Color image watermarking using channel-state knowledge

Josep Vidal; Maribel Madueno; Elisa Sayrol

doi:10.1117/12.465278

29 April 2002 Color image watermarking using channel-state knowledge

Josep Vidal, Maribel Madueno, Elisa Sayrol

Proceedings Volume 4675, Security and Watermarking of Multimedia Contents IV; (2002) https://doi.org/10.1117/12.465278
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

This work concentrates on the problem of watermarking embedding and blind optimum detection in full-frame DCT domain using channel-state knowledge concepts. Minimum length sequences are used to embed the watermark information in the color components. Each chip of the sequence is inserted in a random-like fashion in those coefficients that ensure imperceptibility, robustness and a very low probability of error in detection. As it will be shown the power of the watermark has to be distributed among the symbols not only considering imperceptibility but also to improve the detection process. Furthermore, two solutions are proposed to improve the robustness against cropping operations.

Citation Download Citation

Josep Vidal, Maribel Madueno, and Elisa Sayrol "Color image watermarking using channel-state knowledge", Proc. SPIE 4675, Security and Watermarking of Multimedia Contents IV, (29 April 2002); https://doi.org/10.1117/12.465278

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