Digital Watermarking And Application Research On Digital Rights Management

With the rapid development of information technology and network technology, ways of traditional communication have changed a lot. The digital multimedia information has been increasingly popular by means of its inconvenience and quickness. Meanwhile, the consequent copyright problems have become more and more seriously. Lack of proper protection mechanism,meta-information could have been copied, changed and forwarded easily, which damaged the legal rights of copyright owner. Thus, the research of copyright protection of multimedia digital information has caused more and more attention. In order to solve this problem, digital copyright management technology, which has become the hot point of research in different countries, has been made out.Firstly, this paper analyses the theories and technologies concerning to multi-media copyright protection. And it also summaries the application of digital watermarking technology in digital copyright, which is the key technology in digital copyright management. This paper combines digital copyright management with digital watermarking technology to design and implement a system based on a copyright management of digital watermarking. Then, this paper design and implement an image dual watermark algorithm based on a content-based watermarking for image. Therefore, it's effect to protect digital multimedia information.