Withouck Martijn, Smet Kevin A G, Ryckaert Wouter R, Pointer Michael R, Deconinck Geert, Koenderink Jan, Hanselaer Peter
J Opt Soc Am A Opt Image Sci Vis. 2013 Jun 1;30(6):1248-55. doi: 10.1364/JOSAA.30.001248.
The perception of brightness of unrelated self-luminous colored stimuli of the same luminance has been investigated. The Helmholtz-Kohlrausch (H-K) effect, i.e., an increase in brightness perception due to an increase in saturation, is clearly observed. This brightness perception is compared with the calculated brightness according to six existing vision models, color appearance models, and models based on the concept of equivalent luminance. Although these models included the H-K effect and half of them were developed to work with unrelated colors, none of the models seemed to be able to fully predict the perceived brightness. A tentative solution to increase the prediction accuracy of the color appearance model CAM97u, developed by Hunt, is presented.
对相同亮度的不相关自发光彩色刺激的明度感知进行了研究。清晰地观察到了亥姆霍兹 - 科尔劳施（H-K）效应，即由于饱和度增加而导致的明度感知增加。将这种明度感知与根据六种现有的视觉模型、颜色外观模型以及基于等效亮度概念的模型所计算出的明度进行了比较。尽管这些模型都包含了H-K效应，并且其中一半是为处理不相关颜色而开发的，但似乎没有一个模型能够完全预测出感知到的明度。本文提出了一种提高由亨特开发的颜色外观模型CAM97u预测准确性的初步解决方案。
