing. The method comprises the following steps: for each to-be-sharpenedpixel point in an original image, obtaining an original pixel value of the to-be-sharpened pixel point and original pixel values of a plurality of neighborhood pixel points around the to-be-sharpenedpixel point; obtaining a target weight of each neighborhood pixel point relative to the pixel point to be sharpened; determining a sharpening pixel value of the to-be-sharpened pixel point according to the original pixel value of the to-be-sharpened pixel point, the original pixel values of the plurality of neighborhood pixel points and the target weights of the plurality of neighborhood pixel points; and sharpening each to-be-sharpened pixel point according to the sharpened pixel value of each to-be-sharpened pixel point in the original image to obtain a sharpened image. The image sharpeningeffect can be improved.

Description

technical field [0001] The present application relates to the field of image processing, in particular to an image sharpening method and device, and a storage medium. Background technique [0002] With the popularization of terminals such as mobile phones or tablet computers, more and more people use the terminals to take pictures, live broadcast or record short videos, etc. In order to improve the clarity of taking pictures, live broadcasting or recording short videos, it is often necessary to sharpen the image. [0003] At present, the traditional gradient algorithm is mainly used to sharpen the image. In the sharpening process, for each pixel to be sharpened in the image, the original pixel value of the pixel to be sharpened and the original pixel values ​​of the four neighboring pixels of the four neighbors of the pixel to be sharpened , determine the sharpened pixel value of the pixel to be sharpened according to the original pixel value of the pixel to be sharpened a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10004G06T2207/20024G06T2207/20192G06T5/73Y02P90/30
Inventor 吴文艺
Owner GUANGZHOU KUGOU TECH
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