Abstract

A novel fully phase color image encryption/decryption scheme based on joint fractional Fourier transform correlator (JFRTC) and phase retrieval algorithm (PRA) is proposed. The security of the system is enhanced by the fractional order as a new added key. This method takes full advantage of the parallel processing features of the optical system and could optically realize single-channel color image encryption. The system and operation procedures are simplified. The simulation results of a color image indicate that the new method provides efficient solutions with a strong sense of security.

© 2011 Chinese Optics Letters

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M. Joshi, C. Shakher, and K. Singh, Opt. Commun. 279, 35 (2007).

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N. Zhou, T. Dong, and J. Wu, Opt. Commun. 283, 3037 (2010).

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Acta Opt. Sin. (in Chinese) (1)

Y. Shi and J. Zhang, Acta Opt. Sin. (in Chinese) 29, 2705 (2009).

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X. P. Yang, L. J. Gao, X. L. Wang, H. C. Zhai, and M. W. Wang, Acta Phys. Sin. (in Chinese) 58, 1662 (2009).

Chin. Opt. Lett. (2)

Opt. Commun. (3)

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N. Zhou, T. Dong, and J. Wu, Opt. Commun. 283, 3037 (2010).

Opt. Eng. (1)

G. Unnikrishnan and K. Singh, Opt. Eng. 39, 2853 (2000).

Opt. Express (4)

Opt. Lett. (1)

Proc. SPIE (1)

J. Zhao, H. Lu, and Q. Fan, Proc. SPIE 6279, 62793B (2007).

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