Image encryption based on double folding operation in fractional Fourier transform domain

Zhengjun Liu; Xiuying Wang; Shutian Liu

doi:10.1117/12.840091

17 November 2009 Image encryption based on double folding operation in fractional Fourier transform domain

Zhengjun Liu, Xiuying Wang, Shutian Liu

Proceedings Volume 7512, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security; 751202 (2009) https://doi.org/10.1117/12.840091
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

Based on fractional Fourier transform, the double folding operation is studied and introduced into image encryption. This method can implement a kind of the encoding with real number. This characteristic is convenient to the storage and transmission of the encrypted image. The corresponding experimental setup is similar to the scheme of double random phase encoding. With computer, some numerical simulations have been achieved. The analysis on the algorithm from the aspects of validity, security and robustness is made. The calculated results have been demonstrated that the algorithm is effective and has good security.

Citation Download Citation

Zhengjun Liu, Xiuying Wang, and Shutian Liu "Image encryption based on double folding operation in fractional Fourier transform domain", Proc. SPIE 7512, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security, 751202 (17 November 2009); https://doi.org/10.1117/12.840091

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KEYWORDS

Image encryption

Fractional fourier transform

Transform theory

Computer security

Image processing

Computer programming

Numerical simulations

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