| 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].测绘科学技术学报,2006,23(5):374-377. |
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| 作者姓名： | 闵连权 喻其宏 |
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| 作者单位： | 1. 信息工程大学,测绘学院,河南,郑州,450052
2. 沈阳炮兵学院,辽宁,沈阳,110162 |
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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 |
| 文章编号： | 1673-6338（2006）05-0374-04 |
| 收稿时间： | 2006-05-14 |
| 修稿时间： | 2006-08-28 |
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 Zhengzhou Institute of Surveying and Mapping,2006,23(5):374-377. |
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| Authors: | MIN Lian-quan YU Qi-hong |
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| Institution: | 1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China; 2. Shenyang Artillery Academy, Shenyang 110162, China |
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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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