Attack characterization for effective watermarking
Kundur, D.
Hatzinakos, D.
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont.;
This paper appears in: Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Publication Date: 1999
Volume: 2,
On page(s): 240-244 vol.2
Meeting Date: 10/24/1999 - 10/28/1999
Location: Kobe, Japan
ISBN: 0-7803-5467-2
References Cited: 9
INSPEC Accession Number: 6514193
Digital Object Identifier: 10.1109/ICIP.1999.822892
Current Version Published: 2002-08-06
Abstract
We present and analyze an approach to improve the performance of a
broad class of watermarking schemes through attack characterization.
Traditional robust watermarking methods use little information
concerning the way in which the image is tampered to estimate the
embedded watermark. In our novel scheme we propose adding two types of
watermarks: reference and robust. The reference watermark is used to
assess the way in which the marked image has been modified so that the
robust watermark can be optimally extracted to maximize security.
Analysis and simulation results are provided to demonstrate the
significant performance improvement when the proposed approach is
employed in an existing watermarking scheme
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