Image Encryption Based on Random Fractional Discrete Cosine and Sine Transforms

被引：7

作者：

Zhao, Hui ^{[1
]}

Ran, Qiwen ^{[1
]}

Ge, Guixia ^{[1
]}

Ma, Jing ^{[1
]}

Tan, Liying ^{[1
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150006, Peoples R China

来源：

PROCEEDINGS OF THE FIRST INTERNATIONAL WORKSHOP ON EDUCATION TECHNOLOGY AND COMPUTER SCIENCE, VOL I | 2009年

关键词：

image encryption; fractional operator; discrete cosine transform; discrete sine transform; MATRICES; DCT; IV;

D O I：

10.1109/ETCS.2009.183

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We first give a new fractionalization of discrete cosine and sine transforms of types I, IV, V and VIII. The fractional discrete cosine and sine transforms with four random parameters are defined, to which we refer as random fractional discrete cosine and sine transforms. A novel image encryption algorithm based on random fractional discrete cosine or sine transform and random phase encoding technique is then proposed. Numerical Simulation results are presented to verify its validity and efficiency.

引用

页码：804 / 808

页数：5

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