| Wavelet-Based Denoising Attack on Image Watermarking |
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| 作者姓名： | XUANJian-hui WANGLi-na ZHANGHuan-guo |
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| 作者单位： | [1]SchoolofComputer,WuhanUniversity,Wuhan430079,Hubei,China [2]SchoolofComputer,WuhanUniversity,Wuhan430079,Hubei,China／／NationalLaboratoryofPatternRecognition,ChineseAcademyofScience,Beijing100080,China |
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| 基金项目： | SupportedbytheNationalNaturalScienceFoundationofChina(90104005,60373087,60473023) |
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| 摘 要： | In this paper, we propose wavelet-based denoising attack methods on image watermarking in discrete cosine transform (DCT) or discrete Fourier transform (DFT) domain or discrete wavelet transform (DWT) domain. Wiener filtering based on wavelet transform is performed in approximation subband to remove DCT or DFT domain watermark, and adaptive wavelet soft thresholding is employed to remove the watermark resided in detail subbands of DWT domain.
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| 关 键 词： | 小波降噪 水印 图像 Wiener过滤 小波变换 密码保护 |
| 收稿时间： | 10 May 2004 |
Wavelet-based denoising attack on image watermarking |
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| XUANJian-hui WANGLi-na ZHANGHuan-guo.Wavelet-Based Denoising Attack on Image Watermarking[J].Wuhan University Journal of Natural Sciences,2005,10(1):279-283. |
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| Authors: | Xuan Jian-hui Wang Li-na Zhang Huan-guo |
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| Institution: | (1) School of Computer, Wuhan University, 430079 Wuhan Hubei, China;(2) National Laboratory of Pattern Recognition, Chinese Academy of Science, 100080 Beijing, China |
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| Abstract: | In this paper,we propose wavelet-based denoising attack methods on image watermarking in discrete cosine transform (DCT) or discrete Fourier transform (DFT) domain or discrete wavelet transform (DWT) domain. Wiener filtering based on wavelet transform is performed in approximation subband to remove DCT or DFT domain watermark, and adaptive wavelet soft thresholding is employed to remove the watermark resided in detail subbands of DWT domain. |
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| Keywords: | watermarking watermarking attack wavelet denoising Wiener filter |
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