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A numerical analysis of recent colour rendition metrics

Khanh, Tran Quoc and Trinh, Quang Vinh and Bodrogi, Peter Zsolt :
A numerical analysis of recent colour rendition metrics.
In: Lighting Research and Technology (LRT) (online first) pp. 1-13. ISSN 1477-0938
[Article] , (2016)

Abstract

The purpose of this paper is to show a possible way to move forward to a usable method for lighting practitioners to characterise and optimise the colour quality of white light sources for general interior lighting. First, correlations between recent colour rendition (colour quality) metrics are analysed. Second, linear and quadratic combinations of the two recently published Illuminating Engineering Society of North America metrics (Rf and Rg) are suggested to approximate two selected visually relevant colour quality metrics, the Memory Colour Quality Index and the NIST Colour Quality Scale Qp index. Numeric values of the optimum coefficients of these (Rf, Rg) combinations are provided for a comprehensive set of 546 light source spectral power distributions in two correlated colour temperature groups, warm white and cool white. The performance of the different combinations used to describe the metrics ranged between poor and good.

Item Type: Article
Erschienen: 2016
Creators: Khanh, Tran Quoc and Trinh, Quang Vinh and Bodrogi, Peter Zsolt
Title: A numerical analysis of recent colour rendition metrics
Language: English
Abstract:

The purpose of this paper is to show a possible way to move forward to a usable method for lighting practitioners to characterise and optimise the colour quality of white light sources for general interior lighting. First, correlations between recent colour rendition (colour quality) metrics are analysed. Second, linear and quadratic combinations of the two recently published Illuminating Engineering Society of North America metrics (Rf and Rg) are suggested to approximate two selected visually relevant colour quality metrics, the Memory Colour Quality Index and the NIST Colour Quality Scale Qp index. Numeric values of the optimum coefficients of these (Rf, Rg) combinations are provided for a comprehensive set of 546 light source spectral power distributions in two correlated colour temperature groups, warm white and cool white. The performance of the different combinations used to describe the metrics ranged between poor and good.

Journal or Publication Title: Lighting Research and Technology (LRT)
Number: online first
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Light Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology
Date Deposited: 16 Apr 2017 20:02
Additional Information:

doi 10.1177/1477153516632568

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