Attacking Phase Shift Keying Based Watermarking(Image)
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概要
- 論文の詳細を見る
The letter describes a phase perturbation attack to the Discrete Fourier Transform (DFT) and Phase Shift Keying (PSK) based watermarking scheme which is proposed in [3]. In that paper the watermark information is embedded in the phase of the DFT coefficients. But this kind of PSK based watermarking scheme is very vulnerable to the phase perturbation attack, when some noise is added on the phase of the DFT coefficients, the watermark can't be correctly extracted anymore, while the quality degradation of the attacked watermarked image is visually acceptable.
- 社団法人電子情報通信学会の論文
- 2007-01-01
著者
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PAN Jeng-Shyang
Department of Electronic Engineering, National Kaohsiung University of Applied Sciences
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Pan Jeng‐shyang
National Kaohsiung Univ. Applied Sci. Kaohsiung Twn
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Pan Jeng-shyang
Department Of Automatic Test And Control Harbin Institute Of Technology
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LIN Chuang
Department of Automatic Test and Control, Harbin Institute of Technology
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Lin Chuang
Harbin Inst. Technol. Harbin Chn
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Lin Chuang
Department Of Automatic Test And Control Harbin Institute Of Technology
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