| 一种DCT域中基于SVD分解的数字水印技术 |
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| 引用本文： | 蔡方凯,张松.一种DCT域中基于SVD分解的数字水印技术[J].电讯技术,2007,47(5):149-152. |
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| 作者姓名： | 蔡方凯 张松 |
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| 作者单位： | 成都电子机械高等专科学校,通信系,成都,610031 |
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| 摘 要： | 数字水印(Digital Watermarking)是进行知识产权保护和认证的一种有效方法.在DCT域中基于SVD分解的数字图像水印嵌入-提取算法,通过在原始图像DCT变换的左上角系数嵌入水印信号的主分量信息,保留了原始图像的中低频信息,获得好的水印嵌入不可感知性;同时,该算法对于常见的图像攻击具有强的鲁棒性,很好地实现了数字信息的版权保护.计算机仿真结果表明所提出的算法是有效可行的.
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| 关 键 词： | 数字水印 信息隐藏 DCT变换 奇异值分解 |
| 文章编号： | 1001-893X（2007）05-0149-04 |
| 修稿时间： | 2007-05-16 |
A Digital Watermarking Method Based on SVD Decomposition in DCT Domain |
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| CAI Fang-kai,ZHANG Song.A Digital Watermarking Method Based on SVD Decomposition in DCT Domain[J].Telecommunication Engineering,2007,47(5):149-152. |
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| Authors: | CAI Fang-kai ZHANG Song |
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| Affiliation: | Communication Department, Chengdu Electromechanical College, Chengdu 610031, China |
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| Abstract: | Digital watermarking is an efficient method for the intellectual property protection and identification.This paper proposes a digital watermarking embedded and detected method in DCT domain on the SVD(Singular Valued Decomposition) of digital images by embedding the watermark into principle components of the carrier image low-middle frequency.This method has good watermark imperceptibility and robustness against ordinary image processing.Finally the computer simulations prove that the proposed method is effective and feasible. |
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| Keywords: | digital watermarking information hidding DCT SVD |
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