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Proceedings Paper

Wavelet-based method for high-frequency subband watermark embedding
Author(s): Patrizio Campisi; Alessandro Neri; Marco Visconti
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Paper Abstract

In this paper a novel wavelet based robust blind watermarking scheme is presented. Taking into account the property of the human visual system, the proposed scheme embeds the watermark into the wavelet coefficients representative of the image's areas highly dense of details. More specifically a two stages unconventional wavelet decomposition is used. In fact, after having performed a 2D one-level wavelet decomposition, the high frequency wavelet subbands are further wavelet decomposed, thus obtaining those coefficients where the mark is finally embedded. Experimental results demonstrate that this embedding strategy allows to greatly increase the local ratio between the mark and the original image energies, thus leading to robustness even against severe image degradations, without transparency loss.

Paper Details

Date Published: 22 March 2001
PDF: 10 pages
Proc. SPIE 4209, Multimedia Systems and Applications III, (22 March 2001); doi: 10.1117/12.420837
Show Author Affiliations
Patrizio Campisi, Univ. of Roma Tre (Italy)
Alessandro Neri, Univ. of Roma Tre (Italy)
Marco Visconti, Univ. of Roma Tre (Italy)

Published in SPIE Proceedings Vol. 4209:
Multimedia Systems and Applications III
Andrew G. Tescher; Bhaskaran Vasudev; V. Michael Bove Jr., Editor(s)

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