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- W2046323006 abstract "A novel method for color-information security system based on joint-extended gyrator transform correlator is introduced. In this method, the color image is split into three-color channels: red, green, blue. Each color channel bonded to a random phase mask and a random phase key code are gyrator transformed separately. The two obtained information multiplexed to form a joint gyrator power spectrum, which is again gyrator transformed to get a joint-extended gyrator power spectrum. The same phase key code is used in both the data encryption and decryption. The three-color channels are independently encrypted and decrypted to avoid the interference of crosstalks. The decrypted image is obtained without any noise and distortion. The angle parameters of gyrator transform in each channel are additional encryption keys for enhancing the security. The proposed system has resistant against chosen- and known plaintext attacks. The calculated values of mean square error and peak signal-to-noise ratio support the noise-free recovery of original color image. The implementation of opto-electronic setup has been proposed. The validity and feasibility of the proposed method are demonstrated by numerical simulations." @default.
- W2046323006 created "2016-06-24" @default.
- W2046323006 creator A5000247045 @default.
- W2046323006 date "2013-03-01" @default.
- W2046323006 modified "2023-09-25" @default.
- W2046323006 title "Noise-free recovery of color information using a joint-extended gyrator transform correlator" @default.
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- W2046323006 doi "https://doi.org/10.1016/j.optlaseng.2012.10.007" @default.
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