| 一种基于DWT和SVD的彩色图像零水印算法 |
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| 引用本文： | 潘黄琼,陈光喜,丁勇.一种基于DWT和SVD的彩色图像零水印算法[J].桂林电子科技大学学报,2011(5):399-402. |
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| 作者姓名： | 潘黄琼 陈光喜 丁勇 |
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| 作者单位： | 桂林电子科技大学数学与计算科学学院; |
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| 基金项目： | 国家自然科学基金(60963024); 广西教育厅科研基金(200807LX112); 广西学位与研究生教育改革和发展专项课题(200910595R06) |
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| 摘 要： | 为了提高水印技术的鲁棒性,提出了彩色图像在离散小波变换(DWT)和奇异值分解(SVD)下的零水印算法.对原始载体图像的R、G、B这3个空间分别进行离散小波变换,分别对每个空间的低频子带进行分块,且对分块后的低频子带进行奇异值分解；通过提取3个空间中最大的前若干项来构造水印.实验结果表明,该算法对抗各种攻击有较强的鲁棒性...
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| 关 键 词： | 奇异值分解 离散小波变换 零水印 鲁棒性 |
A zero-watermark algorithm of color image based on DWT and SVD |
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| Pan Huangqiong,Chen Guangxi,Ding Yong.A zero-watermark algorithm of color image based on DWT and SVD[J].Journal of Guilin Institute of Electronic Technology,2011(5):399-402. |
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| Authors: | Pan Huangqiong Chen Guangxi Ding Yong |
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| Affiliation: | Pan Huangqiong,Chen Guangxi,Ding Yong(School of Mathematics and Computational Science,Guilin University of Electronic Technology,Guilin 541004,China) |
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| Abstract: | In order to enhance the robustness of watermark technology,using discrete wavelet transformation(DWT)and the block singular value decomposition(SVD),a zero-watermark algorithm based on color image is proposed.It conducts DWT with the original image of the R,G,B space,then divides its low frequency band into blocks respectively and conducts SVD with every block.Zero-watermark is generated by several former largest singular values of the three spaces.Experimental results show that the proposed algorithm has s... |
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| Keywords: | singular value decomposition discrete wavelet transformation zero-watermark robustness |
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