Abstract

The detection of chromatic deviations from white (Iivanainen & Rovamo, 1991) and yellow (Rovamo & Iivanainen, 1991) and the desaturation threshold of blue after homochromatic adaptation of short duration (Iivanainen & Rovamo, 1992) become independent of visual field location when the stimulus is M-scaled by magnifying its size with increasing eccentricity in inverse proportion to the lowest local sampling density of across the human retina (Rovamo & Virsu, 1979). M-scaling also makes the perceived distinctness of a yellow-blue, equiluminous, chromatic border at eccentricities greater than 1.25 deg (Blatherwick & Hallet, 1989) independent of eccentricity.

© 1992 Optical Society of America