郑州大学学报（理学版）

利用孟塞尔新标系统对 CIE LAB色度空间的均匀性进行分析 ,绘制出不同明度的 a* b* 图及 E*ab-H-C三维图 ,并计算出 CIE L* a* b*空间上视觉等间隔两点的色差 .结果表明 ,最大与最小色差相差4倍以上 ,CIE LAB颜色空间不是理想的均匀空间

The uniformity of CIE LAB chromaticity space based on New Munsell indication system is analyzed, and a diagram of a *b * and a three-dimensional diagram of ΔE * ab -H-C with different brightness are drawn out. The color difference of two points with identical space in vision in CIE L *a *b * space is given. The results show that maximal color difference is four times of the minimal one or much more, so it can be said that the CIE L *a *b * color space is not really the ideal uniform space.