C. Lin, X. J. Shen, R. Tang, and X. Zou, “Multiple images encryption based on Fourier transform hologram,” Opt. Commun. 285, 1023–1028 (2012).

[CrossRef]

C. Lin and X. J. Shen, “Analysis and design of impulse attack free generalized joint transform correlator optical encryption scheme,” Opt. Laser Technol. 44, 2032–2036 (2012).

[CrossRef]

H. T. Chang, H.-E. Hwang, C. L. Lee, and M.-T. Lee, “Wavelength multiplexing multiple-image encryption using cascaded phase-only masks in the Fresnel transform domain,” Appl. Opt. 50, 710–716 (2011).

[CrossRef]

H. T. Chang, H.-E. Hwang, and C. L. Lee, “Position multiplexing multiple-image encryption using cascaded phase-only masks in Fresnel transform domain,” Opt. Commun. 284, 4146–4151 (2011).

[CrossRef]

Z. J. Liu, Y. Zhang, H. F. Zhao, M. A. Ahmad, and S. T. Liu, “Optical multi-image encryption based on frequency shift,” Optik 122, 1010–1013 (2011).

[CrossRef]

D. Amaya, M. Tebaldi, R. Torroba, and N. Bolognini, “Wavelength multiplexing encryption using joint transform correlator architecture,” Appl. Opt. 48, 2099–2104(2009).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “The multiple-parameter fractional Hadamard transform,” Opt. Commun. 282, 1531–1535 (2009).

[CrossRef]

L. F. Chen and D. M. Zhao, “Color image encoding in dual fractional Fourier-wavelet domain with random phases,” Opt. Commun. 282, 3433–3438 (2009).

[CrossRef]

D. M. Zhao, X. X. Li, and L. E. Chen, “Optical image encryption with redefined fractional Hartley transform,” Opt. Commun. 281, 5326–5329 (2008).

[CrossRef]

X. C. Cheng and L. Z. Cai, “Security enhancement of double-random phase encryption by amplitude modulation,” Opt. Lett. 33, 1575–1577 (2008).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “Optical image encryption based on the multiple- parameter fractional Fourier transform,” Opt. Lett. 33, 581–583 (2008).

[CrossRef]

L. F. Chen and D. M. Zhao, “Optical color image encryption by wavelength multiplexing and lensless Fresnel transform holograms,” Opt. Express 14, 8552–8560 (2006).

[CrossRef]

G. Situ and J. Zhang, “Position multiplexing for multiple-image encryption,” Appl. Opt. 8, 391–397 (2006).

[CrossRef]

Z. J. Liu, Q. Guo, and S. T. Liu, “The discrete fractional random cosine and sine transforms,” Opt. Commun. 265, 100–105 (2006).

[CrossRef]

Z. J. Liu, H. E. Zhao, and S. T. Liu, “Discrete fractional random transform,” Opt. Commun. 255, 357–365 (2005).

[CrossRef]

G. Situ and J. Zhang, “Multiple-image encryption by wavelength multiplexing,” Opt. Lett. 30, 1306–1307(2005).

[CrossRef]

M. Z. He, L. Z. Cai, Q. Liu, X. C. Wang, and X. F. Meng, “Multiple image encryption an water marking by random phase matching,” Opt. Commun. 247, 29–37 (2005).

[CrossRef]

Z. J. Liu, Y. Zhang, H. F. Zhao, M. A. Ahmad, and S. T. Liu, “Optical multi-image encryption based on frequency shift,” Optik 122, 1010–1013 (2011).

[CrossRef]

X. C. Cheng and L. Z. Cai, “Security enhancement of double-random phase encryption by amplitude modulation,” Opt. Lett. 33, 1575–1577 (2008).

[CrossRef]

M. Z. He, L. Z. Cai, Q. Liu, X. C. Wang, and X. F. Meng, “Multiple image encryption an water marking by random phase matching,” Opt. Commun. 247, 29–37 (2005).

