| 基于图像方向性信息测度的图像水印技术 |
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| 引用本文： | 闵连权,喻其宏. 基于图像方向性信息测度的图像水印技术[J]. 测绘学院学报, 2006, 0(5) |
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| 作者姓名： | 闵连权 喻其宏 |
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| 作者单位： | 信息工程大学测绘学院 河南郑州450052(闵连权)，沈阳炮兵学院 辽宁沈阳110162(喻其宏) |
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| 摘 要： | 数字水印是图像信息版权保护的一种新兴的技术手段,水印的不可感知性和鲁棒性是相互制约的两个对立面。结合人类的视觉系统特性,提出了一个新的图像水印方案基于图像方向性信息测度的图像水印,在水印嵌入时根据图像块的局部特性,自适应地调整水印的嵌入强度,达到了在鲁棒性和不可感知性之间的较好折衷。最后结合实例说明了算法的实用性。
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| 关 键 词： | 版权保护 数字水印 方向性信息测度 |
A Watermarking Algorithm Based on Orientation Information Measure of Image |
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| MIN Lian-quan,YU Qi-hong. A Watermarking Algorithm Based on Orientation Information Measure of Image[J]. Journal of Institute of Surveying and Mapping, 2006, 0(5) |
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| Authors: | MIN Lian-quan YU Qi-hong |
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| Affiliation: | MIN Lian-quan~1,YU Qi-hong~2 |
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| Abstract: | Digital watermarking is a new technical means to the copyright protection of image,and the robustness is incompatible with the imperceptibility.Combined with human visual system,the paper brought forward a new watermarking algorithm based on orientation information measure of image.Embedding intension was adaptive according to image local characteristic when watermarking was embedded.So the algorithm was a compromise between the robustness and the imperceptibility.Finally the practicability of the new method was validated with an example. |
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| Keywords: | copyright protection digital watermarking orientation information measure |
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