| 基于内容的小波域抗几何攻击图像水印算法 |
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| 引用本文： | 阙大顺,张莉. 基于内容的小波域抗几何攻击图像水印算法[J]. 武汉理工大学学报(信息与管理工程版), 2006, 28(11): 31-34 |
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| 作者姓名： | 阙大顺 张莉 |
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| 作者单位： | 武汉理工大学,信息工程学院,湖北,武汉,430070 |
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| 基金项目： | 北京大学校科研和教改项目 |
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| 摘 要： | 为了提高水印的鲁棒性及抗几何攻击能力,提出了一种基于图像内容的小波域抗几何攻击图像水印算法。该算法嵌入的水印是基于原始图像内容产生的,在水印嵌入前,结合图像置乱和纠错编码技术对水印进行置乱与编码,以增强其鲁棒性,水印的嵌入位由随机序列控制;在水印检测前,利用原始图像矩信息估计水印图像所经过的旋转、平移和尺度变换等参数,根据估计参数对水印图像进行相应恢复及水印提取,检测过程不需要原始图像。
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| 关 键 词： | 数字水印 几何攻击 图像几何矩 小波变换 |
| 文章编号： | 1007-144X（2006）11-0031-04 |
| 收稿时间： | 2006-09-15 |
| 修稿时间： | 2006-09-15 |
Image Content-Based Watermark Algorithm Robust to Geometric Distortion in DWT Domain |
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| Que Dashun,Zhang Li. Image Content-Based Watermark Algorithm Robust to Geometric Distortion in DWT Domain[J]. Journal of Wuhan University of Technology(Information & Management Engineering), 2006, 28(11): 31-34 |
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| Authors: | Que Dashun Zhang Li |
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| Affiliation: | School of Information Engineering,WUT, Wuhan 430070, China |
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| Abstract: | A new digital watermarking technique is proposed based on discrete wavelet transform.In order to enhance the robustness of watermark,the watermark is based on the content of the original image.Image scrambling,BCH coding techniques are used to improve the robustness of watermark before watermark embedding.Here the watermark is embedded into the low-frequency components of the wavelet transforms of the image and controlled by the random sequence;before detecting watermark,the parameters of geometric distortions,such as rotation,translation and scaling,are estimated by using the moments of original image,the original image is not required during the detection process. |
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| Keywords: | digital watermarking geometric distortions image moment wavelet transformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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