[CrossRef]

H. T. Chang, H.-E. Hwang, C. L. Lee, and M.-T. Lee, “Wavelength multiplexing multiple-image encryption using cascaded phase-only masks in the Fresnel transform domain,” Appl. Opt. 50, 710–716 (2011).

[CrossRef]

H. T. Chang, H.-E. Hwang, and C. L. Lee, “Position multiplexing multiple-image encryption using cascaded phase-only masks in Fresnel transform domain,” Opt. Commun. 284, 4146–4151 (2011).

[CrossRef]

D. M. Zhao, X. X. Li, and L. E. Chen, “Optical image encryption with redefined fractional Hartley transform,” Opt. Commun. 281, 5326–5329 (2008).

[CrossRef]

Z. J. Liu, Q. Guo, and S. T. Liu, “The discrete fractional random cosine and sine transforms,” Opt. Commun. 265, 100–105 (2006).

[CrossRef]

M. Z. He, L. Z. Cai, Q. Liu, X. C. Wang, and X. F. Meng, “Multiple image encryption an water marking by random phase matching,” Opt. Commun. 247, 29–37 (2005).

[CrossRef]

H. T. Chang, H.-E. Hwang, C. L. Lee, and M.-T. Lee, “Wavelength multiplexing multiple-image encryption using cascaded phase-only masks in the Fresnel transform domain,” Appl. Opt. 50, 710–716 (2011).

[CrossRef]

H. T. Chang, H.-E. Hwang, and C. L. Lee, “Position multiplexing multiple-image encryption using cascaded phase-only masks in Fresnel transform domain,” Opt. Commun. 284, 4146–4151 (2011).

[CrossRef]

W. M. Jin and C. J. Yan, “Optical image encryption based on multi-channel fractional Fourier transform and double random phase encoding technique,” Optik 118, 38–41(2007).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “The multiple-parameter fractional Hadamard transform,” Opt. Commun. 282, 1531–1535 (2009).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “Optical image encryption based on the multiple- parameter fractional Fourier transform,” Opt. Lett. 33, 581–583 (2008).

[CrossRef]

H. T. Chang, H.-E. Hwang, and C. L. Lee, “Position multiplexing multiple-image encryption using cascaded phase-only masks in Fresnel transform domain,” Opt. Commun. 284, 4146–4151 (2011).

[CrossRef]

H. T. Chang, H.-E. Hwang, C. L. Lee, and M.-T. Lee, “Wavelength multiplexing multiple-image encryption using cascaded phase-only masks in the Fresnel transform domain,” Appl. Opt. 50, 710–716 (2011).

[CrossRef]

D. M. Zhao, X. X. Li, and L. E. Chen, “Optical image encryption with redefined fractional Hartley transform,” Opt. Commun. 281, 5326–5329 (2008).

[CrossRef]

C. Lin and X. J. Shen, “Analysis and design of impulse attack free generalized joint transform correlator optical encryption scheme,” Opt. Laser Technol. 44, 2032–2036 (2012).

[CrossRef]

C. Lin, X. J. Shen, R. Tang, and X. Zou, “Multiple images encryption based on Fourier transform hologram,” Opt. Commun. 285, 1023–1028 (2012).

[CrossRef]

M. Z. He, L. Z. Cai, Q. Liu, X. C. Wang, and X. F. Meng, “Multiple image encryption an water marking by random phase matching,” Opt. Commun. 247, 29–37 (2005).

[CrossRef]

Z. J. Liu, Y. Zhang, H. F. Zhao, M. A. Ahmad, and S. T. Liu, “Optical multi-image encryption based on frequency shift,” Optik 122, 1010–1013 (2011).

[CrossRef]

Z. J. Liu, Q. Guo, and S. T. Liu, “The discrete fractional random cosine and sine transforms,” Opt. Commun. 265, 100–105 (2006).

[CrossRef]

Z. J. Liu, H. E. Zhao, and S. T. Liu, “Discrete fractional random transform,” Opt. Commun. 255, 357–365 (2005).

[CrossRef]

S. T. Liu, Q. Mi, and B. Zhu, “Optical image encryption with multi-stage and multi- channel fractional Fourier domain filtering,” Opt. Lett. 26, 1242–1244 (2001).

