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Title: Chroma Shift and Gamut Shape: Going Beyond Average Color Fidelity and Gamut Area

Abstract

Though sometimes referred to as a two-measure system for evaluating color rendition, IES TM-30-15 includes key components that go beyond the two high-level average values, Fidelity Index (IES Rf) and Gamut Index (IES Rg). This article focuses on the Color Vector Graphic and Local Chroma Shift (IES Rcs,hj), discussing the calculation methods for these evaluation tools and providing context for the interpretation of the values. We illustrate why and how the Color Vector Graphic and Local Chroma Shift values capture information about color rendition that is impossible to describe with average measures (such as CIE Ra, IES Rf, or IES Rg), but that is pertinent to more completely quantifying color rendition, and to understanding human evaluations of color quality in the built environment. We also present alternatives for quantifying the Color Vector Graphic and Local Chroma Shift values, which can inform the development of future measures.

Authors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1434887
Report Number(s):
PNNL-SA-127957
Journal ID: ISSN 1550--2724; BT0301000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: IES 2017 Annual Conference Proceedings, August 10-12, 2017, Portland, Oregon
Country of Publication:
United States
Language:
English
Subject:
IES TM-30-15; color rendition; chroma shift; gamut shape; color fidelity

Citation Formats

Royer, Michael P., Houser, Kevin W., and David, Aurelien. Chroma Shift and Gamut Shape: Going Beyond Average Color Fidelity and Gamut Area. United States: N. p., 2017. Web. doi:10.1080/15502724.2017.1372203.
Royer, Michael P., Houser, Kevin W., & David, Aurelien. Chroma Shift and Gamut Shape: Going Beyond Average Color Fidelity and Gamut Area. United States. doi:10.1080/15502724.2017.1372203.
Royer, Michael P., Houser, Kevin W., and David, Aurelien. Fri . "Chroma Shift and Gamut Shape: Going Beyond Average Color Fidelity and Gamut Area". United States. doi:10.1080/15502724.2017.1372203.
@article{osti_1434887,
title = {Chroma Shift and Gamut Shape: Going Beyond Average Color Fidelity and Gamut Area},
author = {Royer, Michael P. and Houser, Kevin W. and David, Aurelien},
abstractNote = {Though sometimes referred to as a two-measure system for evaluating color rendition, IES TM-30-15 includes key components that go beyond the two high-level average values, Fidelity Index (IES Rf) and Gamut Index (IES Rg). This article focuses on the Color Vector Graphic and Local Chroma Shift (IES Rcs,hj), discussing the calculation methods for these evaluation tools and providing context for the interpretation of the values. We illustrate why and how the Color Vector Graphic and Local Chroma Shift values capture information about color rendition that is impossible to describe with average measures (such as CIE Ra, IES Rf, or IES Rg), but that is pertinent to more completely quantifying color rendition, and to understanding human evaluations of color quality in the built environment. We also present alternatives for quantifying the Color Vector Graphic and Local Chroma Shift values, which can inform the development of future measures.},
doi = {10.1080/15502724.2017.1372203},
journal = {},
issn = {1550--2724},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {8}
}

Conference:
Other availability
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