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Method and device for embedding watermark in video image

A technology for embedding watermarks in video images, applied in the field of video processing, can solve the problems of tampering and blocking of watermark logos

Active Publication Date: 2020-06-30
SUZHOU KEDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The watermark at a fixed position can easily be tampered with by video watermark removal software by altering or adding mosaics
Using a colored logo image to add to the meeting video causes the meeting video content in the logo coverage area to be blocked

Method used

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  • Method and device for embedding watermark in video image
  • Method and device for embedding watermark in video image
  • Method and device for embedding watermark in video image

Examples

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Embodiment Construction

[0054] Example embodiments will now be described more fully with the second accompanying drawing. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0055] In order to overcome the above defects in the prior art, the present invention provides a method and device for embedding a watermark in a video image.

[0056] see first figure 1 , figure 1 A flow chart of a method for embedding a watermark in a video image according to an embodiment of the present invention is shown. figure 1 A total of 4 steps are shown:

[0057] Step S110 is to create a watermark template according to ...

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Abstract

The invention provides a method and device for embedding watermarks into video images. The method comprises the steps of making watermark templates according to watermark information; determining constraint areas of center points in watermark embedding areas according to sizes of the video images and the sizes of the watermark templates, wherein the constraint areas are greater than the watermarktemplates, the watermark embedding areas are used for embedding the watermark templates, and the watermark embedding area match the watermark templates; for the video images, determining positions ofthe center points of the watermark embedding areas in the constraint areas, randomly moving the center points of the watermark embedding areas in the constraint areas based on a random vector j, and determining the positions of the watermark embedding areas in the video images according to the center points of the watermark embedding areas; and embedding the watermark templates into the watermarkembedding areas of the video images according to preset transparency. According to the method and the device provided by the invention, the video editing operation of watermark removing software can be effectively resisted, the watermark removing software is difficult to predict the watermark areas, and the watermark removing video editing operation of the watermark removing software is deactivated.

Description

technical field [0001] The invention relates to video processing, in particular to a method and device for embedding watermarks in video images. Background technique [0002] The function of identifying the source of the video can be realized by adding special patterns or information to the digital video, and the source of the video can be confirmed by checking the identification information during the subsequent distribution of the video. The information intentionally added to the digital video for tracing the source of the video is the digital watermark. [0003] In recent years, the technology of embedding digital watermark into digital video has developed rapidly, especially in the field of digital copyright protection of film and television works, digital watermark is widely used, but the existing video watermark technology is mainly concentrated in the field of digital copyright protection of video. The focus of this technology lies in the hiding ability and anti-tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/913H04N21/8358
CPCH04N5/913H04N21/8358H04N2005/91335
Inventor 谢志钢胡小鹏田丽平胡一凡万春雷陈冬根
Owner SUZHOU KEDA TECH
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