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Image edge enhancement method and device and computer storage medium

A technology of image edge and enhancement device, which is applied in the field of image processing and can solve the problem of poor image edge enhancement effect

Active Publication Date: 2020-07-07
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem solved by the invention is that the effect of image edge enhancement is poor

Method used

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  • Image edge enhancement method and device and computer storage medium
  • Image edge enhancement method and device and computer storage medium
  • Image edge enhancement method and device and computer storage medium

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Embodiment Construction

[0049] In the prior art, in order to enhance the edge of the image, the usual method is to calculate the difference between adjacent pixels in some specific directions or the difference between pixels at intervals, take the direction of the maximum difference as the direction of the image edge, and then retain the direction edge information.

[0050] However, the above scheme is greatly affected by noise, and the effect of image edge enhancement is not ideal.

[0051] In the embodiment of the present invention, in the pixel neighborhood, according to the preset similarity between the brightness values ​​of each pixel point in each direction passing through the central pixel point; according to the regional brightness and similarity of the pixel neighborhood, determine the pixel Neighborhood image edge; perform weighted average calculation on the luminance values ​​of each pixel point on the image edge of the pixel neighborhood to obtain an enhanced luminance value; use the enh...

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Abstract

The invention discloses an image edge enhancement method and device and a computer storage medium. The method comprises: determining a pixel neighborhood taking an original pixel point as a central pixel point; in the pixel neighborhood, calculating the similarity between the preset brightness values of each pixel point in each direction passing through the central pixel point; determining an image edge of the pixel neighborhood according to the regional brightness and similarity of the pixel neighborhood; performing weighted average calculation on the brightness value of each pixel point on the image edge of the pixel neighborhood to obtain an enhanced brightness value; and taking the enhanced brightness value as the brightness value of the central pixel point. By adopting the scheme, theimage edge enhancement effect can be improved.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to an image edge enhancement method, device and computer storage medium. Background technique [0002] The edge of the image is the junction of the pictorial area and another attribute area, where the attribute of the area changes suddenly, and where the image information is most concentrated. During the imaging process of the image display device, affected by noise and denoising algorithms, the continuity of the obtained image in the edge area may be poor, and noise exists in the edge area. [0003] In the prior art, in order to enhance the edge of the image and thus enhance the continuity of the edge of the image, the usual method is to calculate the difference between adjacent pixels or the difference between pixels in some specific directions, and take the maximum difference The direction is the direction of the edge of the image, and then the edge information of this di...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/73
Inventor 马维维陈欢杨傲蒋彬张晓盟
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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