基于矩阵轮换加网防伪技术应用
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摘要
目的解决目前半色调加网的信息隐藏技术存在的隐藏效果不佳、易仿制等问题。方法基于最小阈值矩阵加网原理,开发一种矩阵轮换加网算法,生成具有防伪意义的特殊形状网点,应用于半色调信息隐藏技术中。结果该方法中特殊形状网点的生成,克服了传统网点进行信息隐藏时易出现的"断点"缺陷,提高了隐藏视觉不可见度,且网点形状根据矩阵设计的不同而变化,不易仿制,提高了防伪系数。结论矩阵轮换加网生成特殊形状网点,对于半色调加网的信息隐藏技术在实际生产中应用具有较好的指导作用。
The work aims to solve the problem that the hiding effect is not good and the hiding information is easy to imitate regarding the information hiding technology of current halftone screening. Based on the principle of the minimum threshold matrix screening, a kind of matrix rotation screening algorithm was developed to generate the specially shaped dot applied in the halftone information hiding technology. The generation of specially shaped dot by the proposed method overcame the defect "breakpoint" of traditional dot likely to occur during information hiding. The hidden visual invisibility was improved, and the dot shape changed according to the matrix design. As it was not easy to imitate, the security coefficient was improved. The specially shaped dot generated by matrix rotation screening provides better guidance for the application of the information hiding technology of halftone screening in the actual production.
The work aims to solve the problem that the hiding effect is not good and the hiding information is easy to imitate regarding the information hiding technology of current halftone screening. Based on the principle of the minimum threshold matrix screening, a kind of matrix rotation screening algorithm was developed to generate the specially shaped dot applied in the halftone information hiding technology. The generation of specially shaped dot by the proposed method overcame the defect "breakpoint" of traditional dot likely to occur during information hiding. The hidden visual invisibility was improved, and the dot shape changed according to the matrix design. As it was not easy to imitate, the security coefficient was improved. The specially shaped dot generated by matrix rotation screening provides better guidance for the application of the information hiding technology of halftone screening in the actual production.
引文
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[3]龚晔,张逸新,刘振,等.半色调加网防伪应用[J].计算机工程与应用,2008,44(22):216—218.GONG Ye,ZHANG Yi-xin,LIU Zhen,et al.Anti-counterfeiting Application of Halftone Screens[J].Computer Engineering and Application,2008,44(22):216—218.
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[5]石潇文.光栅识别隐形图文防伪技术的研究与应用[D].天津:天津科技大学,2011.SHI Xiao-wen.Research and Application of Anti-counterfeiting Technology on Recogning Invisible Image with Raster[D].Tianjin:Tianjin University of Science and Technology,2011.
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[9]衣旭梅.基于半色调加网防伪印刷的信息隐藏技术的研究[D].北京:北京印刷学院,2011.YI Xu-mei.Study on Information Hiding Technology Based on Halftone Screening Anti-counterfeit Printing[D].Beijing:Beijing Institute of Graphic Communication,2011.
[10]ROSEN J,JAVIDI B.Hiding Images In Halftone Pictures[J].Applied Optics,2001,40(26):3346—3353.
[11]郝发义,邓开发.基于网点形状的半色调全息防伪算法研究[J].包装工程,2014,35(9):122—126.HAO Fa-yi,DENG Kai-fa.Halftone Holographic Anti-counterfeiting Algorithm Based on Dot Shape[J].Packaging Engineering,2014,35(9):122—126.
[12]王振荣,唐万有.基于网目调信息嵌入与提取的防伪方法研究[J].中国印刷与包装研究,2014,3(6):37—43.WANG Zhen-rong,TANG Wan-you.Research on Anti Counterfeiting Method Based on Information Embedding and Extracting[J].Chinese Printing and Packaging,2014,3(6):37—43.
[13]郭凌华,陈燕,刘国栋,等.半色调图像的网点式光栅显隐防伪研究[J].西安理工大学学报,2015,31(3):335—339.GUO Ling-hua,CHEN Yan,LIU Guo-dong.,et al.The Research of Anti-counterfeiting Based on the Implicit with Dot Grating of Halftone Image[J].Journal of Xi'an University of Technology,2015,31(3):335—339.
[14]徐锦林,徐咏驰.调幅网加网因子研究[J].中国印刷与包装研究,2009,1(6):20—24.XU Jin-lin,XU Yong-chi.Study on the Screening Factor of Amplitude Modulation Network[J].China Printing and Packaging Study,2009,1(6):20—24.
