Optical image encryption based on the multiple-parameter fractional Fourier transform

被引：98
|
作者：
Tao, Ran [1 ]
Lang, Jun [1 ]
Wang, Yue [1 ]
机构：
[1] Beijing Inst Technol, Dept Elect Engn, Beijing 100081, Peoples R China
来源：
OPTICS LETTERS | 2008年 / 33卷 / 06期
关键词：
D O I：
10.1364/OL.33.000581
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel image encryption algorithm is proposed based on the multiple-parameter fractional Fourier transform, which is a generalized fractional Fourier transform, without the use of phase keys. The image is encrypted simply by performing a multiple-parameter fractional Fourier transform with four keys. Optical implementation is suggested. The method has been compared with existing methods and shows superior robustness to blind decryption. (C) 2008 Optical Society of America.
引用
收藏
页码：581 / 583
页数：3
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