Digital Watermarking Technology and Application

The developing trends of digital watermarking technologies are first introduced. Then the methods for digital watermarking generating, embedding, detecting and distill algorithms are described. The simple attack, synchronizing attack, removal attack and ambiguity attacks are discussed, and their corresponding defensive systems are also given. The digital watermarking detecting and evaluating methods are analyzed. The application area of digital watermarking is listed too. Finally it is concluded that digital watermarking technology is current researching hot spot in information science, and has a bright prospect.