Image hiding based on time-averaged fringes produced by non-harmonic oscillations
Minvydas Kazys Ragulskis, Algiment Aleksa, Zenonas Navickas · Journal of Optics A Pure and Applied Optics · 2009
Image hiding based on time-averaged fringes produced by non-harmonic oscillations is presented in this paper. The secret image is embedded into the background moire 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.