Optical encryption of gray image based on the computer generated hologram and logical modulation

Hui Ren; Jun Wang; Qiong-hua Wang

doi:10.1117/12.2266651

10 February 2017 Optical encryption of gray image based on the computer generated hologram and logical modulation

Hui Ren, Jun Wang, Qiong-hua Wang

Proceedings Volume 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016); 102502P (2017) https://doi.org/10.1117/12.2266651
Event: Fourth International Conference on Optical and Photonics Engineering, 2016, Chengdu, China

Abstract

In this paper, we proposed a novel optical encryption and decryption method of gray image based on the computer-generated hologram (CGH), the chaos theory and the logical modulation. In the encryption process, the hologram, which is gotten by Fresnel diffraction from the gray image, is modulated with the chaotic sequence, and the output is encryption image. The decryption is an inverse process of encryption. Experiment results verified the security and robustness of the proposed approach. Moreover, the proposed encryption method could be applied in where requires more security and more flexibility as the field of national defense science and technology.

Citation Download Citation

Hui Ren, Jun Wang, and Qiong-hua Wang "Optical encryption of gray image based on the computer generated hologram and logical modulation", Proc. SPIE 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016), 102502P (10 February 2017); https://doi.org/10.1117/12.2266651

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