| 基于边缘检测的块分类水印算法 |
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| 引用本文： | 贾伟,张佑生,周庆松,李明. 基于边缘检测的块分类水印算法[J]. 合肥工业大学学报(自然科学版), 2004, 27(2): 168-171 |
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| 作者姓名： | 贾伟 张佑生 周庆松 李明 |
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| 作者单位： | 合肥工业大学,计算机与信息学院,安徽,合肥,230009;合肥工业大学,计算机与信息学院,安徽,合肥,230009;合肥工业大学,计算机与信息学院,安徽,合肥,230009;合肥工业大学,计算机与信息学院,安徽,合肥,230009 |
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| 摘 要： | 文章阐述了感知特性在水印技术中的重要应用,提出一种基于边缘检测的块分类自适应水印算法,把原图像分块,通过计算图像块中边缘点的数量进行分类。根据分类结果,不同强度的水印分量被嵌入到不同图像块的DCT低频系数中去。试验结果表明,该方法具有计算简单、感知效果好及鲁棒性强等特点。
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| 关 键 词： | 数字水印 感知性 视觉特性 边缘检测 块分类 |
| 文章编号： | 1003-5060(2004)02-0168-04 |
| 修稿时间： | 2003-07-03 |
A block classification watermarking algorithm based on edge detection |
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| JIA Wei,ZHANG You-sheng,ZHOU Qing-song,LI Ming. A block classification watermarking algorithm based on edge detection[J]. Journal of Hefei University of Technology(Natural Science), 2004, 27(2): 168-171 |
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| Authors: | JIA Wei ZHANG You-sheng ZHOU Qing-song LI Ming |
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| Abstract: | The important application of perception characteristic of digital watermarking has been illustrated. An adaptive block classification algorithm based on edge detection has been proposed. In the algorithm,the original image is split into blocks and these blocks are classified based on edge detection. Watermark components with different strength are inserted into some DCT coefficients according to the classification. The experimental results demonstrate that the proposed algorithm have some good properties such as easy computation,good perception effect,and good robustness. |
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| Keywords: | digital watermarking perception characteristic human visual system edge detection block classification |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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