getskytype
Determines the CIE general standard sky type for a given luminance distribution of a Tregenza hemisphere
Frederic Rudawski
egrid
Creates a two-dimensional coordinate grid for illuminance measurements, depending on the size of the measurement area
ciewhitepoint
Returns the white point in CIE 1931 x and y chromaticity of any CIE standard illuminant
ciespec2Y
Calculates the integrated photometric value Y of a V(λ) weighted spectral power distribution
ciespec2xyz
Calculates the normalized CIE 1931 colour coordinates x,y,z for a given spectral power distribution
ciespec2wp
Determines the white point of an illuminant’s spectral power distribution
ciespec2unit
Weights given spectra with provided reference weighting functions and returns the integrated values
ciesky
Calculates the corresponding luminance distribution for a Tregenza hemisphere with 145 patches according to the CIE procedure described in ISO 15469
ciek
Returns the α-opic or blue light hazard luminous efficacy K for any given spectral power distribution
cief1
Calculates the f1 error of photometers, or more precisely the mismatch index to the V(λ) curve
ciespec2aopic
Derives the α-opic quantities from any given spectral power distribution
cieedq
Determines the α-opic equivalent daylight D65 quantity for a given spectrum
ciemedi
Determines the melanopic equivalent daylight D65 illuminance for a given spectrum
ldc2phi
Calculates the luminous flux Φ of a luminaire from its luminous intensity distribution curve
plot2dldc
Plots a 2D illustration of a given light intensity distribution curve
tregenzadist
Determines the nearest neighbour patches and the angular distance to a given tregenza hemisphere patch
hyperspec2srgb
Creates a sRGB colour image from a hyperspectral image matrix
plotcfi
Creates a plot of the chromatic shift in a’ and b’ dimension according to the Colour Fidelity Index in CIE 224:2017 and ANSI TM30-20
plotcieuv_
Plots the CIE 1976 u’ and v’ chromaticity diagram
plotcieuv
Plots the CIE 1960 u and v chromaticity diagram