| Spread Spectrum Watermark Based on Wavelet Transform for Still Digital Image |
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| 引用本文： | ShaoHai-mei MeiTian-can QinQian-qing. Spread Spectrum Watermark Based on Wavelet Transform for Still Digital Image[J]. 武汉大学学报:自然科学英文版, 2004, 9(2): 203-208. DOI: 10.1007/BF02830603 |
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| 作者姓名： | ShaoHai-mei MeiTian-can QinQian-qing |
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| 作者单位： | [1]SchoolofMathematicsandStatistics,WuhanUniversity,Wuhan430072,Hubei,China [2]SchoolofElectronicInformation,WuhanUniversity,Wuhan430072,Hubei,China [3]NationalLaboratoryforInformationEngineeringinSurveying,MappingandRemoteSensing,WuhanUniversity,Wuhan430072,Hubei,China |
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| 基金项目： | SupportedbyWuhanUniversityInnovationFoundation(90 4 2 70 0 72 ) |
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| 摘 要： | The proposed method inserts a watermark into the spectral components of the data using techniques analogous to spread spectrum communications,hiding a narrow band signal in a wideband channel.The watermark is difficult for an attacker to remove.It is also robust to common signal and geometric distortion such as JPEG compression,cropping and scaling.In addition,the watermark can be extracted accurately without source host image at the receiver.
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| 关 键 词： | 扩展频谱水印 小波变换 静态数字图像 几何畸变 图像处理 |
| 收稿时间： | 2003-04-05 |
Spread spectrum watermark based on wavelet transform for still digital image |
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| Shao Hai-mei,Mei Tian-can,Qin Qian-qing. Spread spectrum watermark based on wavelet transform for still digital image[J]. Wuhan University Journal of Natural Sciences, 2004, 9(2): 203-208. DOI: 10.1007/BF02830603 |
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| Authors: | Shao Hai-mei Mei Tian-can Qin Qian-qing |
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| Affiliation: | (1) School of Mathematics and Statistics, Wuhan University, 430072 Wuhan, Hubei, China;(2) School of Electronic Information, Wuhan University, 430072 Wuhan, Hubei, China;(3) National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 430072 Wuhan, Hubei, China |
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| Abstract: | The proposed method inserts a watermark into the spectral components of the data using techniques analogous to spread spectrum communications, hiding a narrow band signal in a wideband channel. The watermark is difficult for an attacker to remove. It is also robust to common signal and geometric distortion such as JPEG compression, cropping and scaling. In addition, the watermark can be extracted accurately without source host image at the receiver. |
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| Keywords: | digital watermark spread spectrum techniques wavelet transform |
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