3Cox I J, Kilian J, Leighton T, et al. Secure Spread Spectrum Watermarking for Multimedia[J].IEEE Transactions on Image Proeessing, 1997,6(12):1673-1687.
4Xiamu Niu, Zheming Lu, Shenghe Sun. Digital Watermarking of Still Images with Gray-Level Digital Watermarks[J]. IEEE Transactions On Consumer Electronies, 2000,46(01):137-145.
5Liu R, Tan T. An SVD-Based Watermarking Scheme for Protecting Rightful Ownership[J]. IEEE Transactions On Multimedia, 2002,4(01):121-128.
6Xiao ping Zhang, Kan Li. Comments on An SVD-Based Watermarking Scheme for Protecting Rightful Ownership[J]. IEEE Transactions On Multimedia, 2005,7(02):593-594.
7[2]Yi Kai-xiang,Shi Jiao-ying.Adaptive 2-dimension image watermarking algorithm[J].Journal of Image and Graphic,2001,6(5):444-449.
8[3]Liu Xia-mu,Lu Zhe-ming,Sun Sheng-he.Digital watermarking of still images with gray-level digital watermarking[J].IEEE Transactions on Consumer Electronics,2000,46(1):137-145.
9[6]Liu Ruizhen,Tan Tieniu.An SVD-based watermarking scheme for protecting rightful ownership[J].IEEE Transactions on Multimedia,2002,4(1):121-128.