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Article Dans Une Revue Optics Express Année : 2014

Double color image encryption using iterative phase retrieval algorithm in quaternion gyrator domain

Résumé

This paper describes a novel algorithm to encrypt double color images into a single undistinguishable image in quaternion gyrator domain. By using an iterative phase retrieval algorithm, the phase masks used for encryption are obtained. Subsequently, the encrypted image is generated via cascaded quaternion gyrator transforms with different rotation angles. The parameters in quaternion gyrator transforms and phases serve as encryption keys. By knowing these keys, the original color images can be fully restituted. Numerical simulations have demonstrated the validity of the proposed encryption system as well as its robustness against loss of data and additive Gaussian noise.
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Dates et versions

inserm-00951570 , version 1 (25-02-2014)

Identifiants

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Zhuhong Shao, Huazhong Shu, Jiasong Wu, Zhifang Dong, Gouenou Coatrieux, et al.. Double color image encryption using iterative phase retrieval algorithm in quaternion gyrator domain. Optics Express, 2014, 22 (5), pp.4932. ⟨10.1364/OE.22.004932⟩. ⟨inserm-00951570⟩
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