Watermark embedding method, device, equipment and computer-readable storage medium
A watermark embedding and storage medium technology, applied in computer security devices, computing, instruments, etc., can solve the problems of enlarging, shrinking, distorting or cutting, restoring watermark information, and low anti-interference ability of invisible watermarks, so as to improve anti-interference ability. ability, the effect of ensuring safety
Active Publication Date: 2021-01-19
GUANGZHOU DUOYI NETWORK TECH +2
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Problems solved by technology
[0004] In the process of implementing the present invention, the inventor found that in the prior art, when the type of digital watermark embedded in a multimedia file is an invisible watermark, it is difficult to restore the watermark information from the photo obtained by the cracker to remake the multimedia file. The anti-interference ability of watermark is low
When the type of digital watermark added to a multimedia file is a plaintext watermark, since ordinary plaintext watermarks usually discharge ciphertext horizontally, vertically or obliquely, with strong regularity, the cracker can reproduce the multimedia file from a specific angle. Avoid the watermark area. In addition, even if the screenshot or photo of the multimedia file contains a plaintext watermark, once the cracker performs geometric attacks such as enlarging, reducing, distorting or cutting the screenshot or photo, the screenshot or photo can be destroyed. Watermark, the watermark information cannot be accurately restored, and the anti-interference ability of ordinary plaintext watermark is low
Method used
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[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0042] see figure 1 , is a schematic flowchart of a watermark embedding method provided by an embodiment of the present invention. The method can be executed by a mobile device, and the mobile device for executing the interactive method can be a smart phone, a tablet computer, a desktop computer or a notebook computer, etc. Those skilled in the art can choose according to the actual situation, which does not affect the beneficial effe...
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The invention discloses a watermark embedding method. The watermark embedding method comprises the following steps: acquiring a pre-generated basic unit and a pre-generated watermark graph; wherein the basic unit is a Sierpinski rectangle; filling the basic unit according to the watermark graph to obtain a watermark unit; and based on a preset arrangement rule, embedding the watermark unit into afile. The invention further discloses a watermark embedding device and equipment and a computer readable storage medium, the embedded watermark units have self-similarity, watermark information can beextracted according to local watermarks, global watermarks can be restored, and the anti-interference capability of the watermarks can be effectively improved.
Description
technical field [0001] The present invention relates to the technical field of digital watermarking, and in particular, to a watermark embedding method, apparatus, device and computer-readable storage medium. Background technique [0002] With the development and progress of information technology, the exchange of multimedia information has reached an unprecedented depth and breadth, but this has also brought problems such as infringement, illegal copying and dissemination of multimedia files. Therefore, how to protect the copyright of multimedia files has been highly valued by people. , and watermark embedding technology, as an important means of copyright protection of multimedia files, has played an important role in promoting the development of information technology. [0003] At present, the types of digital watermarks embedded in multimedia files include invisible watermarks and plaintext watermarks. By adding invisible watermarks or plaintext watermarks to multimedia ...
Claims
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IPC IPC(8): G06F21/62H04N1/32
CPCG06F21/6218H04N1/32144H04N1/3232
Inventor 徐波
Owner GUANGZHOU DUOYI NETWORK TECH