Sheedy J E
Am J Optom Physiol Opt. 1987 Jul;64(7):504-12. doi: 10.1097/00006324-198707000-00004.
Color constancy refers to the phenomenon that the perceived colors of objects are largely unaltered by changes in the illuminant or by viewing through colored filters. Deviations from perfect constancy, induced by filters similar to ophthalmic tints, were investigated in this study. Munsell color chips were forced-choice categorized into R, Y, G, or B. This accurately located the boundaries between these colors on the chip color circle. Testing was performed through 23 different adaptive conditions and chromaticity shifts created by filters. The technique simulates real world situations in which the chromaticity of the objects and the adaptation of the observer both change. Generally, color constancy held quite well. The boundaries between the four colors shifted for some filters, indicating some deviation from perfect constancy. Red filters resulted in more color chips appearing red, blue and green filters resulted in more chips appearing blue, and filters along the Planckian locus resulted in more chips appearing green.
颜色恒常性是指物体的感知颜色在很大程度上不会因光源变化或透过彩色滤光片观察而改变的现象。本研究调查了类似于眼科色彩的滤光片引起的与完美恒常性的偏差。孟塞尔色卡通过强制选择被归类为红色（R）、黄色（Y）、绿色（G）或蓝色（B）。这准确地确定了色卡颜色圆上这些颜色之间的边界。测试是在23种不同的自适应条件以及由滤光片产生的色度变化下进行的。该技术模拟了物体色度和观察者适应性都发生变化的现实世界情况。一般来说，颜色恒常性保持得相当好。对于某些滤光片，四种颜色之间的边界发生了移动，表明与完美恒常性存在一些偏差。红色滤光片导致更多色卡呈现红色，蓝色和绿色滤光片导致更多色卡呈现蓝色，沿普朗克轨迹的滤光片导致更多色卡呈现绿色。
