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Journal of Electronic Imaging

Robust watermarking procedure based on JPEG discrete cosine transform image compression
Author(s): Srdjan Stankovic; Irena Orovic; Nikola Zaric
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Paper Abstract

A new procedure for watermarking in the 8×8 block-based discrete cosine transform (DCT) domain (used for JPEG compression) is proposed. The influence of JPEG quantization on watermarked coefficients and on watermark is considered. The criterion for coefficients selection is derived, providing robustness for an arbitrary quantization degree. The modified form of coefficients probability density function (pdf) leads to the class of modified optimal detectors. Theoretical results are illustrated on various examples. Efficiency of the proposed procedure is shown in the presence of different quantization degrees, and other common attacks.

Paper Details

Date Published: 1 October 2008
PDF: 9 pages
J. Electron. Imag. 17(4) 043001 doi: 10.1117/1.2981832
Published in: Journal of Electronic Imaging Volume 17, Issue 4
Show Author Affiliations
Srdjan Stankovic, Univ. of Montenegro (Montenegro)
Irena Orovic, Univ. of Montenegro (Montenegro)
Nikola Zaric, Univ. of Montenegro (Montenegro)

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