Factors Affecting the Appearance of Coloured Images on a Video Display Monitor*

Abstract

AbstractThis paper summarizes the findings of a three-year research project into the factors affecting the colour appearance of complex images on different media and under different viewing conditions. A series of experiments was conducted, with observers using the magnitude estimation technique to scale the lightness, colourfulness and hue of a sequence of coloured test patches in a complex field. The parameters studied included the type of illuminant, level of illumination, lightness of background, and medium (luminous colours were displayed on a high-resolution colour monitor and non-luminous colours were presented as patches on white, grey and black cards in a viewing cabinet). A mathematical model, based on that developed by Hunt, was shown to perform better in predicting colour appearance under a variety of viewing conditions than any other known model. Further experiments investigated the effect of chromatic induction on colour appearance, by varying the lightness, colourfulness and hue of an induc...