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Method and system for improving video image definition

A technology of video image and definition, applied in the parts of TV system, image communication, parts of color TV, etc., can solve the problems of single algorithm and unachievable effect, etc.

Active Publication Date: 2014-09-24
BEIJING BAOFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the traditional image enhancement method generally has a single algorithm, such as enhancing brightness, enhancing contrast, enhancing chroma, etc.
The image has been enhanced to a certain extent, but it has not yet achieved an ideal effect

Method used

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  • Method and system for improving video image definition
  • Method and system for improving video image definition
  • Method and system for improving video image definition

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Embodiment 1

[0093] The method of the present invention will be specifically described below using an example, but the protection scope of the present invention will not be limited.

[0094] First, during video playback, for the same video file, its video width and height are fixed. However, when it is displayed to the viewer, due to the real-time size change of the playback window (such as full-screen state and non-full-screen state), the width and height of the video seen by the viewer change dynamically.

[0095] Because the width and height of the image are larger, the image data information stored is more, and the more information, the better the effect of the enhancement process. Therefore, before the enhancement process, preferably, according to the original width and height of the video (i.e. The width and height of the current video image, represented by width_src and height_src respectively) and the final width and height seen by the viewer (that is, the width and height of the t...

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Abstract

The invention discloses a method and a system for improving video image definition, and relates to the technical field of video image processing. The method comprises the following steps of: S1, sampling a current video image to extract an average pixel value of the pixel points in the current video image; S2, traversing each pixel point in the current video image, and performing texture enhancement processing on a preset number of other pixel points on the periphery of each pixel point to obtain a pixel value of each pixel point which is subjected to the texture enhancement processing; and S3, performing color enhancement processing on the average pixel value and the pixel value of each pixel point which is subjected to the texture enhancement to obtain the pixel value of each pixel point which is subjected to the color enhancement, and outputting the current video image which is subjected to the color enhancement. By the method and the system, the texture and the color of the video image are processed respectively, so that the definition of the video image is improved.

Description

technical field [0001] The invention relates to the technical field of video image processing, in particular to a method and system for improving the definition of video images. Background technique [0002] In the field of video playback, improving the quality of video images has always been the goal that everyone is pursuing, but for the current technology, it is impossible to overcome the real-time processing and enhance the details of the video image to better meet the visual characteristics of the human eye. Therefore, the video image enhancement technology is more and more prominent in the development of the video playing field. [0003] Traditional image enhancement methods are divided into two categories: one is to directly perform calculations on the pixel gray values ​​that make up the image, such as nonlinear transformation of gray, equalization processing, etc. The other is to transform the image in the frequency domain first, then perform spectrum analysis oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64H04N9/68H04N5/208
Inventor 孙冰晶刘江黄森堂
Owner BEIJING BAOFENG TECH