High-rate quantization data hiding robust to arbitrary linear filtering attacks

Fernando Pérez-González; Carlos Mosquera; Marcos Alvarez; Reginald Lagendijk

doi:10.1117/12.642750

16 February 2006 High-rate quantization data hiding robust to arbitrary linear filtering attacks

Fernando Pérez-González, Carlos Mosquera, Marcos Alvarez, Reginald Lagendijk

Proceedings Volume 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII; 60720C (2006) https://doi.org/10.1117/12.642750
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

Rational Dither Modulation (RDM) is a high-rate data hiding method invariant to gain attacks. We propose an extension of RDM to construct a scheme that is robust to arbitrary linear time-invariant filtering attacks, as opposed to standard Dither Modulation (DM) which we show to be extremely sensitive to those attacks. The novel algorithm, named Discrete Fourier Transform RDM (DFT-RDM) basically works in the DFT domain, applying the RDM core on each frequency channel. We illustrate the feasibility of DFT-RDM by passing the watermarked signal through an implementation of a graphic equalizer: the average error probability is small enough to justify the feasibility of adding a coding with interleaving layer to DFT-RDM. Two easily implementable improvements are discussed: windowing and spreading. In particular, the latter is shown to lead to very large gains.

Citation Download Citation

Fernando Pérez-González, Carlos Mosquera, Marcos Alvarez, and Reginald Lagendijk "High-rate quantization data hiding robust to arbitrary linear filtering attacks", Proc. SPIE 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII, 60720C (16 February 2006); https://doi.org/10.1117/12.642750

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