| 基于DWT-SVD域的图像水印算法 |
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| 引用本文： | 陈心晶,张明.基于DWT-SVD域的图像水印算法[J].现代计算机,2010(4):81-83. |
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| 作者姓名： | 陈心晶 张明 |
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| 作者单位： | 陈心晶(上海海事大学信息工程学院,上海,200135);张明(上海海事大学信息化办公室,上海,200135) |
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| 摘 要： | 离散小波变换和奇异值分解都可以作为数字水印算法有效的工具,提出一种基于离散小波变换和奇异值分解的数字水印算法.此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,在经过一般的信号处理操作后,嵌入的水印能被可靠地提取和检测.
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| 关 键 词： | 数字水印 小波变换 奇异值分解 鲁棒性 |
Image Watermarking Algorithm Based on DWT-SVD Domain |
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| CHEN Xin-jing,ZHANG Ming.Image Watermarking Algorithm Based on DWT-SVD Domain[J].Modem Computer,2010(4):81-83. |
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| Authors: | CHEN Xin-jing ZHANG Ming |
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| Affiliation: | CHEN Xin-jing1,ZHANG Ming2(1.College of Information Technology,Shanghai Maritime University,Shanghai 200135,2.Informatization Office,Shanghai 200135) |
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| Abstract: | Discrete Wavelet Transformation(DWT) and Singular Value Decomposition(SVD)are used as tools for embedding data into an image.Proposes a hybrid watermarking algorithm based on DWT and SVD.Decomposes the whole image into four subbands,and then applies the SVD to each subband,and embeds the watermark data by modifying the singular values.Experimental result shows that the watermarking algorithm performs well in robustness,the embedded watermark can be detected reliably,following usual signal processing. |
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| Keywords: | Watermarking Wavelet Transformation Singular Value Decomposition Robust |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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