Theoretical considerations on small color differences ascribed to the standard observer made on the basis of individual color‐matching functions

Abstract

An analytical method to determine how colormatching functions influence the perception of chromaticity differences is proposed. We show that, as a consequence of the observer metamerism, a metameric colormatch perceived by one observer may appear to be a significant mismatch to a different observer. It is also shown that, on average, the differences between the color-matchings made by two different observers can be estimated to be in the order of 2 CIELAB units.