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Proceedings Paper

Improved image copyright protection scheme exploiting visual cryptography in wavelet domain
Author(s): A. Meneghetti; G. Boato; F. G. B. De Natale
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Paper Abstract

The last few years have seen a massive increment in the use of the Internet as a channel for sharing and transmitting data, thus requiring the need for copyright protection schemes able to preserve the ownership of the data. The idea of embedding a watermark directly in the data is however unacceptable in various fields of application, due to the intrinsic degradation introduced by non reversible watermarking schemes. Hence some zero watermarking schemes have been developed. In this work we propose an optimization of a recent watermarking method based on visual cryptography, by improving results against most commont types of attacks and achieving a higher perceptual quality of the extracted mark.

Paper Details

Date Published: 19 February 2013
PDF: 8 pages
Proc. SPIE 8655, Image Processing: Algorithms and Systems XI, 865504 (19 February 2013); doi: 10.1117/12.2005070
Show Author Affiliations
A. Meneghetti, Univ. degli Studi di Trento (Italy)
G. Boato, Univ. degli Studi di Trento (Italy)
F. G. B. De Natale, Univ. degli Studi di Trento (Italy)


Published in SPIE Proceedings Vol. 8655:
Image Processing: Algorithms and Systems XI
Karen O. Egiazarian; Sos S. Agaian; Atanas P. Gotchev, Editor(s)

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