Primary Considerations related to the Hunt Effect

Abstract

As well known, the Hunt effect is that saturation increases with luminance increment. The effect has been explained as a brain information processing in the original paper of Hunt. But there remain an unsolved question that is there any contribution of adjusting the sensitivity of the color matching functions to the effect? In this paper, the unsolved question is discussed based on our chromatic adaptation model called Maximum Color Separation (MCS). Based on the model, the relationship between the effect and the contribution of adjusting the sensitivity of the color matching functions is discussed.