DCT Domain Image Encryption Algorithm based on Lorenz Chaotic System

被引：0
|
作者：
Yan, Xu [1 ]
机构：
[1] Hunan Inst Sci & Technol, Coll Comp Sci, Yueyang, Peoples R China
来源：
MECHATRONICS ENGINEERING, COMPUTING AND INFORMATION TECHNOLOGY | 2014年 / 556-562卷
关键词：
Lorenz chaotic system; DCT transform; Image encryption;
D O I：
10.4028/www.scientific.net/AMM.556-562.5168
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The author proposes a novel DCT domain image encryption algorithm based on Lorenz chaotic system. The paper firstly subdivides digital image into sub-images, each of which is transformed with DCT transform. Then some DCT transform coefficients are selected with filtering. Finally the retained DCT transform coefficients are cross encrypted with three chaotic sequences which Lorenz chaotic system generates. Simulation experiments and secure performance analysis show that the algorithm has a good encryption effect and anti-attack abilities.
引用
收藏
页码：5168 / 5171
页数：4
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