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http://dx.doi.org/10.9723/jksiis.2017.22.4.001

Double Encryption of Digital Hologram Based on Phase-Shifting Digital Holography and Digital Watermarking  

Kim, Cheol-Su (경주대학교 전기에너지컴퓨터공학과)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.22, no.4, 2017 , pp. 1-9 More about this Journal
Abstract
In this Paper, Double Encryption Technology Based on Phase-Shifting Digital Holography and Digital Watermarking is Proposed. For the Purpose, we First Set a Logo Image to be used for Digital Watermark and Design a Binary Phase Computer Generated Hologram for this Logo Image using an Iterative Algorithm. And Random Generated Binary Phase Mask to be set as a Watermark and Key Image is Obtained through XOR Operation between Binary Phase CGH and Random Binary Phase Mask. Object Image is Phase Modulated to be a Constant Amplitude and Multiplied with Binary Phase Mask to Generate Object Wave. This Object Wave can be said to be a First Encrypted Image Having a Pattern Similar to the Noise Including the Watermark Information. Finally, we Interfere the First Encrypted Image with Reference Wave using 2-step PSDH and get a Good Visible Interference Pattern to be Called Second Encrypted Image. The Decryption Process is Proceeded with Fresnel Transform and Inverse Process of First Encryption Process After Appropriate Arithmetic Operation with Two Encrypted Images. The Proposed Encryption and Decryption Process is Confirmed through the Computer Simulations.
Keywords
Phase-Shifting Digital Holography; Digital Watermarking; Binary Phase Computer Generated Hologram; Double Encryption Technology;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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