Image encryption with fractional wavelet packet method

被引：58

作者：

Chen, Linfei ^{[1
]}

Zhao, Daomu ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

来源：

OPTIK | 2008年 / 119卷 / 06期

基金：

中国国家自然科学基金;

关键词：

image encryption; decryption; wavelet packet transform; fractional Fourier transform; fractional wavelet packet transform;

D O I：

10.1016/j.ijleo.2006.11.005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce a new method called fractional wavelet packet transform to encrypt images in this paper, in which fractional orders and wavelet packet filter are its two series of keys. Fractional orders are additional keys in this method compared to wavelet packet encryptions. Selected image encryption is also proposed in this paper, and it is quite more flexible and effective than wavelet, fractional wavelet or wavelet packet encryptions. The possible optical implementation and digital computation are proposed. Computer simulations prove its feasibility. (C) 2007 Elsevier GmbH. All rights reserved.

引用

页码：286 / 291

页数：6

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