Digital watermarking algorithm for solving false positive problem

Abstract

The invention discloses a digital watermarking algorithm for solving a false positive problem. The digital watermarking algorithm specifically comprises the following steps: step 1, selecting a carrier image and a watermarking image; step 2, carrying out singular value transformation on the carrier image and the watermarking image; 3, designing a watermark embedding algorithm to obtain a watermark-containing image; 4, designing a watermark extraction algorithm to obtain an extracted watermark image; and 5, performing a false positive test on the watermark-containing image. By adopting the algorithm, the authenticity of watermark extraction can be ensured, and the anti-counterfeiting coefficient is improved.

Description

technical field [0001] The invention belongs to the technical field of digital watermarking and relates to a digital watermarking algorithm for solving the false positive problem. Background technique [0002] With the advancement of science and technology, the rapid development of network and computer communication technology makes the exchange of image information easier, from traditional paper media to multimedia media. In this context, the dissemination of digital multimedia information is also more convenient. Appearing and being applied in various industries in the market, while bringing a lot of opportunities to industries such as business, entertainment, advertising, etc., it also brings challenges. A large number of digital products appearing on the Internet are extremely easy to be attacked and utilized by pirates. Therefore, problems such as information hiding and copyright protection have become increasingly prominent. As an effective way of copyright protection...

AI Technical Summary

Problems solved by technology

In the current common algorithms, in order to improve the robustness of the watermark, the singular value decomposition is usually combined with the frequency domain transformation. Although the robustness has been greatly improved, there are certain loopholes that counterfeiters will use. Extracting a false watermark from a picture that only embeds a real watermark but not a false watermark does not achieve a good copyright protection effect and cannot guarantee the authenticity of the extracted watermark, which is called a "false positive" watermark

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