Color image encryption based on joint fractional Fourier transform correlator and phase retrieval algorithm

被引：0
|
作者：
Lu, Ding [1 ]
Jin, Weimin [1 ]
机构：
[1] Zhejiang Normal Univ, Inst Informat Opt, Jinhua 321004, Peoples R China
来源：
INFORMATION OPTICS AND OPTICAL DATA STORAGE | 2010年 / 7851卷
关键词：
color image; joint fractional Fourier transform correlator; phase retrieval algorithm; encryption; SECURITY; DOMAIN; ARCHITECTURE; DECRYPTION; HOLOGRAMS;
D O I：
10.1117/12.868376
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 novel single-channel color image encryption technique based on joint fractional Fourier transform correlator(JFRTC) and phase retrieval algorithm (PRA) is proposed. The target color image is decomposed into three red, green, blue (RGB) components. A joint image is formed and encoded into two random phase masks (RPM) iteratively. The security of the system is enhanced because of the fractional order as a new added key. The system and the operation procedure are simplified. Simulation experiments show that the algorithm converges rapidly and has great design flexibility. The decryption can be realized by digital or optical methods.
引用
收藏
页数：9
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