Double image encryption based on discrete multiple-parameter fractional Fourier transform and chaotic maps

被引：56
|
作者：
Shan, Mingguang [1 ]
Chang, Jie [1 ]
Zhong, Zhi [1 ]
Hao, Bengong [1 ]
机构：
[1] Harbin Engn Univ, Coll Informat & Commun Engn, Harbin 150001, Heilongjiang, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2012年 / 285卷 / 21-22期
基金：
中国国家自然科学基金; 黑龙江省自然科学基金;
关键词：
Image encryption; Discrete multiple-parameter fractional; Fourier transform; Chaotic map; DOMAIN;
D O I：
10.1016/j.optcom.2012.06.023
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A double image encryption method is proposed by utilizing discrete multiple-parameter fractional Fourier transform and chaotic maps. One of the two original images scrambled by one chaotic map is encoded into the amplitude of a complex signal with the other original image as its phase. The complex signal multiplied by another chaotic random phase mask is then encrypted by discrete multiple-parameter fractional Fourier transform. The parameters in chaotic map and discrete multiple-parameter fractional Fourier transform serve as the keys of this encryption scheme. Numerical simulations have been done to demonstrate the performance of this algorithm. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：4227 / 4234
页数：8
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