Formulation and testing of an incomplete‐chromatic‐adaptation model

A mathematical model of chromatic adaptation for calculating corresponding colors across changes of illumination based on the Hunt color appearance model is formulated and tested. This model consists of a modified von Kries transform that accounts for incomplete levels of adaptation. The model predicts that adaptation will be less complete as the saturation of the adapting stimulus increases and more complete as the luminance of the adapting stimulus increases. An experiment is described in which achromatic appearance is measured for various adapting conditions. The model is tested with these experimental results as well as results from another study and found to be significantly better at predicting corresponding colors than other proposed models.