ISSN 1000-1239 CN 11-1777/TP

• Paper •     Next Articles

A Survey of Digital Watermarking

Yin Hao, Lin Chuang, Qiu Feng, and Ding Rong   

  1. (Department of Computer Science and Technology, Tsinghua University, Beijing 100084)
  • Online:2005-07-15

Abstract: Digital watermarking, the technology of embedding special information into multimedia data, is a topic that has recently gained increasing attention all over the world. The watermark of digital images, audio, video, and other media products in general has been proposed for resolving copyright ownership and verifying the integrity of content. The characteristics and applications of watermark techniques are first introduced, and then the basic concepts and evaluation criteria are expatiated. For further understanding, the watermark techniques from the various aspects are classified and some conventional watermark techniques and algorithms are analyzed in detail. At the same time, their security and performance are compared. Finally, the possible research direction of digital watermark technology are pointed out.

Key words: digital watermark, multimedia security, copyright protection