Method and device for detecting green screen image

A green screen and image technology, applied in the field of image processing, can solve problems such as low efficiency in identifying green screen images, failure to recognize green screen images in time, and affecting user video viewing experience, etc.

Active Publication Date: 2020-02-21
ALIBABA (CHINA) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]However, this method cannot identify videos with green screen images in time, but requires the user to watch the green screen images and feed back prompt information, to identify videos that contain green screen footage
Obviously, this method has low efficiency when recognizing green screen images, and will affect the user's video viewing experience

Method used

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  • Method and device for detecting green screen image
  • Method and device for detecting green screen image
  • Method and device for detecting green screen image

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described The embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the implementations in this application, all other implementations obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

[0017] This application provides a method for detecting green screen images. The method can be applied to a server of a video playback platform, and can also be applied to an independent device with image processing functions. See figure 1 with figure 2 , The method may include the following steps.

[0018] S1: Obtain a target image to be pro...

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Abstract

The embodiment of the invention discloses a method and a device for detecting a green screen image, and the method comprises the steps: obtaining a to-be-processed target image in a currently played target video, and dividing the target image into a specified number of sub-blocks, wherein pixel points in the target image are represented by a first component, a second component and a third component; respectively determining a first component value, a second component value and a third component value with highest distribution in the sub-blocks, and respectively calculating distribution proportions of the first component value, the second component value and the third component value in the sub-blocks; based on the first component value, the second component value and the third component value, judging whether the sub-block is a green screen sub-block or not; and counting the total number of the green screen sub-blocks in the target image, and if the total number is smaller than or equal to a specified threshold, judging that the target image is not a green screen image. According to the technical scheme provided by the invention, the detection efficiency of the green screen image can be improved.

Description

Technical field [0001] This application relates to the field of image processing technology, and in particular to a method and device for detecting green screen images. Background technique [0002] With the continuous development of video playback technology, a large number of video playback platforms have emerged. The user client can pull the video stream from the video playback platform, and play the corresponding video content after decoding the video stream. However, some video images may be displayed abnormally in the decoded video images. Currently, a relatively common abnormal video picture is a green screen picture. In the green screen picture, most of the display color is green, which makes it impossible to identify the actual content in the picture. [0003] Currently, videos with green screens are usually processed based on user feedback during the process of watching videos. For example, when a user is watching a loaded video, if there is a green screen in the video...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/90G06T7/11G06T7/136
CPCG06T7/90G06T7/11G06T7/136G06T2207/20021
Inventor 赵明菲张磊彭俊
Owner ALIBABA (CHINA) CO LTD
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