Computation and visualization of the MacAdam limits for any lightness, hue angle, and light source
Computation and visualization of the MacAdam limits for any lightness, hue angle, and light source
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DOI：
10.1364/josaa.24.001501
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发表时间：
2007-06-01
影响因子：
1.9
通讯作者：
Gilabert, Eduardo
中科院分区：
文献类型：
--
作者：
Martinez-Verdu, Francisco;Perales, Esther;Gilabert, Eduardo
我们提出了一个系统的算法，能够搜索任何亮度L*（0和100之间），任何光源（D 65，F2，F7，F11等）的最佳颜色，和CIE报告的任何光源。在某些颜色空间（CIELAB、SVF、DIN 99 d和CIECAM 02）中，通过水平（恒定亮度）和横向（恒定色调角）部分绘制颜色立体图。在DIN 99 d和CIECAM 02颜色空间中绘制的颜色立体看起来比在CIELAB和SVF颜色空间中绘制的颜色立体更球形或均匀。取决于光源或发光体的光谱，其颜色立体的形状及其内容（各种可区分的颜色，具有或不具有颜色对应）急剧变化，特别是对于光谱不连续和/或非常峰值的光源，相关色温低于5500 K。这可以用于在均匀的颜色空间中为光源提出比较其色域的体积的绝对色度质量指数。(c)2007年美国光学学会
We present a systematic algorithm capable of searching for optimal colors for any lightness L* (between 0 and 100), any illuminant (D65, F2, F7, F11, etc.), and any light source reported by CIE. Color solids are graphed in some color spaces (CIELAB, SVF, DIN99d, and CIECAM02) by horizontal (constant lightness) and transversal (constant hue angle) sections. Color solids plotted in DIN99d and CIECAM02 color spaces look more spherical or homogeneous than the ones plotted in CIELAB and SVF color spaces. Depending on the spectrum of the light source or illuminant, the shape of its color solid and its content (variety of distinguishable colors, with or without color correspondence) change drastically, particularly with sources whose spectrum is discontinuous and/or very peaked, with correlated color temperature lower than 5500 K. This could be used to propose an absolute colorimetric quality index for light sources comparing the volumes of their gamuts, in a uniform color space. (c) 2007 Optical Society of America