M. He, Q. Tan, L. Cao, Q. He, and G. Jin, “Security enhanced optical encryption system by random phase key and permutation key,” Opt. Express 17(25), 22462–22473 (2009).

[CrossRef]

Y. Sheng, Z. Xin, M. S. Alam, L. Xi, and L. Xiao-Feng, “Information hiding based on double random-phase encoding and public-key cryptography,” Opt. Express 17(5), 3270–3284 (2009).

[CrossRef]
[PubMed]

S.-C. Pei and W.-L. Hsue, “Random discrete fractional Fourier transform,” IEEE Signal Process. Lett. 16(12), 1015–1018 (2009).

[CrossRef]

J. Li, X. Zhang, S. Liu, and X. Ren, “Adaptive watermarking scheme using a gray-level computer generated hologram,” Appl. Opt. 48(26), 4858–4865 (2009).

[CrossRef]
[PubMed]

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

N. Bi, Q. Sun, D. Huang, Z. Yang, and J. Huang, “Robust image watermarking based on multiband wavelets and empirical mode decomposition,” IEEE Trans. Image Process. 16(8), 1956–1966 (2007).

[CrossRef]
[PubMed]

Z. Liu and S. Liu, “Random fractional Fourier transform,” Opt. Lett. 32(15), 2088–2090 (2007).

[CrossRef]
[PubMed]

R. Tao, Y. Xin, and Y. Wang, “Double image encryption based on random phase encoding in the fractional Fourier domain,” Opt. Express 15(24), 16067–16079 (2007).

[CrossRef]
[PubMed]

S. Deng, L. Liu, H. Lang, D. Zhao, and X. Liu, “Watermarks encrypted in the cascaded Fresnel digital hologram,” Optik (Stuttg.) 118, 302–305 (2007).

[CrossRef]

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

S. Deng, L. Liu, H. Lang, W. Pan, and D. Zhao, “Hiding an image in cascaded Fresnel digital holograms,” Chin. Opt. Lett. 4, 268–271 (2006).

S.-C. Pei and W.-L. Hsue, “The multiple-parameter discrete fractional Fourier transform,” IEEE Signal Process. Lett. 13(6), 329–332 (2006).

[CrossRef]

A. Reddy and B. Chatterji, “A new wavelet based logo-watermarking scheme,” Pattern Recognit. Lett. 26(7), 1019–1027 (2005).

[CrossRef]

P. Bao, “Xiaohu Ma, “Image adaptive watermarking using wavelet domain singular value decomposition,” IEEE Trans. Circ. Syst. Video Tech. 15, 96–102 (2005).

[CrossRef]

H. Zhai, F. Liu, X. Yang, G. Mu, and P. Chavel, “Improving binary images reconstructed from kinoforms by amplitude adjustment,” Opt. Commun. 219(1-6), 81–85 (2003).

[CrossRef]

M. Barni, F. Bartolini, and A. Piva, “Improved wavelet-based watermarking through pixel-wise masking,” IEEE Trans. Image Process. 10(5), 783–791 (2001).

[CrossRef]

Y. Aoki, “Watermarking technique using computer-generated holograms,” Electron. Commun. Jpn. 84(1), 21–31 (2001).

[CrossRef]

C. Candan, M. A. Kutay, and H. M. Ozaktas, “The discrete fractional Fourier transform,” IEEE Trans. Signal Process. 48(5), 1329–1337 (2000).

[CrossRef]

Y. Aoki, “Watermarking technique using computer-generated holograms,” Electron. Commun. Jpn. 84(1), 21–31 (2001).

[CrossRef]

P. Bao, “Xiaohu Ma, “Image adaptive watermarking using wavelet domain singular value decomposition,” IEEE Trans. Circ. Syst. Video Tech. 15, 96–102 (2005).

[CrossRef]

M. Barni, F. Bartolini, and A. Piva, “Improved wavelet-based watermarking through pixel-wise masking,” IEEE Trans. Image Process. 10(5), 783–791 (2001).

[CrossRef]

M. Barni, F. Bartolini, and A. Piva, “Improved wavelet-based watermarking through pixel-wise masking,” IEEE Trans. Image Process. 10(5), 783–791 (2001).

[CrossRef]

N. Bi, Q. Sun, D. Huang, Z. Yang, and J. Huang, “Robust image watermarking based on multiband wavelets and empirical mode decomposition,” IEEE Trans. Image Process. 16(8), 1956–1966 (2007).

[CrossRef]
[PubMed]

C. Candan, M. A. Kutay, and H. M. Ozaktas, “The discrete fractional Fourier transform,” IEEE Trans. Signal Process. 48(5), 1329–1337 (2000).

[CrossRef]

A. Reddy and B. Chatterji, “A new wavelet based logo-watermarking scheme,” Pattern Recognit. Lett. 26(7), 1019–1027 (2005).

[CrossRef]

H. Zhai, F. Liu, X. Yang, G. Mu, and P. Chavel, “Improving binary images reconstructed from kinoforms by amplitude adjustment,” Opt. Commun. 219(1-6), 81–85 (2003).

