Comparision of several gray image digital watermarking algorithm
Renhou Li · Jisuanji gongcheng yu sheji · 2003
Digital watermarking is a new technique for digital multimedia copyright protection, the differences of the algorithms make the robustness and the imperceptibility of this technique very different. Three algorithms in frequent domain are described, and gray picture digital watermarking is analyzed and compared. The quantity of watermark and robust against diversified attacks are compared. In the end, the advantages and disadvantages of each method are summarized.