Securing color image by using hyperchaotic system in gyrator transform domains

被引：17
作者：
Chen, Hang [1 ,2 ]
Tanougast, Camel [1 ]
Liu, Zhengjun [2 ]
Hao, Boya [3 ]
机构：
[1] Univ Lorraine, Lab Concept Optimisat & Modelisat Syst, F-57070 Metz, France
[2] Harbin Inst Technol, Dept Automat Measurement & Control, Harbin 150001, Peoples R China
[3] Res Inst Special Mech & Elect Technol Beijing, Beijing 100012, Peoples R China
来源：
OPTICAL AND QUANTUM ELECTRONICS | 2016年 / 48卷 / 08期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Color image encryption; Hyperchaotic; Cryptography; Optical transform; FRACTIONAL FOURIER-TRANSFORM; OPTICAL ENCRYPTION; PLAINTEXT ATTACK; FRESNEL DOMAIN; SCHEME; DECOMPOSITION; CHAOS;
D O I：
10.1007/s11082-016-0669-9
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：
A color image encryption scheme is proposed by using a hyperchaotic system in gyrator transform domains. The red, green and blue (RGB) components of the original color image are encoded into one dimensional stream, respectively. Four chaotic sequences generated by a hyperchaotic system are blended into the streams to synthesize complex sequences. Subsequently the one dimensional complex streams are scrambled by employing discrete cosine transform and then encoded back to image format. Finally, the scrambled complex functions are encoded and transformed in gyrator domains. The parameters in the hyperchaotic system and the gyrator optical system are regarded as the extra keys for improving the security of the proposed scheme. Some numerical simulations are made to test the validity and capability of the proposed color encryption algorithm.
引用
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页数：13
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