The objectives of this study were two-fold; to determine how variations in practical illuminance range (from ~300 to ~2300 lx) affect the perception of suprathreshold small color differences for a range of object stimuli across the color space, and to investigate the role of variations in luminance on intra- and inter-observer variability in repeated psychophysical trials. STRESS index and conventional statistical methods suggest the presence of a significant difference between visual responses for large changes in luminance. Inter- and intra-observer variability also varied according to luminance. Calculated color differences based on recent CAM models show good agreement with visual results over the luminance range examined.

中文翻译：

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亮度对小色差感知的影响

这项研究的目标有两个；确定实际照度范围（从 ~300 到 ~2300 lx）的变化如何影响对跨颜色空间的一系列物体刺激的超阈值小颜色差异的感知，并研究亮度变化对内部和内部的作用- 重复心理物理学试验中的观察者变异性。应力指数和传统统计方法表明，对于亮度的大变化，视觉反应之间存在显着差异。观察者间和观察者内的可变性也根据亮度而变化。基于最近的 CAM 模型计算出的色差与所检查的亮度范围内的视觉结果非常吻合。