Color Quality Scale

Color Quality Scale

Color Quality Scale (CQS) is a quantitative measure of the ability of a light source to reproduce colors of illuminated objects. Developed by researchers at NIST[1], the measure is a possible answer to the criticism of the widely used color rendering index. [2]

Pousset et al.[3] developed a psychophysical experiment in order to evaluate light quality of LED lightings. It is based on colored samples used in the Color Quality Scale. Predictions of the CQS and results from visual measurements were compared.


References

  1. ^ Development of a Color Quality Scale
  2. ^ Davis, W. and Ohno, Y.. "Toward an improved color rendering metric". Proc. of SPIE 5941: 59411G--1. http://physlab2.nist.gov/Divisions/Div844/facilities/photo/Publications/DavisOhnoSPIE2005.pdf. 
  3. ^ Pousset, N. Obein, G. & Razet, A.. "Visual experiment on LED lighting quality with color quality scale colored samples". Proceedings of CIE 2010 : Lighting quality and energy efficiency, Vienna, Austria, 2010: 722–729. http://nicolas_pousset.perso.neuf.fr/Recherche/Article/CQS.pdf. 

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