In colorimetry, the irradiance spectrum is weighted with the luminosity function to obtain the perceived luminosity, and the tristimulus sensitivity functions to obtain the perceived RGB-representation.
How do these functions (just one scalar for each wavelength) relate to each other?
I only found these weighting functions (as numerical arrays) in the matlab package pspectro. There however, the sensitivity function for gamma (= green) is completely identical to the luminosity function, which seems odd. Is it correct?