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- W2884294014 abstract "This paper proposes a method of double image encryption based on hybrid structured phase mask (HSPM) in the gyrator transform (GT) domain. The scheme becomes more secure by parameters used in the HSPM. These HSPMs are generated by using the combination of the optical vortex phase masks and secondary images after taking Fourier transform (FT). The input images are encrypted and recovered with correct values of HSPMs, rotation angles of GT and their keys used during the encryption. The use of an HSPM-based phase mask increases the security and key space for encryption. It can also be implemented opto-electronically. The mean square error calculated between the input and retrieved images shows the efficacy of scheme. The proposed method has also been investigated for its sensitivity to encryption parameters and its security against occlusion and noise attacks under a number of iterations. A set of numerical simulation results support the feasibility and security of the proposed scheme." @default.
- W2884294014 created "2018-08-03" @default.
- W2884294014 creator A5040428944 @default.
- W2884294014 date "2018-07-17" @default.
- W2884294014 modified "2023-10-03" @default.
- W2884294014 title "Hybrid structured phase mask in frequency plane for optical double image encryption in gyrator transform domain" @default.
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- W2884294014 doi "https://doi.org/10.1080/09500340.2018.1496286" @default.
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