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Journal of Optical Technology

Journal of Optical Technology


  • Vol. 72, Iss. 6 — Jun. 1, 2005
  • pp: 464–468

Holographic approach to embedding hidden watermarks in a photographic image

M. V. Smirnov  »View Author Affiliations

Journal of Optical Technology, Vol. 72, Issue 6, pp. 464-468 (2005)

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This paper presents a holographic approach to embedding hidden watermarks in photographic images. A physical interpretation is given of the processes of embedding and visualizing hidden watermarks. It is established that a Fourier transformation of watermarks embedded in the frequency domain with a shift relative to the coordinate origin is a digital Fourier hologram. An optimized method is developed for introducing watermarks, based on a Fourier hologram with a single sideband. Experimental studies on typical photographic equipment showed stable reconstruction of watermarks for Fourier holograms. © 2005 Optical Society of America

M. V. Smirnov, "Holographic approach to embedding hidden watermarks in a photographic image," J. Opt. Technol. 72, 464-468 (2005)

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