| 一种基于小波变换的数字水印算法 |
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| 引用本文： | 杨雄,冯刚,严雄兵,刘雄华.一种基于小波变换的数字水印算法[J].计算机应用,2005,25(3):565-566. |
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| 作者姓名： | 杨雄 冯刚 严雄兵 刘雄华 |
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| 作者单位： | 华中师范大学,计算机科学系,湖北,武汉,430079;华中师范大学,计算机科学系,湖北,武汉,430079;华中师范大学,计算机科学系,湖北,武汉,430079;华中师范大学,计算机科学系,湖北,武汉,430079 |
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| 摘 要： | 目前有很多基于离散小波变换 (DWT)的水印算法,但很少讨论到水印嵌入子带的选择问题。介绍了一种新颖的基于DWT的水印算法,该算法通过在最大均方根 (RMS)值细节子带中嵌入水印取得了不错的结果,实验证明该子带中的水印在抵抗高斯噪声和JPEG压缩攻击时有较好的鲁棒性。
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| 关 键 词： | 数字水印 离散小波变换 最大均方根 人眼视觉系统 |
| 文章编号： | 1001-9081(2005)03-0565-02 |
Digital watermarking algorithm using Discrete Wavelet Transform |
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| YANG Xiong,FENG Gang,YAN Xiong-bing,LIU Xiong-hua.Digital watermarking algorithm using Discrete Wavelet Transform[J].journal of Computer Applications,2005,25(3):565-566. |
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| Authors: | YANG Xiong FENG Gang YAN Xiong-bing LIU Xiong-hua |
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| Affiliation: | Department of Computer Science, Central China Normal University |
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| Abstract: | Though many DWT-based watermarking algorithms have been presented, few of them discuss the issue that which detail subband is the better choice to watermark. This paper presented a novel DWT-based watermarking algorithm. This algorithm selected the detail subband with the highest RMS value for watermarking and got good results. Experiment results show that watermarking in this subband is more robust than the other two detail subbands to Gaussian noise and JPEG compression. |
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| Keywords: | digital watermark DWT(Discrete Wavelet Transform) Max RMS HVS(Human Vision System) |
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