CIE tristimulus values Sums of products - wavelength by wavelength - of illumination P, sample reflection R (transmission) and spectral matching functions x,y,z; usually normalised to give Y=100 for the perfect white (zero absorption)
Sums of products - wavelength by wavelength - of illumination P, sample reflection R (transmission) and spectral matching functions x,y,z;
usually normalised to give Y=100 for the perfect white (zero absorption)