| 可用于印刷品防伪的数字水印算法 |
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| 引用本文： | 张丽强,谭吉春,王晓峰.可用于印刷品防伪的数字水印算法[J].信息安全与通信保密,2006(6):73-74. |
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| 作者姓名： | 张丽强 谭吉春 王晓峰 |
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| 作者单位： | 国防科技大学光电科学与工程学院,长沙,410073 |
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| 摘 要： | 文献已报道多种可用于印刷品防伪的数字水印算法。由于打印/扫描过程的特殊性,使得其中有些算法的水印检测效果达不到实用要求。文章在研究打印/扫描对数字图像所引起的失真的规律基础上,提出了一种在离散傅里叶变换(DFT)域实现的、可用于印刷品防伪的数字水印嵌入算法。实验结果表明:不需原始图像,即可检测出用此算法嵌入印刷图像中的不可见标记。
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| 关 键 词： | 数字水印 离散傅里叶变换 打印 扫描 防伪 |
| 修稿时间： | 2005年7月13日 |
A New Algorithm Available for Forgery Detection of Printed Image |
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| Zhang Liqiang,Tan Jichun,Wang Xiaofeng.A New Algorithm Available for Forgery Detection of Printed Image[J].China Information Security,2006(6):73-74. |
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| Authors: | Zhang Liqiang Tan Jichun Wang Xiaofeng |
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| Abstract: | Most of watermarking algorithms reported on literature are of little value to image that have been printed and then scanned. In this paper, a new algorithm for embedding information in digital images is proposed based on the analysis of the distortion of image data introduced by printing/scanning. This algorithm is realized on Discrete Fourier Transform domain of original image, and is available for anti-counterfeit of printed images. Experiment results show: the embedded signal in the printed image is invisible, and they can be detected (decoded) without use the original image. |
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| Keywords: | watermark discrete Fourier transform printing scanning anti-counterfeit |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
