Image hiding based on circular moiré fringes

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:
WSEAS Transactions on Mathematics
Year:
2010

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Abstract

Circular time-averaging moiré technique is exploited to hide an image in a background moiré grating. The secret image can be visualized when the encoded image is oscillated around a pre-defined axial point. 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. The encoded secret image is not shared into components; this is a one image method. Computational examples are used to demonstrate the functionality of the method. The property of the human visual system to average fast dynamical processes being not able to follow rapid oscillatory motions is exploited to decode the secret image.