Research on Information Hiding Technology based on Digital Watermarking

The Internet is becoming more and more dependent on digital images and video. As a new technology to protect the information security, Information hiding provides a new direction for the research. Information hiding technology has important value for research and application in Internet hidden communication field, especially in the urgent need to solve copyright protection, information security and other aspects. This paper presents a comparative analysis of the algorithm to implement the information hiding technology; the algorithm based on DCT provides more security and data authentication compare to other digital watermarking approach.