| 基于双正交小波变换的自适应图像水印算法 |
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| 引用本文： | 李春华,秦志英. 基于双正交小波变换的自适应图像水印算法[J]. 河北工业科技, 2011, 28(2): 90-93 |
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| 作者姓名： | 李春华 秦志英 |
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| 作者单位： | 1. 河北科技大学信息科学与工程学院,河北石家庄,050018
2. 河北科技大学机械电子与工程学院,河北石家庄,050018 |
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| 基金项目： | 河北科技大学科研基金资助项目 |
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| 摘 要： | 提出的基于双正交小波变换的盲水印算法,综合利用小波域中频各子带系数分布特点,选取重要边缘位置嵌入水印,水印强度可根据所处的嵌入位置自适应调节.实验结果表明:该算法能够有效抵抗附加噪声、裁剪和压缩等常见攻击,具有较强的不可见性和鲁棒性.
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| 关 键 词： | 数字水印 小波变换 自适应 |
| 收稿时间： | 2010-10-19 |
| 修稿时间： | 2010-12-23 |
Adaptive image watermarking algorithm based on biorthogonal wavelet transform |
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| LI Chun-hua and QIN Zhi-ying. Adaptive image watermarking algorithm based on biorthogonal wavelet transform[J]. Hebei Journal of Industrial Science & Technology, 2011, 28(2): 90-93 |
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| Authors: | LI Chun-hua and QIN Zhi-ying |
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| Affiliation: | College of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang Hebei 050018, China;College of Mechanical and Electronic Engineering, Hebei University of Science and Technology, Shijiazhuang Hebei 050018, China |
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| Abstract: | A new adaptive image watermarking algorithm based on wavelet transform is proposed in this paper.It can detect watermark without using the original image.Where watermark is embedded in the important edges decided by the distribution of wavelet.The strength of watermark is adatively adjusted according to the edge.Experimental result shows that this watermark algorithm is invisible and robust against attacks,such as addiribe noise,filter,compression,and so on. |
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| Keywords: | digital watermark wavelet transform adaptive |
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