[1] PAN Zhi-hong，LI Zhi-juan，GONG Zi-xia. A survey of digital watermarking [J]. Computer & Digital Engineering，2008，36(4)：119-121，133.

[2] Potdar V，Han S，Chang E. A survey of digital image watermarking techniques [C]//Proceedings of the 3rd International IEEE Conference on Industrial Informatics，Aug 10-12，2005：709-716.

[3] FU De-sheng，HUANG Wei. Digital watermarking based on wavelet transform ation and its realization on Matlab [J]. Computer Engineering and Design，2008，29(4)：1004-1006.

[4] PAN Rong. Blind image watermarking extraction in DWT domain [J]. Acta Photonica Sinica，2006，35(10)：1613-1616.

[5] LI Zong-zhi，SANG Jun，WU Zhong-fu，et al. Digital watermarking based on wavelet transform of image [J]. Computer Engineering，2004，30(21)：109-110.

[6] SHAO Ya-fei，WU Guo-wei，LIN Xing-gang. Quantization-based digital watermarking algorithm [J]. Journal of Tsinghua University：Science and Technology，2003，43(1)：20-22.

[7] LIU Lian-shan，LI Ren-hou，GAO Qi. DWT-based color image watermarking scheme of embedding watermark into the green components [J]. Journal on Communications，2005，26(7)：62-67.

[8] Temi C，Choomchuay S，Lasakul A. A robust image watermarking using multiresolution analysis of wavelet [C]//IEEE International Symposium on Communications and Information Technology，Oct 12-14，2005，1：623-626.

[9] HU Yu-ping，HAN De-zhi，YANG Si-qing. Image-adaptive watermarking algorithm robust to geometric distortion in DWT domain [J]. Journal of System Simulation，2005，17(10)：2470-2475.

[10] Taskovski D，Bogdanova S，Bogdanov M. Blind low frequency watermarking method [J]. International Journal of Signal Processing (S1304-4494)，2005，2(3)：146-150.

[11] LIU Jiu-fen，WANG Zhen-wu，HUANG Da-ren. Image watermark algorithm robust to geometric distortion in DWT domain [J]. Journal of Zhejiang University：Engineering Science，2003，37(4)：386-392.

[12] HUANG Da-ren，LIU Jiu-fen，HUANG Ji-wu. An embedding strategy and algorithm for image watermarking in DWT domain [J]. Journal of Software，2002，13(7)：1290-1297.

[13] YANG Ya-li，NI Guo-qiang. Blind watermarking algorithm using the quantization of parity [J]. Opto-Electronic Engineering，2005，32(9)：83-86.

[14] Gorodetski V I，Popyack L J，Samoilov V，et al. SVD-based approach to transparent embedding data into digital images [J]. Lecture Notes in Computer Science(S0302-9743)，2001，2052：263-274.

[15] LI Xu-dong，ZHANG Zhen-yue. Public watermarking using matrix norm [J]. Journal of Computer-aided Design & Computer Graphics，2005，17(8)：1857-1861