Double-image encryption based on iterative gyrator transform

被引：76

作者：

Li, Huijuan ^{[1
]}

Wang, Yurong ^{[2
]}

机构：

[1] Shandong Agr Univ, Sch Informat Sci & Engn, Tai An 271018, Shandong, Peoples R China

[2] Shandong Univ, Sch Informat Sci & Engn, Dept Opt, Jinan 250100, Shandong, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2008年 / 281卷 / 23期

关键词：

Image encryption; Gyrator transform; Iterative algorithm;

D O I：

10.1016/j.optcom.2008.09.001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel double-image encryption algorithm is proposed, which can simultaneously encrypt two images into a single one as the amplitude of gyrator transform with two different groups of angles. The two original images can be retrieved independently by gyrator transforms with two different groups of angles, one common phase mask, and two different private phase masks. The proposed approach can enlarge the key space, achieve faster convergence in iterative process, and avoid cross-talk between two images in reconstruction. Numerical simulations are presented to verify its validity and efficiency. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：5745 / 5749

页数：5

共 20 条

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