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Optical Engineering

Image encryption based on random scrambling of the amplitude and phase in the frequency domain
Author(s): Zhengjun Liu; Quiming Li; Jingmin Dai; Xiaoyi Zhao; Xiaogang Sun; Shutian Liu; Muhammad Ashfaq Ahmad
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Paper Abstract

We propose an image encryption algorithm by using random position scrambling of the amplitude and phase functions in the frequency domain of optical transform. The positions of amplitude and phase data are scrambled randomly in the horizontal or vertical direction. The random position orders can be regarded as the key of the algorithm. Moreover, random phase encoding is not used in the proposed algorithm. A feasible optical implementation of the encryption algorithm is given. Some numerical simulations have demonstrated the capability of the algorithm.

Paper Details

Date Published: 1 August 2009
PDF: 6 pages
Opt. Eng. 48(8) 087005 doi: 10.1117/1.3204003
Published in: Optical Engineering Volume 48, Issue 8
Show Author Affiliations
Zhengjun Liu, Harbin Institute of Technology (China)
Quiming Li, Harbin Institute of Technology (China)
Jingmin Dai, Harbin Institute of Technology (China)
Xiaoyi Zhao, Harbin Institute of Technology (China)
Xiaogang Sun, Harbin Institute of Technology (China)
Shutian Liu, Harbin Institute of Technology (China)
Muhammad Ashfaq Ahmad, COMSATS Institute of Information Technology (Pakistan)


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