AN IMAGE WATERMARKING ALGORITHM BASED ON DWT DCT AND SVD
With the development of network and multimedia technologies, multimedia copyright protection and content authentication have become serious problems that need to be solved urgently. Digital watermarking technology provides a strong solution for it. DWT and DCT are two most popular tools used in watermarking algorithm. With the increasing use of SVD, the digital watermarking technology in transform domain has been greatly developed. Based on DWT, DCT and SVD, we propose a new watermarking algorithm for digital image. Experimental results show that this algorithm combines the advantages of these three transforms. It can satisfy the imperceptibility and robustness very well. Furthermore, the algorithm is robust to the common image process such as JPEG compression, noise, filtering, cutting, rotation, and contrast enhance. Applying the Arnold transform to the watermark improves the robustness greatly. Compared with the SVD and the DCT+SVD algorithms, the proposed algorithm has stronger robustness and faster speed in embedding and extracting.
watermark DWT DCT SVD Arnold
Ben Wang Jinkou Ding Qiaoyan Wen Xin Liao Cuixiang Liu
State Key Laboratory of Networking and Switching, Beijing University of Posts and Telecommunications School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876, China
国际会议
北京
英文
1034-1038
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）