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Proceedings Paper

The method for testing effectiveness of holographic security devices
Author(s): Jacek Janucki; Jan Owsik
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Paper Abstract

The method for evaluation of holographic security effectiveness has been developed. The use of the Wiener filter based method allows the holograms patterns to be identified from a printed page. Due to elimination of background influence on a correlation function of two analysed images it is possible to estimate a quality factor of a holographic device. The Wiener filter algorithm for numerical analysis of digital images has been proposed. On the basis of correlation analysis the quantitative quality coefficient of the holographic security has been defined.

Paper Details

Date Published: 29 December 2004
PDF: 6 pages
Proc. SPIE 5615, Technologies for Optical Countermeasures, (29 December 2004); doi: 10.1117/12.578018
Show Author Affiliations
Jacek Janucki, Military Univ. of Technology (Poland)
Jan Owsik, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5615:
Technologies for Optical Countermeasures
David H. Titterton, Editor(s)

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