[1] [1] COX I J,MILLER M L,BLOOM J A.Digital watermarking[M].New York:Academic Pros,2002:1-10

[2] [2] BAMI M,PODILCHUK C I,BARTOLINI F,et al.Watermark embedding:hiding a signal within a cover image[J].IEEE Communications Magazine,2001,39(8):102-108

[5] [5] TSAI M J,YU K Y,CHEN Y Z,Joint wavelet and spatial transformation for digital watermarking[J].IEEE Transactions on Consumer Electronics,2000,46(1):241-245

[7] [7] Candes E J.Ridgetlets:Theory and Applications[D].Palo Alto,California:Department of statistics,Stanford University,1998

[8] [8] Minh N Do,Martin Vetterli.The finite ridgelet transform for image reprensentation[J].IEEE Transactions on Image Processing,2003,12(1):16-28

[9] [9] Heurique S Malvar,Dinei A F.Florencio.Improved spread spectrum:A new modulation technique for robust watermarking[J].IEEE Transactions on Signal Processing,2003,51(4):898-905

[10] [10] GUO Rui-feng,LING Ge-jiang,DONG Jian-wang,et al.Quickly tracing detection for spread spectrum watermark based on effect estimation of the affine transform[J].Pattern Recognition,2005,38:2530-2536

[11] [11] COX I J,KILLISN J,LEIGHTON T,et al.Secure spread spectrum watermarking for multimedia[J].IEEE Transactions on Image Processing,1997,6(12):1673-1687

[14] [14] KATZENBEISSER S,PETITCOLAS E Information hiding techniques for steganography and digital watermarking[M].Northwood:Artec House,1999:97-119