[1] Yuchi Liang, Gu Jihua, Liu Wei et al.. An image digital watermark technique based on digital holography and discrete cosine transform[J]. Acta Optica Sinica, 2006, 26(3): 355～361

[2] Lan Hongxing, Chen Songqiao, Hu Aina. Research on the second generation digital watermarking algorithm based on DWT domain[J]. Acta Electronica Sinica, 2007, 35(9): 1799～1803

[3] Li Huihui, Guo Lei, Liu Hang. Research on image fusion based on the second generation curvelet transform[J]. Acta Optica Sinica, 2006, 26(5): 657～662

[4] Wang Gang, Xiao Liang, He Anzhi. Algorithm research of adaptive fuzzy image enhancement in ridgelet transform domain[J]. Acta Optica Sinica, 2007, 27(7): 1183～1190

[5] Do M N, Vetterli M. The contourlet transform: An efficient directional multiresolution image representation[J]. IEEE Trans. Image Processing, 2005, 14(12): 2091～2106

[6] Andrew P, Bradley. Shift-invariance in the discrete wavelet transform[A]. Digital Image Computing: Techniques and Applications, Sydney, Australia, 2003. 29～38

[7] Jianping Zhou, Arthur L. Cunha, M. N. Do. Nonsubsampled contourlet transform: construction and application in enhancement[C]. Proc. of IEEE International Conference on Image Processing, Genoa, Italy, 2005. 469～472

[8] Arthur L. Cunha, Jianping Zhou, M. N. Do. The nonsubsampled contourlet transform: theory, design, and applications[J]. IEEE Trans. Image Processing, 2006, 15(10): 3089～3101

[9] Martin Kutter, Stefan Winkler. A vision-based masking model for spread-spectrum image watermarking[J]. IEEE Transaction on Image Processing, 2002, 11(1): 16～25

[10] Pan Rong, Gao Youxing. Image watermarking method based on wavelet transform[J]. J. Image and Graphics, 2002, 7(7): 667～671

[11] Guo Zhiqiang, Tang Bing. An adaptive watermarking algorithm for color images[J]. J. Wuhan University of Technology, 2004, 26(2): 76～79