| 印刷品质量检测过程中的色空间转换方法研究 |
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| 引用本文： | 缪晓丽,唐正宁. 印刷品质量检测过程中的色空间转换方法研究[J]. 包装工程, 2011, 32(3): 71-73,80 |
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| 作者姓名： | 缪晓丽 唐正宁 |
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| 作者单位： | 江南大学,无锡,214122;江南大学,无锡,214122 |
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| 摘 要： | 在标准图像和待测图像配准的基础上,采用几何插值法进行RGB到Lab的色彩空间转换。首先在原色空间中进行了非均匀分割,建立了查找表,然后在分割得到的栅格中应用四面体插值算法完成了到目标空间的转换,并且计算了对应点的色差,对转换后的色差分布进行了分析,以用于对印刷品是否存在偏色进行判定,效果较好。
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| 关 键 词： | 在线检测 色彩空间转换 四面体插值 色差 |
| 收稿时间： | 2010-10-12 |
| 修稿时间： | 2011-02-10 |
Development of Color Space Conversion Method for Printing Quality Inspection |
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| MIAO Xiao-li and TANG Zheng-ning. Development of Color Space Conversion Method for Printing Quality Inspection[J]. Packaging Engineering, 2011, 32(3): 71-73,80 |
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| Authors: | MIAO Xiao-li and TANG Zheng-ning |
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| Affiliation: | (Jiangnan University,Wuxi 214122,China) |
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| Abstract: | During in printing quality inspection,the inspection of hue error is an important content.Geometrical lookup table with interpolation was applied to process the color space transformation(RGB to Lab) based on the registration of standard printed mater and printing mater.Firstly,source color space was divided unevenly and the relevant lookup table was established.The divided grids were transformed to target color space with tetrahedron geometrical interpolation algorithm.The color difference of corresponding points was calculated and the distribution of color difference was analyzed.The results were used to evaluate the color deflection of presswork.It was proved that this method has good effect. |
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| Keywords: | on-line defect color space conversion tetrahedron interpolation color difference |
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