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  • Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM
  • OSA Technical Digest (CD) (Optica Publishing Group, 2007),
  • paper DTuB9
  • https://doi.org/10.1364/DH.2007.DTuB9

Joint Image Encryption and Multiplexing by Use of Non-negative Matrix Factorization Adopting Digital Holography

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In this paper, a joint multiple-image encryption and multiplexing system, which utilizes both the nonnegative matrix factorization (NMF) scheme and digital holography, is proposed. A number of images are transformed into digital holograms, which are then decomposed into the basis images of a defined number and the corresponding weighting matrix using the NMF scheme. In the proposed encryption system, the basis images and the column vector in the weighting matrix serve as the lock and the key for a specific image, respectively. The uniformity of the column weighting factors enhances the security of the distributed keys. The simulation results shows that the proposed method can successfully perform multiple-image encryption with high enough security.

© 2007 Optical Society of America

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