Double image encryption based on iterative fractional Fourier transform

被引：203

作者：

Liu, Zhengjun ^{[1
]}

Liu, Shutian ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2007年 / 275卷 / 02期

基金：

中国国家自然科学基金;

关键词：

fractional Fourier transform; encryption and decryption cryptography;

D O I：

10.1016/j.optcom.2007.03.039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an image encryption algorithm to simultaneously encrypt two images into a single one as the amplitudes of fractional Fourier transform with different orders. From the encrypted image we can get two original images independently by fractional Fourier transforms with two different fractional orders. This algorithm can be independent of additional random phases as the encryption/decryption keys. Numerical results are given to analyze the capability of this proposed method. A possible extension to multi-image encryption with a fractional order multiplexing scheme has also been given. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：324 / 329

页数：6

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