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. developed a psychophysical experiment in order to evaluate light quality of LED light sources.[3] 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 from NIST
  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.