[15]徐锦林,陈素明.调幅加网阈值矩阵设计方法与加网原理[J].中国印刷与包装研究,2009,1(3):38—42.XU Jin-lin,CHEN Su-ming.The Design Method of Threshold Matrix and Principle for AM Screening[J].China Printing and Packaging Study,2009,1(3):38—42.
[2]徐国梁,谭庆平.图像半色调化算法研究综述[J].计算机工程与科学,2012,34(12):87—97.XU Guo-liang,TAN Qing-ping.Survey of Research on Image Halftone Algorithm[J].Computer Engineering and Science,2012,34(12):87—97
[3]龚晔,张逸新,刘振,等.半色调加网防伪应用[J].计算机工程与应用,2008,44(22):216—218.GONG Ye,ZHANG Yi-xin,LIU Zhen,et al.Anti-counterfeiting Application of Halftone Screens[J].Computer Engineering and Application,2008,44(22):216—218.
[4]任乐义.基于数字加网的半色调防伪技术的研究[D].南京:南京林业大学,2012.REN Le-yi.Research on Halftone Anti counterfeiting Technology Based on Digital Screening[D].Nanjing:Nanjing Forestry University,2012.
[5]石潇文.光栅识别隐形图文防伪技术的研究与应用[D].天津:天津科技大学,2011.SHI Xiao-wen.Research and Application of Anti-counterfeiting Technology on Recogning Invisible Image with Raster[D].Tianjin:Tianjin University of Science and Technology,2011.
[6]FU M,AU O.Data Hiding Watermarking for Halftone Images[J].IEEE Transaction on Image Processing,2002,11(4):477—484.
[7]刘真,任乐义.基于加网复制的光栅防伪技术研究[J].中国印刷与包装研究,2010,2(S1):153—156.LIU Zhen,REN Le-yi.Research on Grating Anti-counterfeiting Technology based on Web Replication[J].China Printing and Packaging Research,2010,2(S1):153—156.
[8]ORHAN B,GAURAV S,VISHAL M.Orientation Modulation for Data Hiding in Clustered-Dot Halftone Prints[J].IEEE Transactions on Image Processing,2010:2070—2840.
[9]衣旭梅.基于半色调加网防伪印刷的信息隐藏技术的研究[D].北京:北京印刷学院,2011.YI Xu-mei.Study on Information Hiding Technology Based on Halftone Screening Anti-counterfeit Printing[D].Beijing:Beijing Institute of Graphic Communication,2011.
[10]ROSEN J,JAVIDI B.Hiding Images In Halftone Pictures[J].Applied Optics,2001,40(26):3346—3353.
[11]郝发义,邓开发.基于网点形状的半色调全息防伪算法研究[J].包装工程,2014,35(9):122—126.HAO Fa-yi,DENG Kai-fa.Halftone Holographic Anti-counterfeiting Algorithm Based on Dot Shape[J].Packaging Engineering,2014,35(9):122—126.
[12]王振荣,唐万有.基于网目调信息嵌入与提取的防伪方法研究[J].中国印刷与包装研究,2014,3(6):37—43.WANG Zhen-rong,TANG Wan-you.Research on Anti Counterfeiting Method Based on Information Embedding and Extracting[J].Chinese Printing and Packaging,2014,3(6):37—43.
[13]郭凌华,陈燕,刘国栋,等.半色调图像的网点式光栅显隐防伪研究[J].西安理工大学学报,2015,31(3):335—339.GUO Ling-hua,CHEN Yan,LIU Guo-dong.,et al.The Research of Anti-counterfeiting Based on the Implicit with Dot Grating of Halftone Image[J].Journal of Xi'an University of Technology,2015,31(3):335—339.
[14]徐锦林,徐咏驰.调幅网加网因子研究[J].中国印刷与包装研究,2009,1(6):20—24.XU Jin-lin,XU Yong-chi.Study on the Screening Factor of Amplitude Modulation Network[J].China Printing and Packaging Study,2009,1(6):20—24.
[15]徐锦林,陈素明.调幅加网阈值矩阵设计方法与加网原理[J].中国印刷与包装研究,2009,1(3):38—42.XU Jin-lin,CHEN Su-ming.The Design Method of Threshold Matrix and Principle for AM Screening[J].China Printing and Packaging Study,2009,1(3):38—42.