[CrossRef]

S. Deng, L. Liu, H. Lang, D. Zhao, and X. Liu, “Watermarks encrypted in the cascaded Fresnel digital hologram,” Optik (Stuttg.) 118, 302–305 (2007).

[CrossRef]

S. Deng, L. Liu, H. Lang, W. Pan, and D. Zhao, “Hiding an image in cascaded Fresnel digital holograms,” Chin. Opt. Lett. 4, 268–271 (2006).

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

S.-C. Pei and W.-L. Hsue, “Random discrete fractional Fourier transform,” IEEE Signal Process. Lett. 16(12), 1015–1018 (2009).

[CrossRef]

S.-C. Pei and W.-L. Hsue, “The multiple-parameter discrete fractional Fourier transform,” IEEE Signal Process. Lett. 13(6), 329–332 (2006).

[CrossRef]

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

N. Bi, Q. Sun, D. Huang, Z. Yang, and J. Huang, “Robust image watermarking based on multiband wavelets and empirical mode decomposition,” IEEE Trans. Image Process. 16(8), 1956–1966 (2007).

[CrossRef]
[PubMed]

N. Bi, Q. Sun, D. Huang, Z. Yang, and J. Huang, “Robust image watermarking based on multiband wavelets and empirical mode decomposition,” IEEE Trans. Image Process. 16(8), 1956–1966 (2007).

[CrossRef]
[PubMed]

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

C. Candan, M. A. Kutay, and H. M. Ozaktas, “The discrete fractional Fourier transform,” IEEE Trans. Signal Process. 48(5), 1329–1337 (2000).

[CrossRef]

S. Deng, L. Liu, H. Lang, D. Zhao, and X. Liu, “Watermarks encrypted in the cascaded Fresnel digital hologram,” Optik (Stuttg.) 118, 302–305 (2007).

[CrossRef]

S. Deng, L. Liu, H. Lang, W. Pan, and D. Zhao, “Hiding an image in cascaded Fresnel digital holograms,” Chin. Opt. Lett. 4, 268–271 (2006).

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

H. Zhai, F. Liu, X. Yang, G. Mu, and P. Chavel, “Improving binary images reconstructed from kinoforms by amplitude adjustment,” Opt. Commun. 219(1-6), 81–85 (2003).

[CrossRef]

S. Deng, L. Liu, H. Lang, D. Zhao, and X. Liu, “Watermarks encrypted in the cascaded Fresnel digital hologram,” Optik (Stuttg.) 118, 302–305 (2007).

[CrossRef]

S. Deng, L. Liu, H. Lang, W. Pan, and D. Zhao, “Hiding an image in cascaded Fresnel digital holograms,” Chin. Opt. Lett. 4, 268–271 (2006).

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

S. Deng, L. Liu, H. Lang, D. Zhao, and X. Liu, “Watermarks encrypted in the cascaded Fresnel digital hologram,” Optik (Stuttg.) 118, 302–305 (2007).

[CrossRef]

H. Zhai, F. Liu, X. Yang, G. Mu, and P. Chavel, “Improving binary images reconstructed from kinoforms by amplitude adjustment,” Opt. Commun. 219(1-6), 81–85 (2003).

[CrossRef]

C. Candan, M. A. Kutay, and H. M. Ozaktas, “The discrete fractional Fourier transform,” IEEE Trans. Signal Process. 48(5), 1329–1337 (2000).

[CrossRef]

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

S.-C. Pei and W.-L. Hsue, “Random discrete fractional Fourier transform,” IEEE Signal Process. Lett. 16(12), 1015–1018 (2009).

[CrossRef]

S.-C. Pei and W.-L. Hsue, “The multiple-parameter discrete fractional Fourier transform,” IEEE Signal Process. Lett. 13(6), 329–332 (2006).

[CrossRef]

M. Barni, F. Bartolini, and A. Piva, “Improved wavelet-based watermarking through pixel-wise masking,” IEEE Trans. Image Process. 10(5), 783–791 (2001).

[CrossRef]

A. Reddy and B. Chatterji, “A new wavelet based logo-watermarking scheme,” Pattern Recognit. Lett. 26(7), 1019–1027 (2005).

[CrossRef]

N. Bi, Q. Sun, D. Huang, Z. Yang, and J. Huang, “Robust image watermarking based on multiband wavelets and empirical mode decomposition,” IEEE Trans. Image Process. 16(8), 1956–1966 (2007).

[CrossRef]
[PubMed]

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

H. Zhai, F. Liu, X. Yang, G. Mu, and P. Chavel, “Improving binary images reconstructed from kinoforms by amplitude adjustment,” Opt. Commun. 219(1-6), 81–85 (2003).

[CrossRef]

N. Bi, Q. Sun, D. Huang, Z. Yang, and J. Huang, “Robust image watermarking based on multiband wavelets and empirical mode decomposition,” IEEE Trans. Image Process. 16(8), 1956–1966 (2007).

