Watermark security via wavelet filter parametrization
Peter Meerwald und Andreas Uhl
paper submitted January 4, 2001, accepted April 10, 2001
final paper submitted May 15, 2001, presentation October 8, 2001
IEEE Signal Processing Society 2001 International Conference on Image
Processing
Thessaloniki, Greece
October 7-10, 2001
as BibTeX-file
conference program
Abstract
In this paper, we propose to use secret, key-dependent parametric wavelet
filters to improve the security of digital watermarking schemes operating
in the wavelet transform domain. We show that the parametrization
of wavelet filters can be easily integrated into existing wavelet-based
watermarking algorithms, resulting in improved security without additional
computational complexity. Both, robustness and imperceptibility are
adequate for many applications.
Links
Available in Acrobat (.pdf, zipped) und Postscript (.ps.gz, gzipped)
format. The poster presentation is available as Acrobat (.pdf, zipped)
.
Peter Meerwald, pmeerw@cosy.sbg.ac.at