[CrossRef]

Z. J. Liu, Y. Zhang, H. F. Zhao, M. A. Ahmad, and S. T. Liu, “Optical multi-image encryption based on frequency shift,” Optik 122, 1010–1013 (2011).

[CrossRef]

Z. J. Liu, Q. Guo, and S. T. Liu, “The discrete fractional random cosine and sine transforms,” Opt. Commun. 265, 100–105 (2006).

[CrossRef]

Z. J. Liu, H. E. Zhao, and S. T. Liu, “Discrete fractional random transform,” Opt. Commun. 255, 357–365 (2005).

[CrossRef]

M. Z. He, L. Z. Cai, Q. Liu, X. C. Wang, and X. F. Meng, “Multiple image encryption an water marking by random phase matching,” Opt. Commun. 247, 29–37 (2005).

[CrossRef]

C. Lin, X. J. Shen, R. Tang, and X. Zou, “Multiple images encryption based on Fourier transform hologram,” Opt. Commun. 285, 1023–1028 (2012).

[CrossRef]

C. Lin and X. J. Shen, “Analysis and design of impulse attack free generalized joint transform correlator optical encryption scheme,” Opt. Laser Technol. 44, 2032–2036 (2012).

[CrossRef]

C. Lin, X. J. Shen, R. Tang, and X. Zou, “Multiple images encryption based on Fourier transform hologram,” Opt. Commun. 285, 1023–1028 (2012).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “The multiple-parameter fractional Hadamard transform,” Opt. Commun. 282, 1531–1535 (2009).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “Optical image encryption based on the multiple- parameter fractional Fourier transform,” Opt. Lett. 33, 581–583 (2008).

[CrossRef]

M. Z. He, L. Z. Cai, Q. Liu, X. C. Wang, and X. F. Meng, “Multiple image encryption an water marking by random phase matching,” Opt. Commun. 247, 29–37 (2005).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “The multiple-parameter fractional Hadamard transform,” Opt. Commun. 282, 1531–1535 (2009).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “Optical image encryption based on the multiple- parameter fractional Fourier transform,” Opt. Lett. 33, 581–583 (2008).

[CrossRef]

W. M. Jin and C. J. Yan, “Optical image encryption based on multi-channel fractional Fourier transform and double random phase encoding technique,” Optik 118, 38–41(2007).

[CrossRef]

Z. J. Liu, Y. Zhang, H. F. Zhao, M. A. Ahmad, and S. T. Liu, “Optical multi-image encryption based on frequency shift,” Optik 122, 1010–1013 (2011).

[CrossRef]

L. F. Chen and D. M. Zhao, “Color image encoding in dual fractional Fourier-wavelet domain with random phases,” Opt. Commun. 282, 3433–3438 (2009).

[CrossRef]

D. M. Zhao, X. X. Li, and L. E. Chen, “Optical image encryption with redefined fractional Hartley transform,” Opt. Commun. 281, 5326–5329 (2008).

[CrossRef]

L. F. Chen and D. M. Zhao, “Optical color image encryption by wavelength multiplexing and lensless Fresnel transform holograms,” Opt. Express 14, 8552–8560 (2006).

[CrossRef]

Z. J. Liu, H. E. Zhao, and S. T. Liu, “Discrete fractional random transform,” Opt. Commun. 255, 357–365 (2005).

[CrossRef]

Z. J. Liu, Y. Zhang, H. F. Zhao, M. A. Ahmad, and S. T. Liu, “Optical multi-image encryption based on frequency shift,” Optik 122, 1010–1013 (2011).

[CrossRef]

C. Lin, X. J. Shen, R. Tang, and X. Zou, “Multiple images encryption based on Fourier transform hologram,” Opt. Commun. 285, 1023–1028 (2012).

