| 一种基于小波域的数字水印嵌入与提取算法 |
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| 引用本文： | 王雯霞,彭勃.一种基于小波域的数字水印嵌入与提取算法[J].现代电子技术,2008,31(11):75-77. |
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| 作者姓名： | 王雯霞 彭勃 |
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| 作者单位： | 河南科技大学,河南,洛阳,471003 |
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| 摘 要： | 提出了一种基于小波变换的图像嵌入数字水印及检测的方法。对数字图像进行多级二维小波变换可以得到一个逼近图像和几个高频细节图像,对低频(逼近部分)图像嵌入数字水印,对加入水印的图像进行小波逆变换得到重构图像。检测时,先对重构图像进行小波变换,再对低频图像提取数字水印。
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| 关 键 词： | 数字水印 小波变换 小波逆变换 鲁棒性 |
| 文章编号： | 1004-373X(2008)11-075-03 |
| 修稿时间： | 2007年11月16 |
Realization of Embedding and Extracting Watermark Based on Wavelet Transform |
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| WANG Wenxia,PENG Bo.Realization of Embedding and Extracting Watermark Based on Wavelet Transform[J].Modern Electronic Technique,2008,31(11):75-77. |
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| Authors: | WANG Wenxia PENG Bo |
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| Abstract: | In this paper,a method of realization of embedding and extracting watermark based on wavelet transform is given.An approach image and several high frequency image are gained by multi-level 2D wavelet transform to digital image.Watermark is added to the low band of the wavelet transform of image,and a watermark embedded image is reconstructed.Then,watermark is extracted from the low band of wavelet transform of watermark embedded image. |
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| Keywords: | digital watermark wavelet transform invert wavelet transform robustness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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