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[CrossRef]

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[CrossRef]

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[CrossRef]

G. H. Lin, H. T. Chang, W. N. Lai, and C. H. Chuang, “Public-key-based optical image cryptosystem with data embedding techniques,” Opt. Eng. 42, 2331–2339 (2003).

[CrossRef]

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[CrossRef]

X. Peng, L. F. Yu, and L. L. Cai, “Double-lock for image encryption with virtual optical wavelength,” Opt. Express 10, 41–45 (2002).

[CrossRef]

H. T. Chang and C. C. Chen, “Fully phase asymmetric image verification system based on joint transform correlator,” Opt. Express 14, 1458–1467 (2006).

[CrossRef]

X. Deng and D. Zhao, “Single-channel color image encryption based on asymmetric cryptosystem,” Opt. Laser Technol. 44, 136–140 (2012).

[CrossRef]

X. Deng and D. Zhao, “Multiple-image encryption using phase retrieve algorithm and inter-modulation in Fourier domain,” Opt. Laser Technol. 44, 374–377 (2012).

[CrossRef]

N. Singh and A. Sinha, “Optical image encryption using fractional Fourier transform and chaos,” Opt. Lasers. Eng. 46, 117–123 (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).

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[CrossRef]