| L*a*b*颜色空间在色差评估中的明度标尺均匀性 |
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| 引用本文： | 宦晖,李为.L*a*b*颜色空间在色差评估中的明度标尺均匀性[J].北京理工大学学报,2000,20(4):489-491. |
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| 作者姓名： | 宦晖 李为 |
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| 作者单位： | 北京理工大学颜色科学与工程国家重点实验室,北京,100081 |
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| 基金项目： | 国家自然科学基金;69978002; |
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| 摘 要： | 用倍率法对打印色样和ＣＲＴ模拟色样进行视觉评估实验，研究了Ｌ＾＊ａ＾＊ｂ＾＊颜色空间在用于色差评估时明度标尺的均匀性。视觉实验的数据处理结果表明，Ｌ＾＊ａ＾＊ｂ＾＊空间的明度差几乎没有依赖于明度而呈一定变化趋势的特性，因此在ＣＩＥ９４色差公式中的明度权重函数的原始取值为１。
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| 关 键 词： | 明度标尺 显示器 色差评估 L^＊a^＊b^＊颜色空间 |
The Uniformity of Lightness Scale in L*a*b* Color Space for Color-Difference Evaluation |
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| HUAN Hui,LI Wei.The Uniformity of Lightness Scale in L*a*b* Color Space for Color-Difference Evaluation[J].Journal of Beijing Institute of Technology(Natural Science Edition),2000,20(4):489-491. |
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| Authors: | HUAN Hui LI Wei |
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| Abstract: | The printed color samples and CRT simulated color samples were assessed using ratio method to investigate the uniformity of the lightness scale in L *a *b * color space used for color difference evaluation. Lightness dependence was not found in L *a *b * color space. It is reasonable that weighting function for lightness difference in CIE94 color difference model was proposed to be 1. |
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| Keywords: | color difference formula lightness dependence visual evaluation |
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