| 浅谈数字半色调图像水印技术 |
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| 引用本文： | 谢丁龙,李伟.浅谈数字半色调图像水印技术[J].开封大学学报,2006,20(2):74-76,82. |
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| 作者姓名： | 谢丁龙 李伟 |
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| 作者单位： | 1. 河南大学,土木建筑工程学院,河南,开封,475004
2. 河南大学,计算机与信息工程学院,河南,开封,475004 |
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| 摘 要： | 介绍了有序抖动、误差扩散和模板法三种图像半色调方法,在此基础上,综述了现有的半色调图像水印算法,并对其中的四种方法进行了比较.比较结果表明,不同的方法各有优缺点,实际使用时可根据具体的要求来选择.
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| 关 键 词： | 半色调 水印 有序抖动 误差扩散 模板法 |
| 文章编号： | 1008-343X（2006）02-0074-03 |
| 收稿时间： | 2006-03-10 |
| 修稿时间： | 2006年3月10日 |
Techniques for Watermarking Halftone Images |
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| XIE Ding-long,LI Wei.Techniques for Watermarking Halftone Images[J].Journal of Kaifeng University,2006,20(2):74-76,82. |
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| Authors: | XIE Ding-long LI Wei |
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| Abstract: | Techniques for watermarking halftone images are proposed for copyright protection and anti-counterfeit for printed data.Compared with common watermark algorithms,they are more robust against printing and scanning process.An overview of already proposed watermarking algorithms for halftone images is given,based on the introduction of three kinds of halftone methods,ordered dithering,error diffusion and pattern.Four algorithms among them are compared with each other.The result of comparison demonstrates that different algorithm has different advantages and disadvantages,which algorithm to be adopted can be decided according to practical demand. |
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| Keywords: | halftone watermarking ordered dithering error diffusion pattern |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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