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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 8 — Aug. 1, 2006
  • pp: 1870–1874

Fast algorithm of phase masks for image encryption in the Fresnel domain

Hone-Ene Hwang and Pin Han  »View Author Affiliations

JOSA A, Vol. 23, Issue 8, pp. 1870-1874 (2006)

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A high performance lensless optical security system based on the discrete Fresnel transform is presented. Two phase-only masks are generated with what we believe to be a novel and efficient algorithm. Their position coordinates and the wavelength are used as encoding parameters in the encryption process. Compared with previous studies, the main advantage of this proposed encryption system is that it does not need any iterative algorithms to produce the masks, and that makes it very efficient and easy to implement without losing the encryption security.

© 2006 Optical Society of America

OCIS Codes
(070.4560) Fourier optics and signal processing : Data processing by optical means
(100.2000) Image processing : Digital image processing
(200.4740) Optics in computing : Optical processing

ToC Category:
Fourier Optics and Optical Signal Processing

Original Manuscript: November 4, 2005
Revised Manuscript: February 7, 2006
Manuscript Accepted: February 10, 2006

Hone-Ene Hwang and Pin Han, "Fast algorithm of phase masks for image encryption in the Fresnel domain," J. Opt. Soc. Am. A 23, 1870-1874 (2006)

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