| 基于DWT和SVD联合的数字水印算法 |
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| 引用本文： | 曾志华,钱雪忠. 基于DWT和SVD联合的数字水印算法[J]. 计算机工程与设计, 2008, 29(5): 1291-1293 |
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| 作者姓名： | 曾志华 钱雪忠 |
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| 作者单位： | 江南大学,信息工程学院,江苏,无锡,214122 |
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| 摘 要： | 离散小波变换(DWT)和奇异值分解都可以作为数字水印算法有效的工具.提出了一种基于离散小波变换和奇异值分解联合的数字水印算法,先将整个图像分成4个区域,然后再对每个区域运用奇异值分解方法,通过修改奇异值来嵌入水印信息.实验结果表明,该算法具有很好的稳健性,在经过了一般的信号处理操作和JPEG压缩后,嵌入的水印能被可靠的提取和检测.
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| 关 键 词： | 稳健的 版权保护 数字水印 离散小波变换 奇异值分解 |
| 文章编号： | 1000-7024(2008)05-1291-02 |
| 修稿时间： | 2007-03-22 |
Hybrid digital watermarking algorithm based on DWT and SVD |
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| ZENG Zhi-hua,QIAN Xue-zhong. Hybrid digital watermarking algorithm based on DWT and SVD[J]. Computer Engineering and Design, 2008, 29(5): 1291-1293 |
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| Authors: | ZENG Zhi-hua QIAN Xue-zhong |
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| Affiliation: | ZENG Zhi-hua,QIAN Xue-zhong(School of Information Technology,Southern Yangtze University,Wuxi 214122,China) |
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| Abstract: | Discrete wavelet transform(DWT) and singular value decomposition(SVD) are used as tools for embedding data into an image.A hybrid watermarking algorithm based on DWT and SVD is proposed,after decomposing the whole image into four subbands,and then applying the SVD to each subband,and embedding the watermark data by modifying the singular values.Experimental results show that the watermarking algorithm performs well in robustness,the embedded watermark can be detected reliably,following usual signal processi... |
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| Keywords: | robust copyright protection digital watermarking discrete wavelet transform singular value decomposition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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