Single channel encryption of color image based on compressed sensing and tricolor grating

Xiaoyong Liu; Pei Lu; Qin Shi; Juan Hou; Xueyan Wang; Di Sun

doi:10.1117/12.2547705

20 December 2019 Single channel encryption of color image based on compressed sensing and tricolor grating

Xiaoyong Liu, Pei Lu, Qin Shi, Juan Hou, Xueyan Wang, Di Sun

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112091Y (2019) https://doi.org/10.1117/12.2547705
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

In the paper a single channel color image encryption method based on compressed sensing (CS) was proposed. Firstly, a color image was modulated to the gray images by using a tricolor grating, and then the spectrum of the gray images was encrypted by applying CS technology, and regards the measurement matrix as a key. Decryption by choosing suitable filtering window, extract the R, G, B gray image spectrum reconstruction, finally achieved the reconstruction of the original color image. The simulation results indicate that this encryption method can effectively reduce the amount of sampling data, reduce the burden of subsequent storage, transmission and processing information. At the same time, it can increase the key space, and effectively improve the security of encryption.

Citation Download Citation

Xiaoyong Liu, Pei Lu, Qin Shi, Juan Hou, Xueyan Wang, and Di Sun "Single channel encryption of color image based on compressed sensing and tricolor grating", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112091Y (20 December 2019); https://doi.org/10.1117/12.2547705

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KEYWORDS

Compressed sensing

Image encryption

Image processing

Modulation

Fourier transforms

Image filtering

Optical filters

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