MEASUREMENT SCALE FOR COLOUR PERCEPTION

Eric Benoit

Abstract

The colour, with the particularity to be defined simultaneously as a physical quantity and as a psychophysical quantity, is one of the concepts that can link hard sciences and behavioural sciences. From the viewpoint of behavioural sciences colours are basically measured with nominal scales, and in hard science colours are measured with interval scales. Our hypothesis is that the main relation that must be preserved during colour measurement is a metric. We suggest then that colours must be measured with metrical scales. The fuzzy metrical scale is preferred due to the possibility to define it like a nominal scale.

Keywords

measurement theory, colour, scale, distance, fuzzy subsets theory

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IMEKO-WC-2012-TC7-O10.pdf

DOI

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IMEKO TC

TC7 - Measurement Science

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