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Watermark extraction method and device, storage medium and electronic equipment

A technology of watermark extraction and electronic equipment, applied in the field of video processing, can solve problems such as easy to be erased, poor effect, not robust enough, and achieve strong robustness and effective copyright protection

Active Publication Date: 2021-10-22
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the above methods, there are defects that are easy to be erased and not robust enough, so the effect is not good

Method used

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  • Watermark extraction method and device, storage medium and electronic equipment
  • Watermark extraction method and device, storage medium and electronic equipment
  • Watermark extraction method and device, storage medium and electronic equipment

Examples

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Embodiment Construction

[0073] In order to enable ordinary persons in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.

[0074] It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consi...

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Abstract

The invention relates to a watermark extraction method and device, a storage medium and electronic equipment, and belongs to the field of video processing. The method comprises following steps: carrying out pixel block division on a target image to be subjected to watermark extraction; forming a group by every m pixel blocks in the divided pixel blocks; determining s groups belonging to the watermark embedding area in the obtained multiple groups; extracting one bit of watermark information in each group in the S groups; and combining the extracted S bits of watermark information to obtain a binary sequence of the watermark. For watermark extraction, a pixel block dividing and grouping mode consistent with a watermark adding process is adopted, and based on the watermark extraction process, one piece of bit watermark information of a binary sequence is embedded in each group of a watermark embedding region in a watermark embedding stage, so that not only is the space redundancy utilized, even if the embedded watermark is attacked, the correct watermark can be extracted in the watermark extraction stage.

Description

technical field [0001] The present disclosure relates to the technical field of video processing, and in particular to a watermark extraction method, device, storage medium and electronic equipment. Background technique [0002] Nowadays, there are many video producers on major video websites (also called video platforms). The videos produced and uploaded by these users are likely to be stolen by other users or other video websites. Therefore, there is an urgent need for a means of confirming copyright. To protect video producers and video websites. [0003] In related technologies, in order to protect the copyright of videos, the following methods are usually adopted: adding the LOGO (logo) of the video platform, the unique identification code of the video work, or the LOGO of the video producer himself at the corner position of the video screen Wait. For the above-mentioned methods, there are defects that are easy to be erased and are not robust enough, so the effect is ...

Claims

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Application Information

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IPC IPC(8): G06T1/00
CPCG06T1/0021G06T2201/0065
Inventor 章佳杰惠轶群郑云飞于冰
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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