A Novel DCT Domain Blind Watermarking Algorithm

摘要：

This paper proposed a DCT domain blind watermarking algorithm. Firstly we divide the original image into 8*8 blocks and conduct discrete cosine transform to these blocks, then extract the transformed DC coefficient of each block to form a coefficient matrix, and then best-scramble the coefficient matrix to compare with the chaos-processed binary watermarking image, to achieve the objective of watermark embedding by quantifying the DC coefficients of host image according to the result of comparison. The watermarking extraction process does not require the original image so that achieved the blind extraction. Simulation shows that the algorithm has good robustness and transparency in cope with common attacks.

关键词： DCT chaos quantification blind watermarking

作者: Shen Hongxue HeZhen

作者单位: The Software Engineering college of Zhengzhou University of Light Industry Zhengzhou. Henan, 450002 The Department of Computer and Communication Engineering of Zhengzhou University of Light Industry Z

会议类型: 国际会议

会议名称: 2011 Eighth International Conference on Fuzzy System and Knowledge Discovery(第八届模糊系统与知识发现国际会议 FSKD 2011)

会议地点: 上海

会议语种:英文

页码: 2208-2211

在线出版日期: 2011-07-26（万方平台首次上网日期，不代表论文的发表时间）