TY - GEN
T1 - Combating desynchronization attacks on blind watermarking systems
T2 - 2009 IEEE International Conference on Image Processing, ICIP 2009
AU - Sadasivam, Shankar
AU - Moulin, Pierre
PY - 2009
Y1 - 2009
N2 - We address the question of constructing practical blind watermark decoders that are resilient to scaling and amplitude modulation attacks. We cast the watermark decoding problem as a probabilistic inference problem on a factor graph and solve it via message passing. Our decoder performs nearly as well as a decoder that has exact knowledge of the desynchronization parameters. Experimental results, on both synthetic and natural images, suggest that the decoding algorithm is capable of handling moderate to strong desynchronization attacks very well.
AB - We address the question of constructing practical blind watermark decoders that are resilient to scaling and amplitude modulation attacks. We cast the watermark decoding problem as a probabilistic inference problem on a factor graph and solve it via message passing. Our decoder performs nearly as well as a decoder that has exact knowledge of the desynchronization parameters. Experimental results, on both synthetic and natural images, suggest that the decoding algorithm is capable of handling moderate to strong desynchronization attacks very well.
KW - Desynchronization attacks
KW - Forney-style factor graphs
KW - Markov random fields
KW - Watermarking
UR - http://www.scopus.com/inward/record.url?scp=77951943714&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951943714&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2009.5414272
DO - 10.1109/ICIP.2009.5414272
M3 - Conference contribution
AN - SCOPUS:77951943714
SN - 9781424456543
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 3641
EP - 3644
BT - 2009 IEEE International Conference on Image Processing, ICIP 2009 - Proceedings
PB - IEEE Computer Society
Y2 - 7 November 2009 through 10 November 2009
ER -