M Ragulskis et al 2009 J. Opt. A: Pure Appl. Opt. 11 125411 doi:10.1088/1464-4258/11/12/125411
M Ragulskis1, A Aleksa1 and Z Navickas2
Show affiliationsImage hiding based on time-averaged fringes produced by non-harmonic oscillations is presented in this paper. The secret image is embedded into the background moiré grating. Phase matching and initial stochastic phase deflection algorithms are used to encrypt the image. The decoding of the image is completely visual. The secret embedded image appears when the encrypted image is oscillated according to a predefined law of motion. No secret is leaked when the encrypted image is oscillated harmonically. Numerical experiments are used to illustrate the functionality of the method.
Issue 12 (December 2009)
Received 30 June 2009, accepted for publication 8 September 2009
Published 30 September 2009
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