Sciweavers

Share
MMSEC
2004
ACM

Key-dependency for a wavelet-based blind watermarking algorithm

9 years 6 months ago
Key-dependency for a wavelet-based blind watermarking algorithm
When a host image is watermarked multiple times by the same algorithm collisions can occur. This makes it difficult for an image to host multiple watermarks. But this hosting is necessary for an image distribution chain, where several persons all watermark the same image. Wavelet domain transformations provide several possibilities to customize the transformation process. We discuss the applicability of the methods of wavelet filter parametrization and wavelet packet decomposition for secret watermark embedding on the algorithm of Dugad et al. We conclude that filter parametrization is not suited while wavelet packet decomposition shows good results. Categories and Subject Descriptors K.4.1 [Computers and Society]: Intellectual property rights—Digital Watermarking; I.4.0 [Image Processing and Computer Vision]: General—Image Processing Software General Terms Security Keywords Blind watermarking, wavelet packets, parameterized wavelet filters, multiple watermarking
Michael Brachtl, Andreas Uhl, Werner Dietl
Added 30 Jun 2010
Updated 30 Jun 2010
Type Conference
Year 2004
Where MMSEC
Authors Michael Brachtl, Andreas Uhl, Werner Dietl
Comments (0)
books