6I J Cox,Joe Kilian,F Thomson.Secure Spread Spectrum.Watermarking for Multimedia[J].IEEE Transactions on Image Processing,1997,6(12):1673-1687.
7Mauro Bami, Franco Bartolini, Alessandro Piva. Improved Wavelet-Based Watermarking Through Pixel-Wise Masking[ J ]. IEEE Transactions on Image Processing,2001,10(5):783- 791.
8R G Van Schyndel, A Z Tirkel, C F Osborne. A digital watermark[ A].in Proc. IEEE Int. Conf. Image Processing[ C]. USA: IEEE, 1994.
9Srdjan Stankovic, Igor Djurovic, Ioannis Pitas. Watermarking in the space/spatial-frequency domain using two-dimensional radon-wigner distribution[J]. IEEE Transactions on Image Processing,2001,10(4):650 - 658.
10Watson A B. DCT quantization matrices visually optimized for individual images[ A]. In: Proc. of SPIE: Human Vision, Visual Processing and Digital Display IV[ C ]. Washington: SPIE, 1993.
