Privatissimum: QIM Watermarking in the JPEG2000 Coding Pipeline
6. December 2000
Abstract
In this paper, we propose a blind watermarking method integrated in
the JPEG2000 coding pipeline. Prior to the entropy coding stage, the
binary watermark is placed in the independent code-blocks using
Quantization
Index Modulation (QIM). The quantization strategy allows to embed
data in the low-resolution detail subbands as well as in the residual
image. Watermark recovery is performed without reference to the original
image during image decompression. The proposed embedding scheme is
robust to compression and other image processing attacks. We demonstrate
two application scenarios: image authentication and copyright protection.
Keywords
digital watermarking, quantization, QIM, dither modulation,
JPEG2000, robustness, image authentication, data hiding
Links
Foils of the presentation are available inAcrobat (.pdf, zipped) and Postscript (.ps.gz, gzipped) format.
Peter Meerwald, pmeerw@cosy.sbg.ac.at
