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Image enhancement method and device and server

A technology for image enhancement and image training, applied in the field of image processing, can solve the problems of sharpening the edges of text areas and affecting the overall visual effect of the image, so as to avoid excessive enhancement and improve the overall visual effect

Pending Publication Date: 2021-05-04
BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD +1
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The image enhancement method in the related art generally enhances all regions of the image to the same degree; compared with the image background, the edge gradient of the text in the image changes more drastically, therefore, this method performs the same degree of enhancement on all regions of the image. The enhancement method can easily cause the edge of the text area to be too sharp and affect the overall visual effect of the image

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  • Image enhancement method and device and server
  • Image enhancement method and device and server
  • Image enhancement method and device and server

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Embodiment Construction

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] With the development of intelligent high-definition technology, video processing technology based on image analysis is more and more widely used in actual video processing tasks. For example, in the task scene of a show live broadcast, analyzing the anchor characters in the video, analyzing the text area in the video, etc., are all conducive to the processing of video compression, image quality improvement, and image quality restoration. Image enhancement in related technologies usually adopts a global image enhan...

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Abstract

The invention provides an image enhancement method and device and a server, and the method comprises the steps of firstly obtaining a to-be-processed video; then performing text detection on a plurality of video frames in the to-be-processed video to obtain a detection result; determining a text region of the plurality of video frames according to an overlapping degree of detection results between adjacent video frames in the plurality of video frames; performing image enhancement processing on the text areas in the plurality of video frames by adopting a first preset algorithm; performing image enhancement processing on areas except the text area in the plurality of video frames by adopting a second preset algorithm, wherein the first preset algorithm is matched with the text region. According to the invention, different algorithms are adopted to carry out different degrees of image enhancement on the text area and the non-text area in the video frame, so that the text area is prevented from being excessively enhanced, and the overall visual effect of the video image is improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image enhancement method, device and server. Background technique [0002] The image enhancement method in the related art generally enhances all regions of the image to the same degree; compared with the image background, the edge gradient of the text in the image changes more drastically, therefore, this method performs the same degree of enhancement on all regions of the image. The enhancement method can easily cause the edge of the text area to be too sharp and affect the overall visual effect of the image. Contents of the invention [0003] The purpose of the present invention is to provide an image enhancement method, device and server to improve the overall visual effect of video images. [0004] In the first aspect, an embodiment of the present invention provides an image enhancement method, the method comprising: acquiring a video to be processed; ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/34G06T5/00G06T7/11G06T7/187
CPCG06T7/11G06T7/187G06T2207/10016G06V20/41G06V10/267G06T5/00
Inventor 陈熊成超熊宝玉张海斌鲁方波汪贤
Owner BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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