specbar
The specbar function adds a spectral colour bar to a figure.
Radiometry
ciespecagetrans
The ciespecagetrans function returns the age dependent ocular spectral transmission factors.
ciespecagecorr
The ciespecagecorr function returns the age dependent ocular spectral transmission correction factors according to CIE S026:2018.
specbandwidth
The specbandwidth function determines the bandwidth of a narrowband spectral power distributions (SPDs) at one half peak maximum or other thresholds.
speccentroid
The speccentroid function determines the spectral centroid or “center of mass” for any given spectral power distribution.
specpeak
The specpeak function determines the spectral peak wavelength for any given spectral power distribution.
specspread
The specspread functions determines the standard deviation of spectral centroids, also called spectral spread.
speceval
The speceval function evaluates spectral power distribution(s) for several parameters.
specsky
Creates spectral radiance data for a Tregenza hemisphere with 145 patches for CIE sky types 3 and 12
planck
Calculates the spectral radiant exitance M of a Planck radiator for a given black body temperature
ciespec2unit
Weights given spectra with provided reference weighting functions and returns the integrated values
ciek
Returns the α-opic or blue light hazard luminous efficacy K for any given spectral power distribution
hyperspec2srgb
Creates a sRGB colour image from a hyperspectral image matrix
plotspecslice
Creates an illustration of spectral false colour slices of several input spectra
ciespec2uvw
Calculates the normalized CIE 1960 Uniform Colour Space (UCS) coordinates u,v,w for a given spectral power distribution
jetimeas
Triggers a measurement of a JETI specbos spectroradiometer
jeticon
Creates a serial connection to a JETI specbos spectroradiometer
plotspecrange
Creates a statistical evaluation of an arbitrary number of spectra and plots the mean values, standard deviation and the minima and maxima values
hyperspec2unit
Derives a photometric or radiometric image from a hyper-spectral image matrix
ciespec2cct
Derives the Correlated Colour Temperature (CCT) for a given spectral power distribution (SPD)