Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optlastec.2009.08.016
Title: Color image encryption based on interference and virtual optics
Authors: Tay, C.J. 
Quan, C. 
Chen, W. 
Fu, Y. 
Keywords: Color image encryption
Fractional Fourier transform (FRFT)
Interference
Issue Date: Mar-2010
Source: Tay, C.J., Quan, C., Chen, W., Fu, Y. (2010-03). Color image encryption based on interference and virtual optics. Optics and Laser Technology 42 (2) : 409-415. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optlastec.2009.08.016
Abstract: We propose two approaches to encrypt color images based on interference and virtual optics. In the first method, a color image is first decomposed into three independent channels, i.e., red, green and blue. Each channel of the input image is encrypted into two random phase-only masks based on interference. In the second method, a color image is first converted into an image matrix and a color map, and only the image matrix is encrypted into random-phase masks based on interference. After the phase masks are retrieved, a concept based on virtual optics is further applied to enhance the security level. Numerical simulations are demonstrated to show the feasibility and effectiveness of the proposed methods. © 2009 Elsevier Ltd. All rights reserved.
Source Title: Optics and Laser Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/55323
ISSN: 00303992
DOI: 10.1016/j.optlastec.2009.08.016
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