Digital watermark treatment method for copyright protection

Abstract

The invention discloses a digital watermark processing method for copyright protection, which comprises the following steps: by calculating related coefficients of a first set watermark matrix and a second set watermark matrix, judging whether the acquired related coefficients are more than a first set threshold value, and realizing the detection of the copyright protection for all digital musical works in a whole musical work set; and simultaneously, by calculating related coefficients of a first zero watermark sequence of each primary digital musical work and a second zero watermark sequence of the corresponding digital musical work to be detected, judging whether each acquired related coefficient is more than a second set threshold value, and realizing the detection of the copyright protection for a single digital musical work. Compared with the prior watermark processing method which uses the single digital musical work as a carrier, the method of the invention also can integrally protect the broadly existent musical work set in a form of set according to the characteristic that each digital musical work in the musical work set has the same copyright, and at the same time protects the single digital musical work.

Description

technical field [0001] The invention relates to a multimedia signal processing technology, in particular to a digital watermark processing method for copyright protection. Background technique [0002] In recent years, with the rapid development of digital multimedia technology and Internet technology, information security issues have become very prominent. Digital watermarking technology is a new direction in the field of information security at present. It is a new technology that can protect copyright in an open network environment. Digital watermarking technology has become a research hotspot in the field of multimedia signal processing. [0003] At present, there have been many digital watermarking technologies for digital music works, but most of these digital watermarking technologies are aimed at a single digital music work, that is, these existing digital watermarking technologies use a single digital music work as copyright information However, in practical applic...

AI Technical Summary

Problems solved by technology

Such a collection of music works can be used as a carrier of copyright information, just as the existing digital watermarking technology uses a single digital music work as a carrier of copyright information, but the traditional digital watermarking technology can only embed copyright watermarks for a single digital music work , but the watermark embedding of the music collection cannot be realized, and the robustness of the watermark is poor

At present, the digital watermarking method based on the collection of music works has not been reported at home and abroad, and it cannot meet the actual needs of copyright protection for collections of music works.

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