Scalability evaluation of blind spread-spectrum image watermarking
Peter Meerwald and Andreas Uhl
7th International Workshop on Digital Watermarking, IWDW '08
Busan, South Korea; November 10 - 12, 2008
as BibTeX-file
conference program
Abstract
In this paper, we investigate the scalability aspect of blind
watermark detection under combined quality and resolution
adaption of JPEG2000 and JPEG coded bitstreams. We develop two
multi-channel watermarking schemes with blind detection, based on
additive spread-spectrum watermarking: one employs the DCT
domain, the other the DWT domain. We obtain watermark scalability
by combining detection results from multiple channels modeled by
Generalized Gaussian distributions. Both schemes achieve
incremental improvement of detection reliability as more data of
a scalable bitstream becomes available.
Links
Peter Meerwald, pmeerw@cosy.sbg.ac.at