Robustness improvement of known-host-state data-hiding using host statistics
نویسندگان
چکیده
منابع مشابه
Robustness improvement of known-host-state data-hiding using host statistics
In this paper we considered the problem of performance improvement of known-host-state (quantization-based) watermarking methods undergo additive white Gaussian noise (AWGN) and uniform noise attacks. We question the optimality of uniform high rate quantizer based design of dither modulation and distortion compensate dither modulation methods from their robustness to these attacks point of view...
متن کاملRobustness improvement of known-host-state watermarking using host statistics
In this paper we consider the problem of performance improvement of known-host-state (quantization-based) watermarking methods undergo Additive White Gaussian noise (AWGN) and uniform noise attacks. We question the optimality of uniform high-rate quantizer based design of Dither Modulation and Distortion Compensated Dither Modulation methods from their robustness to these attacks point of view ...
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In this paper, we extend a traditional robust datahiding set-up with host state at the encoder to a case when a partial side information about host statistics is also available at the decoder. We demonstrate that the knowledge of host statistics at the decoder can relax the critical requirements of random binning-based methods concerning attack channel statistics at the encoder. We also analyze...
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A new technique for embedding image data that can be recovered in the absence of the original host image, is presented. The data to be embedded, referred to as the signature data, is inserted into the host image in the DCT domain. The signature DCT coefficients are encoded using a lattice coding scheme before embedding. Each block of host DCT coefficients is first checked for its texture conten...
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A considerable amount of attention has been lately payed to a number of data hiding methods based in quantization, seeking to achieve in practice the results predicted by Costa for a channel with side information at the encoder. With the objective of filling a gap in the literature, this paper supplies a fair comparison between significant representatives of both this family of methods and the ...
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ژورنال
عنوان ژورنال: Signal Processing
سال: 2006
ISSN: 0165-1684
DOI: 10.1016/j.sigpro.2005.07.024