Radiometry

specvar

The specvar functions determines the variance and standard deviation of an arbitrary number of input spectra.

The specbandwidth function determines the bandwidth of a narrowband spectral power distributions (SPDs) at one half peak maximum or other thresholds.

The speccentroid function determines the spectral centroid or “center of mass” for any given spectral power distribution.

The specpeak function determines the spectral peak wavelength for any given spectral power distribution.

The specspread functions determines the standard deviation of spectral centroids, also called spectral spread.

The speceval function evaluates spectral power distribution(s) for several parameters.

Calculates the spectral radiant exitance M of a Planck radiator for a given black body temperature

Calculates the integrated photometric value Y of a V(λ) weighted spectral power distribution

Weights given spectra with provided reference weighting functions and returns the integrated values

Returns the α-opic or blue light hazard luminous efficacy K for any given spectral power distribution

Creates a sRGB colour image from a hyperspectral image matrix

Creates an illustration of spectral false colour slices of several input spectra

Enables the target laser in a JETI specbos spectroradiometer

Disables the target laser in a JETI specbos spectroradiometer

Triggers a measurement of a JETI specbos spectroradiometer

Creates a serial connection to a JETI specbos spectroradiometer

Creates a statistical evaluation of an arbitrary number of spectra and plots the mean values, standard deviation and the minima and maxima values

Derives a photometric or radiometric image from a hyper-spectral image matrix

Transforms spectra to MATLAB/Octave sRGB values

Derives the Correlated Colour Temperature (CCT) for a given spectral power distribution (SPD)