[CrossRef]

D. Amaya, M. Tebaldi, R. Torroba, and N. Bolognini, “Wavelength multiplexing encryption using joint transform correlator architecture,” Appl. Opt. 48, 2099–2104(2009).

[CrossRef]

H. T. Chang, H.-E. Hwang, C. L. Lee, and M.-T. Lee, “Wavelength multiplexing multiple-image encryption using cascaded phase-only masks in the Fresnel transform domain,” Appl. Opt. 50, 710–716 (2011).

[CrossRef]

G. Situ and J. Zhang, “Position multiplexing for multiple-image encryption,” Appl. Opt. 8, 391–397 (2006).

[CrossRef]

H. T. Chang, H.-E. Hwang, and C. L. Lee, “Position multiplexing multiple-image encryption using cascaded phase-only masks in Fresnel transform domain,” Opt. Commun. 284, 4146–4151 (2011).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “The multiple-parameter fractional Hadamard transform,” Opt. Commun. 282, 1531–1535 (2009).

[CrossRef]

D. M. Zhao, X. X. Li, and L. E. Chen, “Optical image encryption with redefined fractional Hartley transform,” Opt. Commun. 281, 5326–5329 (2008).

[CrossRef]

L. F. Chen and D. M. Zhao, “Color image encoding in dual fractional Fourier-wavelet domain with random phases,” Opt. Commun. 282, 3433–3438 (2009).

[CrossRef]

Z. J. Liu, H. E. Zhao, and S. T. Liu, “Discrete fractional random transform,” Opt. Commun. 255, 357–365 (2005).

[CrossRef]

Z. J. Liu, Q. Guo, and S. T. Liu, “The discrete fractional random cosine and sine transforms,” Opt. Commun. 265, 100–105 (2006).

[CrossRef]

C. Lin, X. J. Shen, R. Tang, and X. Zou, “Multiple images encryption based on Fourier transform hologram,” Opt. Commun. 285, 1023–1028 (2012).

[CrossRef]

M. Z. He, L. Z. Cai, Q. Liu, X. C. Wang, and X. F. Meng, “Multiple image encryption an water marking by random phase matching,” Opt. Commun. 247, 29–37 (2005).

[CrossRef]

C. Lin and X. J. Shen, “Analysis and design of impulse attack free generalized joint transform correlator optical encryption scheme,” Opt. Laser Technol. 44, 2032–2036 (2012).

[CrossRef]

X. C. Cheng and L. Z. Cai, “Security enhancement of double-random phase encryption by amplitude modulation,” Opt. Lett. 33, 1575–1577 (2008).

[CrossRef]

R. Tao, J. Lang, and Y. Wang, “Optical image encryption based on the multiple- parameter fractional Fourier transform,” Opt. Lett. 33, 581–583 (2008).

[CrossRef]

G. Unnikrishnan, J. Joseph, and K. Singh, “Optical encryption by double-random phase encoding in the fractional Fourier domain,” Opt. Lett. 25, 887–889 (2000).

[CrossRef]

S. T. Liu, Q. Mi, and B. Zhu, “Optical image encryption with multi-stage and multi- channel fractional Fourier domain filtering,” Opt. Lett. 26, 1242–1244 (2001).

[CrossRef]

G. Situ and J. Zhang, “Multiple-image encryption by wavelength multiplexing,” Opt. Lett. 30, 1306–1307(2005).

[CrossRef]

B. M. Hennelly, T. J. Naughton, and J. Mcdonald, “Spread-space spread-spectrum technique for secure multiplexing,” Opt. Lett. 32, 1060–1062 (2007).

[CrossRef]

Z. J. Liu, Y. Zhang, H. F. Zhao, M. A. Ahmad, and S. T. Liu, “Optical multi-image encryption based on frequency shift,” Optik 122, 1010–1013 (2011).

[CrossRef]

W. M. Jin and C. J. Yan, “Optical image encryption based on multi-channel fractional Fourier transform and double random phase encoding technique,” Optik 118, 38–41(2007).

[CrossRef]