| 基于图像特征点的公钥水印算法 |
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| 引用本文： | 胡盈,肖竞华.基于图像特征点的公钥水印算法[J].计算机与现代化,2011(8):171-173,178. |
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| 作者姓名： | 胡盈 肖竞华 |
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| 作者单位： | 武汉科技大学计算机科学与技术学院,湖北武汉,430065 |
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| 摘 要： | 对于现在公钥水印算法一些抗几何攻击能力弱的问题,提出一种基于图像特征点的公钥水印算法。通过Harris-Laplace算法提取图像的特征点,构造局部特征区域,并在这些区域内做DCT变换和水印信息的嵌入,使得嵌入水印后的图像可以更好地抗RST攻击。
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| 关 键 词： | 公钥数字水印 Harris-Laplace算法 DCT |
Public-key Watermarking Algorithm Based on Image Feature Keypoints |
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| HU Ying,XIAO Jing-hua.Public-key Watermarking Algorithm Based on Image Feature Keypoints[J].Computer and Modernization,2011(8):171-173,178. |
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| Authors: | HU Ying XIAO Jing-hua |
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| Affiliation: | HU Ying,XIAO Jing-hua(College of Computer Science and Technology,Wuhan University of Science and Technology,Wuhan 430065,China) |
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| Abstract: | Aiming at the weak robustness to the geometric attacks of the public-key watermarking algorithm,a public-key watermarking algorithm based on image feature keypoints is proposed.The feature keypoints of image are extracted by Harris-Laplace algorithm,the watermarking in the DCT domain of the feature zone is embedded,so it can rest the RST attack. |
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| Keywords: | public-key digital watermark Harris-Laplace algorithm DCT |
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