| 数码彩扩机色域匹配模型研究 |
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| 引用本文： | 穆宝忠,叶子,余飞鸿.数码彩扩机色域匹配模型研究[J].光子学报,2005,34(3):448-451. |
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| 作者姓名： | 穆宝忠 叶子 余飞鸿 |
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| 作者单位： | 浙江大学光电系现代光学仪器国家重点实验室,杭州,310027;浙江大学光电系现代光学仪器国家重点实验室,杭州,310027;浙江大学光电系现代光学仪器国家重点实验室,杭州,310027 |
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| 基金项目： | 国家高新技术产业化项目(No.2001AA300152)资助 |
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| 摘 要： | 色域匹配是数码彩扩机实现图像颜色较好再现的关键.首先，采用一种较为实用的方法对CRT显示器进行了标定，运用Beer色料理论预测了彩色相纸的色域.在此基础上，运用非线性压缩算法实现从CRT到彩色相纸的色域匹配，同时提出了虚拟色域的概念，并加以分析研究.结果表明，非线性压缩色域匹配模型对于建立数码彩扩机的颜色管理系统具有重要实用价值.采用这种方法在国家高新技术激光数码彩扩机中取得了高质量的扩印效果.
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| 关 键 词： | 色域匹配 CRT的标定 虚拟色域 非线性压缩 |
| 收稿时间： | 2004-01-19 |
| 修稿时间： | 2004年1月19日 |
The Model of Color Gamut Mapping in Digital Photofinishing |
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| Mu Baozhong,Ye Zi,Yu Feihong.The Model of Color Gamut Mapping in Digital Photofinishing[J].Acta Photonica Sinica,2005,34(3):448-451. |
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| Authors: | Mu Baozhong Ye Zi Yu Feihong |
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| Institution: | State Key Laboratory of Modern Optical Instrumentation, Optical Engineering Department , Zhejiang University，Hangzhou 310027 |
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| Abstract: | Gamut mapping is the key element to get satisfactory image reproduction. First, a practical method is used to realize the transform from RGB values of CRT monitor to spectral tristimulus values. The printing paper gamut is predicted by Beer′s law. Further, a non-linear compression method is proposed to realize the gamut mapping. At the same time, the virtual gamut is defined and studied. The result indicates that this model has good practicality for the CMS (Color Management System) of digital photofinishing. This method is applied to high-technology industry with satisfying performance. |
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| Keywords: | Gamut mapping CRT transform matrix Virtual gamut Non-linear compression |
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