7

International standards for colour

T.M. Goodman,     National Physical Laboratory, UK

Abstract:

This chapter discusses the internationally recognised systems and conventions that underpin colorimetry. These provide a framework for the communication and specification of colour, and for the evaluation of colour matches, colour differences and colour appearance.

Key words

Chromaticity

CIELAB

CIELUV

colorimetry

colour match

colour difference

colour appearance

illuminant

standard colorimetric observer

standard source

whiteness

7.1 Introduction

Colour is a perception, not a physical property of a material, light source or other artefact, and therefore cannot be quantified in purely physical terms. Thus colorimetry (the measurement of colours) ...

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