Factors influencing the appearance of CRT colors

Abstract

In order to predict accurately the color appearance of stimuli rendered on a CRT monitor, a theory of color context effects that applies to such stimuli is needed. Simultaneous contrast suggests that the color perceived at a particular monitor location may vary with the immediate context provided by the image at other locations on the monitor (the monitor context). Color constancy suggests that the color appearance of stimuli displayed on a monitor may vary with the ambient illumination of the room in which the monitor is viewed (the illumination context), at least if images from a monitor are processed by the visual system in the same way as reflective surfaces. This paper, reports initial experiments designed to measure psychophysically how the monitor context and the illumination context influence the appearance of stimuli presented on CRT color monitors. The emphasis, however, is on the effect of the illumination context.