| 基于DDWT的复合型数字图像水印算法 |
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| 引用本文： | 张亭,杨会成.基于DDWT的复合型数字图像水印算法[J].安徽机电学院学报,2009(2):51-54. |
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| 作者姓名： | 张亭 杨会成 |
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| 作者单位： | 安徽工程科技学院安徽省电气传动与控制重点实验室,安徽芜湖241000 |
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| 基金项目： | 安徽省高校自然科学基金资助项目（2006kj059B）;安徽省教育厅重点基金资助项目（kj2008a01zc） |
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| 摘 要： | 提出了一种鲁棒性数字水印和脆弱性数字水印相结合的复合式水印算法,具有较好的双重保护性能,即用于版权认证方面的鲁棒性数字水印和用于图像内容保护的脆弱性数字水印.首先,对原始图像进行DDWT和SVD变换在频域中嵌入鲁棒性数字水印;然后,在空域中嵌入脆弱性数字水印.仿真实验表明,该算法具有很好的应用前景.
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| 关 键 词： | 鲁棒水印 脆弱水印 分散式离散小波变换（DDWT） 奇异值分解（SVD） |
A new algorithm of compound image watermarking based on DDWT |
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| ZHAGN Ting,YANG Hui-cheng.A new algorithm of compound image watermarking based on DDWT[J].Journal of Anhui Institute of Mechanical and Electrical Engineering,2009(2):51-54. |
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| Authors: | ZHAGN Ting YANG Hui-cheng |
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| Affiliation: | (Anhui Provincial Key Laboratory of Electric and Control, Anhui University of Technology and Science, Wuhu 241000, China) |
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| Abstract: | This paper presents a new compound image watermarking method, which is embedding both robust watermark and fragile watermark to one image, so that it not only conveys the ownership, but also justifies whether the source image is tampered. Firstly, the robust watermark is embedded in the intermediate frequency of DDWT and SVD of the original image. Next, the fragile watermark is adaptively embedded into spatial domain. Simulation results show that the algorithm is very effective, and widely applicable in practice. |
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| Keywords: | robust watermarking fragile watermarking distributed discrete wavelet transformation （DDWT） singular value decomposition （SVD） |
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