Color image encryption based on joint fractional Fourier transform correlator

Ding Lu; Weimin Jin

doi:10.1117/1.3590724

1 June 2011 Color image encryption based on joint fractional Fourier transform correlator

Ding Lu, Weimin Jin

Author Affiliations +

Optical Engineering, Vol. 50, Issue 6, 068201 (June 2011). https://doi.org/10.1117/1.3590724

Abstract

In this paper, an optical color image encryption/decryption technology based on joint fractional Fourier transform correlator and double random phase encoding (DRPE) is developed. In this method, the joint fractional power spectrum of the image to be encrypted and the key codes is recorded as the encrypted data. Different from the case with classical DRPE, the same key code was used both in the encryption and decryption. The security of the system is enhanced because of 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 experimental results indicate that the new method is feasible.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Ding Lu and Weimin Jin "Color image encryption based on joint fractional Fourier transform correlator," Optical Engineering 50(6), 068201 (1 June 2011). https://doi.org/10.1117/1.3590724

Published: 1 June 2011

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