A new method based on chaotic sequence for image encryption

被引:0
作者
Zheng, Z [1 ]
Wang, N [1 ]
机构
[1] Zhejiang Univ, Natl Key Lab Ind Control Technol, Hangzhou 310027, Peoples R China
来源
PHOTONICS AND IMAGING IN BIOLOGY AND MEDICINE | 2003年 / 5254卷
关键词
image encryption; chaotic sequence; logistic-map; discrete cosine transformation;
D O I
10.1117/12.546204
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
In this paper, a new method for image encryption based on chaotic system is proposed. An unpredictable chaotic sequence is generated by Logistic-map, and its characteristics of pseudo-random and sensitiveness to the initial condition helps to construct transformation matrix for image encryption. And two images are used together to encrypt each other in the proposed method for the sake of higher security. An example is used to demonstrate the effectiveness of the proposed method.
引用
收藏
页码:285 / 289
页数:5
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