| 抗几何攻击的高分辨率遥感影像半盲水印算法 |
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| 引用本文： | 任娜,朱长青,王志伟.抗几何攻击的高分辨率遥感影像半盲水印算法[J].武汉大学学报(信息科学版),2011(3):329-332. |
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| 作者姓名： | 任娜 朱长青 王志伟 |
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| 作者单位： | 南京师范大学虚拟地理环境教育部重点实验室;信息工程大学测绘学院; |
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| 基金项目： | 国家863计划资助项目(2009AA12Z228); 国家自然科学基金资助项目(41071245) |
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| 摘 要： | 提出了一种可有效抵抗几何攻击的高分辨率遥感影像半盲水印算法。该算法充分考虑了高分辨率遥感影像的特点,在水印嵌入方案中,对原始水印信息进行扩频处理,将水印值与最高有效位进行匹配,生成密钥矩阵,水印嵌入到最高位或次低位,并以二进制方式保存生成的密钥矩阵;在水印提取方案中,采用模板匹配技术提取出最优的水印信息。实验结果表明,该水印方案具有良好的不可见性,并且对影像的裁剪、旋转、平移、加噪、滤波等操作具有较强的鲁棒性。
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| 关 键 词： | 高分辨率遥感影像 密钥矩阵 模板匹配 半盲水印 抗几何攻击 |
Semi-blind Watermarking Algorithm Resistance on Geometrical Attacks for High-Resolution Remote Sensing Image |
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| REN Na ZHU Changqing WANG Zhiwei.Semi-blind Watermarking Algorithm Resistance on Geometrical Attacks for High-Resolution Remote Sensing Image[J].Geomatics and Information Science of Wuhan University,2011(3):329-332. |
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| Authors: | REN Na ZHU Changqing WANG Zhiwei |
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| Institution: | REN Na1 ZHU Changqing1 WANG Zhiwei2 (1 Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,1 Wenyuan Road,Nanjing 210046,China) (2 Institute of Surveying and Mapping,Information Engineering University,66 Middle Longhai Road,Zhengzhou 450052,China) |
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| Abstract: | A new semi-blind high-resolution remote sensing image watermarking algorithm robust to general geometric distortions is proposed.The characteristics of high-resolution remote sensing images are given full consideration.In the watermark embedding procedure,the original watermark information is firstly processed by the mechanism of spread-spectrum.Then,in order to generate the key matrix,the watermark values and the most significant bit of the image are compared.Finally,the watermark is embedded into the most... |
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| Keywords: | high-resolution remote sensing image key matrix template matching semi-blind watermarking resistance on geometrical attacks |
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