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Color notation by visual interpolation in colour order systems: How accurate is it?
Author(s) -
Döring Günter
Publication year - 1990
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.5080150208
Subject(s) - notation , interpolation (computer graphics) , computer science , artificial intelligence , computer vision , mathematics , sample (material) , arithmetic , image (mathematics) , chemistry , chromatography
Systematic collections of colour samples from colour order systems are used in many cases, e.g., in architecture and in design. Usually, the colour that a designer has in mind is not found as a colour sample within the collection at hand, but has to be determined by visual interpolation between the available samples. However, because the colour coordinates of the available samples deviate from those of the aim points, these deviations give rise to uncertainties during visual interpolation. I have investigated the influence of the colorimetric accuracy of the colour samples in the collection used on the precision of colour notation by visual interpolation. This research shows that the accuracy of notation by visual interpolation is not influenced by the colorimetric precision of the colour collection alone, but also by the magnitude of the colour differences between adjacent colour samples in the respective colour collection and by the directions of the colour differences from the aim points.