| 基于半色调实地的纽介堡方程修正方法 |
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| 引用本文： | 郭凌华,孙栗媛. 基于半色调实地的纽介堡方程修正方法[J]. 包装工程, 2018, 39(13): 216-221 |
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| 作者姓名： | 郭凌华 孙栗媛 |
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| 作者单位： | 陕西科技大学轻工科学与工程学院,西安710021;陕西科技大学轻化工程国家级实验教学示范中心,西安710021;中国轻工业纸基功能材料重点实验室,西安710021;陕西省造纸技术及特种纸品开发重点实验室,西安710021;陕西科技大学轻工科学与工程学院,西安710021;陕西科技大学轻化工程国家级实验教学示范中心,西安710021;中国轻工业纸基功能材料重点实验室,西安710021;陕西省造纸技术及特种纸品开发重点实验室,西安710021 |
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| 基金项目： | 2017年陕西省大学生创新创业训练计划（1306, 109）；西安市科技计划（2017068CGRC031（SXKD008））；陕西省科技厅工业公关项目（2016GY-017, 2016GY-079）；宝鸡市科技计划（16KJHZI-2, 16GYGG4-2） |
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| 摘 要： | 目的从网点墨量与实地墨量不同的角度出发,构建基于半色调实地三刺激值的纽介堡方程修正模型,从而提高纽介堡方程的计算精度。方法以符合G7认证的印刷标准文件为研究对象,从网点墨量与实地墨量不同的角度出发,通过求解半色调实地三刺激值,构建基于半色调实地三刺激值的纽介堡方程修正模型,利用色差法对该修正模型进行精度验证。结果验证结果表明,修正模型色差精度最大可以提高2.2 NBS,平均色差精度可以提高1.0 NBS。结论基于半色调实地三刺激值的纽介堡方程修正模型能够有效提高方程精度,研究结果对于印刷分色具有重要意义。
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| 关 键 词： | 纽介堡方程 半色调实地三刺激值 分色 |
| 收稿时间： | 2017-12-12 |
| 修稿时间： | 2018-07-10 |
Neugebauer Equation Correction Model Based on Halftone Solid Tristimulus Values |
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| GUO Ling-hua and SUN Li-yuan. Neugebauer Equation Correction Model Based on Halftone Solid Tristimulus Values[J]. Packaging Engineering, 2018, 39(13): 216-221 |
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| Authors: | GUO Ling-hua and SUN Li-yuan |
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| Affiliation: | 1.Shaanxi University of Science & Technology a.College of Bioresources Chemical and Materials Engineering b.National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi''an 710021, China; 2.Key Laboratory of Paper Based Functional Materials of China National Light Industry, Xi''an 710021, China; 3.Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi''an 710021, China and 1.Shaanxi University of Science & Technology a.College of Bioresources Chemical and Materials Engineering b.National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi''an 710021, China; 2.Key Laboratory of Paper Based Functional Materials of China National Light Industry, Xi''an 710021, China; 3.Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Xi''an 710021, China |
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| Abstract: | The work aims to construct the Neugebauer equation correction model based on halftone solid tristimulus values according to the fact that the halftone area ink volume is different from the solid area ink volume, thus improving the calculation precision of Neugebauer equation. The standard printing documents conforming to the G7 certification were taken as the research object. Based on the fact that the halftone area ink volume was different from the solid area ink volume, a Neugebauer equation correction model based on halftone solid tristimulus values was constructed through the solution to the halftone solid tristimulus values. The color difference method was adopted to verify the accuracy of the correction model. The verification results showed that the color difference accuracy of correction model could be improved by 2.2 NBS, and the average color difference accuracy could be improved by 1.0 NBS. The Neugebauer equation correction model based on the halftone solid tristimulus values can effectively improve the equation precision. The research results are of great significance for the color separation of printing. |
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| Keywords: | Neugebauer Equation halftone solid tristimulus values color separation |
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