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HVEI
2009

Color rendering indices in global illumination methods

9 years 9 months ago
Color rendering indices in global illumination methods
Human perception of material colors depends heavily on the nature of the light sources that are used for illumination. One and the same object can cause highly different color impressions when lit by a vapor lamp or by daylight, respectively. On the basis of state-of-the-art colorimetric methods, we present a modern approach for the calculation of color-rendering indices (CRI), which were defined by the International Commission on Illumination (CIE) to characterize color reproduction properties of illuminants. We update the standard CIE method in three main points: first, we use the CIELAB color space; second, we apply a linearized Bradford transformation for chromatic adaptation; and finally, we evaluate color differences using the CIEDE2000 total color difference formula. Moreover, within a real-world scene, light incident on a measurement surface is composed of a direct and an indirect part. Neumann and Schanda [Proc. CGIV'06 Conf., Leeds, UK, pp. 283
David Geisler-Moroder, Arne Dür
Added 18 Feb 2011
Updated 18 Feb 2011
Type Journal
Year 2009
Where HVEI
Authors David Geisler-Moroder, Arne Dür
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