Classification of watermarking schemes robust against loss of synchronization

Damien Delannay; Benoit Macq

doi:10.1117/12.526881

22 June 2004 Classification of watermarking schemes robust against loss of synchronization

Damien Delannay, Benoit Macq

Proceedings Volume 5306, Security, Steganography, and Watermarking of Multimedia Contents VI; (2004) https://doi.org/10.1117/12.526881
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

The resistance of watermarking schemes against geometrical distortions has been the subject of quite much research in the last ten years. The ability for a communication scheme to cope with a loss of synchronization is indeed a very difficult issue. Still, the tolerance of the human visual perception in presence of such distortions is surprisingly high and situations where loss of synchronization takes place are numerous. The aim of this paper is to present an extensive survey of existing works addressing this particular problem. Each of the proposed class of techniques will be analyzed to show which forms and what severity of distortions it is able to survive. The possible security implications of the proposed techniques will also be studied. We will try to point out the strengths and weaknesses of each solution. Special attention will be given to implementation details such as cropping operation which is subsequent to most geometrical distortions. Partial loss of content, change of width to height ratio or modification of the image size have important consequence on some proposed schemes. We will also briefly discuss the difficulty to evaluate the severity of a geometrical distortion.

Citation Download Citation

Damien Delannay and Benoit Macq "Classification of watermarking schemes robust against loss of synchronization", Proc. SPIE 5306, Security, Steganography, and Watermarking of Multimedia Contents VI, (22 June 2004); https://doi.org/10.1117/12.526881

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