| 离散小波变换和零树编码在数字水印中的应用研究 |
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| 引用本文： | 闫晓威,张建中,毛军捷.离散小波变换和零树编码在数字水印中的应用研究[J].计算机应用与软件,2008,25(3):257-259. |
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| 作者姓名： | 闫晓威 张建中 毛军捷 |
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| 作者单位： | 电子科技大学计算机科学与工程学院,四川,成都,610054 |
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| 摘 要： | 采用小波变换和零树编码对图像进行水印嵌入和提取,通过对原始图像和水印图像分别进行不同级别的小波变换,选取原始图像小波的重要系数,将水印图像小波系数以一定的方式嵌入进去,使图像具有很好的稳健性及抗压缩性.
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| 关 键 词： | 数字水印 小波零树 小波变换 |
| 收稿时间： | 2006-03-14 |
| 修稿时间： | 2006年3月14日 |
DWT AND EZW CODING IN DIGITAL WATERMARKING |
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| Yan Xiaowei,Zhang Jiangzhong,Mao Junjie.DWT AND EZW CODING IN DIGITAL WATERMARKING[J].Computer Applications and Software,2008,25(3):257-259. |
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| Authors: | Yan Xiaowei Zhang Jiangzhong Mao Junjie |
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| Affiliation: | Yan Xiaowei Zhang Jiangzhong Mao Junjie(Department of Computer Science , Engineering UESTC,Chengdu 610054,Sichuan,China) |
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| Abstract: | A digital image watermarking algorithm based on EZW wavelet coding and wavelet transform is presented. Wavelet transforms of different levels are applied to the original image and the watermarking image. The significant coefficients of the original image wavelet are selected, and the wavelet coefficients of watermarking image are embedded into them. This algorithm has the characteristics of robustness and anti-compression. |
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| Keywords: | Digital watermarking Zerotree of wavelet Wavelet transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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