| 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. |
| 关键词: 数字水印 信息隐藏 DCT变换 奇异值分解 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:May 16, 2007 |
| 基金项目: |
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| A Digital Watermarking Method Based on SVD Decomposition in DCT Domain |
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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. |
| Key words: digital watermarking,information hidding,DCT,SVD |