[CrossRef]
[PubMed]

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

H. Zhai, F. Liu, X. Yang, G. Mu, and P. Chavel, “Improving binary images reconstructed from kinoforms by amplitude adjustment,” Opt. Commun. 219(1-6), 81–85 (2003).

[CrossRef]

S. Deng, L. Liu, H. Lang, D. Zhao, and X. Liu, “Watermarks encrypted in the cascaded Fresnel digital hologram,” Optik (Stuttg.) 118, 302–305 (2007).

[CrossRef]

S. Deng, L. Liu, H. Lang, W. Pan, and D. Zhao, “Hiding an image in cascaded Fresnel digital holograms,” Chin. Opt. Lett. 4, 268–271 (2006).

N. Takai and Y. Mifune, “Digital watermarking by a holographic technique,” Appl. Opt. 41(5), 865–873 (2002).

[CrossRef]
[PubMed]

S. Kishk and B. Javidi, “Information hiding technique with double phase encoding,” Appl. Opt. 41(26), 5462–5470 (2002).

[CrossRef]
[PubMed]

J. Li, X. Zhang, S. Liu, and X. Ren, “Adaptive watermarking scheme using a gray-level computer generated hologram,” Appl. Opt. 48(26), 4858–4865 (2009).

[CrossRef]
[PubMed]

Y. Aoki, “Watermarking technique using computer-generated holograms,” Electron. Commun. Jpn. 84(1), 21–31 (2001).

[CrossRef]

S.-C. Pei and W.-L. Hsue, “Random discrete fractional Fourier transform,” IEEE Signal Process. Lett. 16(12), 1015–1018 (2009).

[CrossRef]

S.-C. Pei and W.-L. Hsue, “The multiple-parameter discrete fractional Fourier transform,” IEEE Signal Process. Lett. 13(6), 329–332 (2006).

[CrossRef]

P. Bao, “Xiaohu Ma, “Image adaptive watermarking using wavelet domain singular value decomposition,” IEEE Trans. Circ. Syst. Video Tech. 15, 96–102 (2005).

[CrossRef]

N. Bi, Q. Sun, D. Huang, Z. Yang, and J. Huang, “Robust image watermarking based on multiband wavelets and empirical mode decomposition,” IEEE Trans. Image Process. 16(8), 1956–1966 (2007).

[CrossRef]
[PubMed]

M. Barni, F. Bartolini, and A. Piva, “Improved wavelet-based watermarking through pixel-wise masking,” IEEE Trans. Image Process. 10(5), 783–791 (2001).

[CrossRef]

W.-H. Lin, S.-J. Horng, T.-W. Kao, P. Fan, C.-L. Lee, and Y. Pan, “An efficient watermarking method based on significant difference of wavelet coefficient quantization,” IEEE Trans. Multimed. 10(5), 746–757 (2008).

[CrossRef]

C. Candan, M. A. Kutay, and H. M. Ozaktas, “The discrete fractional Fourier transform,” IEEE Trans. Signal Process. 48(5), 1329–1337 (2000).

[CrossRef]

H. Zhai, F. Liu, X. Yang, G. Mu, and P. Chavel, “Improving binary images reconstructed from kinoforms by amplitude adjustment,” Opt. Commun. 219(1-6), 81–85 (2003).

[CrossRef]

M. Liu, G. Yang, H. Xie, M. Xia, J. Hu, and H. Zha, “Computer-generated hologram watermarking resilient to rotation and scaling,” Opt. Eng. 46(6), 060501 (2007).

[CrossRef]

Y. Sheng, Z. Xin, M. S. Alam, L. Xi, and L. Xiao-Feng, “Information hiding based on double random-phase encoding and public-key cryptography,” Opt. Express 17(5), 3270–3284 (2009).

[CrossRef]
[PubMed]

R. Tao, Y. Xin, and Y. Wang, “Double image encryption based on random phase encoding in the fractional Fourier domain,” Opt. Express 15(24), 16067–16079 (2007).

[CrossRef]
[PubMed]

M. He, Q. Tan, L. Cao, Q. He, and G. Jin, “Security enhanced optical encryption system by random phase key and permutation key,” Opt. Express 17(25), 22462–22473 (2009).

[CrossRef]

S. Deng, L. Liu, H. Lang, D. Zhao, and X. Liu, “Watermarks encrypted in the cascaded Fresnel digital hologram,” Optik (Stuttg.) 118, 302–305 (2007).

[CrossRef]

A. Reddy and B. Chatterji, “A new wavelet based logo-watermarking scheme,” Pattern Recognit. Lett. 26(7), 1019–1027 (2005).

[CrossRef]

K. Deng, G. Yang, and C. Zhang, “Burch computer-generated hologram watermarking resilient to strong cropping attack,” Biomedical Optics and 3-D Imaging (BIOMED) Topical Meeting, OSA Optics and Photonics Congress, April 2010, in Miami, FL, USA.