Effect of small deviations from normal colour vision on colour matching of display and surface colours

摘要

Eleven observers made colour matches between LCD and CRT monitors and paint samples in viewing conditions similar to those of soft-proofing. Nine observers had normal colour vision, whereas two observers were slightly anomalous. The only colours in which the anomalous observers made matches significantly different from the mean were neutrals and yellow, while the magnitude and direction of deviations depended on the spectral properties of the display primaries. We conclude that the practical effect of deviations from normal colour vision in industrial applications depends on the spatial separation between the samples being matched, as well as on the spectral reflectance or emittance properties of these samples. A metameric rule test is the most effective method of detecting slight colour vision deficiencies. being superior to Ishihara pseudoisochromatic plates and to the Farnsworth- Munsell 100 hue test.