Image hiding based on circular geometric moiré

Authors:
Minvydas Ragulskis;Algiment Aleksa;Jurate Ragulskiene
Affiliations:
Department of Mathematical Research in Systems, Kaunas University of Technology, Kaunas, Lithuania;Department of Mathematical Research in Systems, Kaunas University of Technology, Kaunas, Lithuania;Department of Technical Sciences, Kauno Kolegija, Kaunas, Lithuania
Venue:
MATH'09 Proceedings of the 14th WSEAS International Conference on Applied mathematics
Year:
2009

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Abstract

Image hiding based on optical time-averaging moiré technique is presented in this paper. It is a new visual decoding scheme when the secret image is embedded into a circular moiré grating and can be interpreted by a naked eye only when the image is harmonically oscillated in an angular direction around a predefined axial point. Moreover, the secret image is visualized only at strictly defined amplitude of oscillations. Computational examples are used to demonstrate the functionality of the method.