chromad
Calculates chromatic adaptation matrices for the CIE 1931 x,y,z chromaticity
Calculation functions
cieblh
Evaluates the Blue Light Hazard for a given spectral radiance L according to CIE S 009
cieCAM02
Determines the colour appearance model parameters of the CIECAM02 forward model
cieCAM02inv
Determines the colour appearance model parameters of the CIECAM02 inverse model
ciecct2spec
Calculates the corresponding spectral daylight distribution for a given CCT
ciecfi
Determines the colour fidelity index
ciecri
Determines the colour rendering index
cieedq
Determines the α-opic equivalent daylight D65 quantity for a given spectrum
cief1
Calculates the f1 error of photometers, or more precisely the mismatch index to the V(λ) curve
ciek
Returns the α-opic or blue light hazard luminous efficacy K for any given spectral power distribution
ciemedi
Determines the melanopic equivalent daylight D65 illuminance for a given spectrum
ciesky
Calculates the corresponding luminance distribution for a Tregenza hemisphere with 145 patches according to the CIE procedure described in ISO 15469
ciespec
Contains various reference spectra provided by the CIE
ciespec2aopic
Derives the α-opic quantities from any given spectral power distribution
ciespec2cct
Derives the Correlated Colour Temperature (CCT) for a given spectral power distribution (SPD)
ciespec2unit
Weights given spectra with provided reference weighting functions and returns the integrated values
ciespec2uvw
Calculates the normalized CIE 1960 Uniform Colour Space (UCS) coordinates u,v,w for a given spectral power distribution
ciespec2wp
Determines the white point of an illuminant’s spectral power distribution
ciespec2xyz
Calculates the normalized CIE 1931 colour coordinates x,y,z for a given spectral power distribution
ciespec2Y
Calculates the integrated photometric value Y of a V(λ) weighted spectral power distribution