Quantification of illuminant metamerism for four coloration systems via metameric mismatch gamuts

Abstract

AbstractIlluminant metamerism was evaluated by generating achromatic metamers for an acrylic‐enamel coating, an acrylobutadiene styrene polymer, a polyester textile, and a nylon textile using computer colorant formulation techniques. The tristimulus matching algorithm used to generate the metamers was based on Kubelka‐Munk turbid media theory. By definition, each set of metamers that were formulated to match under CIE illuminant D65 for the 1964 CIE standard observer would mismatch under a test illuminant, forming a gamut of colorimetric coordinates. These metameric mismatch gamuts were evaluated quantitatively using multivariate statistics. Illuminants A, F2, and F11, representing incandescent, cool‐white fluorescent, and narrow‐band fluorescent, respectively, were used as test illuminants. Illuminant similarities, coloration system similarities, tristimulus variability, and reference illuminant selection criteria were evaluated.