［2］Wolfgang P, Delp E. A watermark for digital image[A]. In:Proceedings of IEEE International Conference on Image Processing [C], Los Alamitos, California, USA, 1996:219 ～222.
[2]
［4］Cox I J. Secure spread spectrum watermarking for multimedia [J]. IEEE Transactions on Image Processing, 1997.6(12):1673～1687.
[3]
［6］汪培庄,李洪兴.模糊系统理论与模糊计算机[M].北京:科学出版社,1996.
[4]
［1］Van Schyndel R G, Tirkel A Z, Osborne C F. A digital watermark [ A ]. In: Proceedings of IEEE International Conference on Image processing[C]. Los Alamitos,California,USA, 1994: 86 ～ 90.
[5]
［3］Cox I J, Linnartz J P M G. Some general methods for tampering with watermarks [J]. IEEE Journal on Selected Areas in Communications, 1998,16(4): 587～593.
