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Method and device for adding video watermark

A technology for video watermarking and watermarking, applied in the multimedia field, can solve the problems of prominent watermark images and affecting visual effects, etc.

Active Publication Date: 2021-08-06
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This application provides a video watermark adding method and device, which is used to solve the problem that the existing video watermark adding method directly adds a complete watermark at a fixed position, which is easy to be directly deducted or simply replaced by a color block; and the video is added The watermark image after watermark is more prominent, which affects the technical problems of visual effects

Method used

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  • Method and device for adding video watermark
  • Method and device for adding video watermark
  • Method and device for adding video watermark

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Embodiment Construction

[0038] This application provides a video watermark adding method and device, which is used to solve the problem that the existing video watermark adding method directly adds a complete watermark at a fixed position, which is easy to be directly deducted or simply replaced by a color block; and the video is added The watermark image after watermark is more prominent, which affects the technical problems of visual effects.

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative effor...

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Abstract

The present application discloses a video watermark adding method and device. The method includes: determining the watermark area of ​​each frame of video image in the video to be watermarked; calculating the image complexity of the watermark area of ​​each frame of video image; Image complexity, calculate the grayscale difference of two consecutive frames of video images; after obtaining the pre-stored watermark to be added from the memory DC, based on the grayscale difference of two consecutive frames of video images, the watermark to be added to the two consecutive frames of video images process, and add the processed watermark to the watermark area of ​​the corresponding video image to obtain the watermarked video, which solves the existing video watermark adding method by directly adding a complete watermark at a fixed position, which is easy to be directly Deduction or simple replacement with color blocks; and the watermark image after adding watermark in the video is more prominent, which affects the technical problems of visual effects.

Description

technical field [0001] The present application relates to the field of multimedia technology, in particular to a video watermark adding method and device. Background technique [0002] Watermark refers to the addition of certain digital or text information in data multimedia (such as video, documents, photos, etc.) to achieve the functions of document authenticity identification and copyright protection. At present, there are various methods for adding video watermarks, but all of them have certain deficiencies. The existing watermarking method is to directly add a complete watermark at a fixed position, which is easy to be deducted directly or simply replaced with a color block; and the watermark image after adding the watermark in the video is more prominent, affecting the visual effect. Contents of the invention [0003] This application provides a video watermark adding method and device, which is used to solve the problem that the existing video watermark adding meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/467H04N21/8358
CPCH04N21/8358H04N19/467
Inventor 刘雄伟
Owner GUANGDONG VTRON TECH CO LTD