| 基于色相角的专色油墨配色算法研究 |
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| 引用本文： | 徐锦林,徐咏驰,徐军飞. 基于色相角的专色油墨配色算法研究[J]. 中国印刷物资商情, 2011, 0(2): 17-22 |
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| 作者姓名： | 徐锦林 徐咏驰 徐军飞 |
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| 作者单位： | [1]浙江工贸职业技术学院,温州325003 [2]西安理工大学印刷包装工程学院,西安710048 |
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| 基金项目： | 温州市科技计划项目（No.G20080091） |
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| 摘 要： | 专色油墨不可能通过基色油墨线性混合而成,其色度值与各基色墨配比之间存在着非线性关系。由混合实验发现,CIELAB色空间中的色相角与墨量呈单调函数关系。本文利用五次多项式拟合方法建立专色色相角与基色墨量的关系曲线,实现双基色专色配色。此法便捷、精度高。此外,本算法对于基于三基色的专色油墨配色的研究,具有一定的理论意义和实用价值。
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| 关 键 词： | 专色油墨 配色 色度法 |
Study on the Spotcolor Ink Matching Algorithm Based on Hue Angle |
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| XU Jinlin,XU Yongchi,XU Junfei. Study on the Spotcolor Ink Matching Algorithm Based on Hue Angle[J]. China Printing Materials Market, 2011, 0(2): 17-22 |
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| Authors: | XU Jinlin XU Yongchi XU Junfei |
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| Affiliation: | 1.Zhejiang Industry ＆ Trade Vocational College,Wenzhou 325003,China;2.The Faculty of Printing and Packaging Engineering,Xi＇an University of Technology,Xi＇an 710048,China) |
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| Abstract: | Not all spotcolors can be linearly translated in 4 process colors.It is found that there is a non-linearly relationship between spotcolor and ink supply of process colors.From some experiments of spotcolor matching,it is found that hue angle of spotcolor in CIELAB color space is a monotonic function of process colors ink supply.Therefore in this paper,a quintic polynomial fitting method was used to construct the function,and then was used to match spotcolor with two process colors. This spotcolor matching algorithm is simple and precise.Moreover,this algorithm can be expand to be applied in spotcolor matching with 3 process colors. |
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| Keywords: | Spotcolor ink Color-matching Colorimetry |
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