| 摘要: |
| 目的 建立一个显示器颜色再现模型， 模型以 NEC 显示器为实例， 实现 Lab 到 RGB 的转换。 方法 模型以修正的立方体细分算法为基础， 通过对色域外的点进行处理， 并且选定一个最佳细分等级， 来平衡转换精度和算法计算量， 从而实现显示器的颜色再现。 结果 采用 CIELab 色差公式 [1]分析实验数据， 模型转换过程平均色差为 1.8068， 在人的视觉可接受范围内 ， 最大色差仅有 4.6051， 模型的颜色再现精度高。 结论 文中建立的模型可以实现显示器从Lab到 RGB 的准确转换。 |
| 关键词: 颜色再现 立方体细分 最佳细分等级 |
| DOI： |
| 分类号:TS801.3 |
| 基金项目:上海市研究生创新基金（JWCXSL1402） |
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| Monitor Color Reproduction Model Based on Optimal Cube Subdivision |
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LIU Pan1, LIU Zhen1, ZHU Ming2
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1.University of Shanghai for Science and Technology， Shanghai 200093， China;2.Henan Institute of Engineering， Zhengzhou 450007， China
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| Abstract: |
| Objective A monitor color reproduction model was established to realize the conversion from Lab to RGB, using a NEC monitor as example. Methods The model was based on the modified cube subdivision algorithm, which processed the points outside the color gamut. Through choosing an optimal subdivision level, the model could balance between the conversion calculation precision and algorithm efficiency, in this way, the color reproduction of the monitor was realized. Results The accuracy of the model was analyzed with the CIELab color difference formula, the average color difference during the model conversion was 1.8068, which was in the acceptable range of human vision. The largest color difference was only 4.6051. The model had high conversion precision. Conclusion The model established in this paper could realize the accurate conversion of the monitor from Lab to RGB. |
| Key words: color reproduction cube subdivision optimal subdivision level |
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