| 基于图像熵的抗剪切局部数字水印算法 |
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| 引用本文： | 王艳,龚声蓉.基于图像熵的抗剪切局部数字水印算法[J].计算机应用与软件,2008,25(9). |
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| 作者姓名： | 王艳 龚声蓉 |
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| 作者单位： | 苏州大学计算机科学与技术学院,江苏,苏州,215006;苏州大学计算机科学与技术学院,江苏,苏州,215006 |
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| 基金项目： | 铁路信息科学与工程部级开放实验室基金 |
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| 摘 要： | 针对基于特征的数字水印算法中常用的Harris检测器进行改进,提出一种根据图像熵自适应调节Harris算法极值检测窗口大小,并结合局部图像特点自适应嵌入的数字水印算法.实验结果表明该算法提取的特征点分布均匀稳定,可以有效抵抗剪切攻击.
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| 关 键 词： | 基于特征 Harris算子 熵 |
A LOCAL WATERMARKING ALGORITHM BASED ON IMAGE ENTROPY RESISTING CROPPING |
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| Wang Yan,Gong Shengrong.A LOCAL WATERMARKING ALGORITHM BASED ON IMAGE ENTROPY RESISTING CROPPING[J].Computer Applications and Software,2008,25(9). |
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| Authors: | Wang Yan Gong Shengrong |
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| Affiliation: | Wang Yan Gong Shengrong(School of Computer Science , Technology,Soochow University,Suzhou 215006,Jiangsu,China) |
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| Abstract: | The Harris detector used in the feature-based watermarking algorithms is improved.The size of the extrema detection window of the Harris algorithm is adjusted according to image entropy,and watermark is embedded adaptively according to the feature of local image.Experimental results show that by the algorithm ,stable and homogeneous feature points can be achieved,and cropping attacks can be resisted effectively. |
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| Keywords: | Feature based Harris Entropy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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