Shepherd A J
Medical Research Council Applied Psychology Unit, Cambridge, UK.
Perception. 1997;26(4):455-70. doi: 10.1068/p260455.
A vector model of colour contrast is examined in a colour space that is a logarithmic transformation of the MacLeod-Boynton cone-excitation diagram. Observers set matches in a haploscopic display, in which one eye viewed a standard display (a neutral target square in a coloured surround) and the other viewed a matching display (a variable square in its own surround). Contrast colours are simply represented in this colour space: the vector connecting the right-eye surround and matched chromaticities is parallel to and to the same length and direction as the vector that connects the left-eye (standard) surround and square chromaticities. This describes observers' matches to the hues induced in a neutral square for a range of inducing surround colours, a range of right-eye (match) surround colours and four different luminance contrasts.
在一个作为麦克劳德 - 博因顿锥体激发图对数变换的颜色空间中，研究了颜色对比的矢量模型。观察者在双目镜显示中进行匹配，其中一只眼睛观看标准显示（彩色背景中的中性目标方块），另一只眼睛观看匹配显示（其自身背景中的可变方块）。在这个颜色空间中，对比颜色被简单地表示出来：连接右眼背景和匹配色度的矢量与连接左眼（标准）背景和方块色度的矢量平行，且长度和方向相同。这描述了观察者对于一系列诱导背景颜色、一系列右眼（匹配）背景颜色以及四种不同亮度对比度下，中性方块中诱导出的色调的匹配情况。
