王晓博,王琪,刘萧豪.基于周期无穷大纵向莫尔条纹的半色调防伪技术研究[J].包装工程,2014,35(1):130-134.
WANG Xiao-bo,WANG Qi,LIU Xiao-hao.Halftone Anti-counterfeiting Technology Based on the Infinite Periodic Vertical Moire[J].Packaging Engineering,2014,35(1):130-134. |
| 基于周期无穷大纵向莫尔条纹的半色调防伪技术研究 |
| Halftone Anti-counterfeiting Technology Based on the Infinite Periodic Vertical Moire |
| 投稿时间：2013-09-02 修订日期：2013-12-01 |
| DOI： |
| 中文关键词: 纵向莫尔条纹 半色调 数字光栅 防伪 |
| 英文关键词: halftone vertical moire digital grating anti-counterfeiting |
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| 中文摘要: |
| 目的 通过分析莫尔条纹的种类及产生原理,以纵向莫尔条纹效应和半色调加网图像的信息隐藏为理论基础,研究一种半色调图像防伪方法。 方法 首先对周期无穷大的纵向莫尔条纹的特性及半色调加网图像的网点排列特性进行了分析,结合半色调图像加网参数,得到纵向莫尔条纹参数与数字加网参数之间的匹配关系;再根据各参数之间的关系对半色调加网图像的部分网点进行调整,实现了隐藏信息的嵌入;最后依据上面各参数关系制作数字光栅, 对加入防伪信息的半色调图像进行检测,完成了防伪。 结果 该防伪技术中隐藏信息的隐秘性好,隐藏信息检测再现清晰,防伪效果较好。结论 提出了一种半色调图像防伪新方法。 |
| 英文摘要: |
| Objective Through the analysis of the types and principle of moire, a method of halftone image anti-counterfeiting was put forward based on the effect of vertical moire and the theory of half-tone image information hiding. Methods Firstly, the characteristics of infinite periodic vertical moire image and the arrangement of halftone image were analyzed. Considering the screening parameters, the matching relationship between vertical moire parameters and screening parameters was obtained. Secondly, the hidden information was embedded by adjusting parts of dots according to the relation of each parameter. Finally, the testing digital grating was designed according to the relationship between the parameters above. The designed grating was used to test the screened image which was embedded with the hidden information and the purpose of anti-counterfeiting was achieved. Results The secrecy of the hidden information in this anti-counterfeiting technology was good. The detection of the hidden information reproduced clearly and the anti-counterfeiting effectiveness was good. Conclusion A new halftone anti counterfeiting technology is put forward. |
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