3ZENG W J, LIU B. A statistical watermark detection technique without using original images for resolving rightful owner--ships of digital images [J]. IEEE transaction on image processing, 1999, 8( 11): 1534-1548.
4TIRKEL A,SCHYNDEI. V. A digital watermark [C]. In:Proceeding ICIP,1994(2) : 86-89.
5RUANAIDH J J, DOWLING W J, BOLAND F M. Watermarking digital images for copyright protection [C]. IEEE proceeding on Vision, Signal and Image Processing, 1996. 8, 143 (4):250-256.
6WOLFGANG R,DEI.P E. A watermarking technique for digital imagery: Further studies[C]. Proceedings of international conference on imaging science, system and technology, Las Vegas, NV, 1997 : 21-23.
7VOYATZIS G, NIKOLAIDIS N, PITAS I. Digital watermarking: an overview[C]. 9th European Signal Processing Conference, Island of Rhodes, Greece, 1998: 9-12.
8BENDER W, GRUHI. D, MORIMOTO N, et al. Techniques for data hiding[J]. IBM System Journal, 1996, 35 (3~4): 313-336.
9PODILCHUK C I, ZENG W J. Digital image watermarking using visual models [ J ]. SPIEProceeding on Human Vision and Electronic Imaging, 1997, 3016: 100-111.
10COX I J, MILLER M L. A review of watermarking and the importance of perceptual modeling[C]. SPIE Proceeding on Human Vision and Electronic Imaging, 1997, 3016: 92-99.