Research On Digital Image Watermarking Technique Based On Chaos

With the rapid development of multimedia technology and especially growingof Internet, The digital medial has become a main way for informationcommunication. At the same time, multimedia information security problems and thequestion of copyright protection emerged as side effects of the popularity of digitalrepresentation and distribution over network. So the protection and enforcement ofintellectual property for digital media has become an important issue. Watermarkingwhich is one of the important fields of information hiding and the effective means toprotect copyrights piracy is receiving increasing attention. The key of digitalwatermark to copyright protection is the imperceptibility and robustness forembedded information.Research works focus on the excellent properties of chaotic sequence andDWT in digital image watermarking, which include: (1) Analysis of the technologyof digital image watermarking; (2) Analysis of the chaotic sequence andwatermarking methods based on chaotic system;...