Colour preference, naturalness, vividness and colour quality metrics, Part 3: Experiments with makeup products and analysis of the complete warm white dataset

• Published in: Lighting research & technology (London, England : 2001) Vol. 50; no. 2; pp. 218 - 236
• Main Authors: Khanh, TQ, Bodrogi, P
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01-04-2018; Sage Publications Ltd
• Subjects: Color temperature; Light emitting diodes; Light sources; White light
• ISSN: 1477-1535; 1477-0938
• DOI: 10.1177/1477153516669558

Light source colour quality is a complex phenomenon with several visual and cognitive components. Subjective colour preference, naturalness and vividness assessments of reddish cosmetic products in a viewing booth lit by light sources with a correlated colour temperature of 3200 K and to 550 lx were analysed and modelled by a new combined colour quality formula – a linear combination of a colour fidelity index and a measure of chroma change. Results of the warm white light sources described in all three parts of this work were merged. They were modelled by optimising the parameters of the same formula. The formula supports multi-LED light sources with moderately accentuated local spectral maxima to enhance object chroma over a moderate range.