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% Psychtoolbox:PsychColorimetric.
%
% Colorimetric and spectral calculations. See also the closely related
% Psychtoolbox:PsychColorimetricData.
%
% help Psychtoolbox % For an overview, triple-click me & hit enter.
% help PsychColorimetricData % For colorimetric calculations, triple-click me & hit enter.
% help PsychColorimetricMatFiles % For list of data .mat files, triple-click me & hit enter.
%
% AbsorbanceToAbsorbtance - Convert absorbance to absorbtance spectrum.
% CheckWls - Check consistency of two wavelength descriptions.
% ComputeDE - Compute vector length between matrix columns.
% ComputeDKL_M - Compute transformation matrix for DKL color space.
% ComputeAxialDensity - Compute axial optical density from specific density and path length.
% ConeIncToDKL - Convert from cone increments to DKL.
% ContrastToExcitation - Convert contrast to excitation coordinate.
% ContrastToIncrement - Convert contrast to incremental coordinates.
% DKLToConeInc - Convert from DKL to cone increments.
% EffectiveTrolandsFromLum - Compute effective trolands from luminance.
% EnergyToCones - Convert monochromatic energy to cone excitations.
% EnergyToQuanta - Convert monochromatic energy to quanta.
% ExcitationToContrast - Convert excitation coordinates to contrast.
% FindCovLinMod - Find linear model from covariance matrix.
% FindLinMod - Find linear model for an ensemble of vectors.
% FindModelWeights - Find the weights with respect to a linear model.
% FToRatio - Subroutine for Lab/Luv conversions.
% GenerateBlackBody - Generate spectra for black body radiators.
% GenerateCIEDay - Generate CIE daylights.
% IncrementToContrast - Convert incremental coordinates to contrast.
% IsomerizationsFromAbsorbptions - Compute isomerization rate from absorption rate.
% LabToXYZ - Convert from Lab to XYZ.
% LjgToXYZ - Convert from OSA UCS Ljg to XYZ (10 degree).
% LjgToXYZFun - Error function for LjgToXYZ numerical optimization.
% LumToRadiance - Get spectral radiance from luminance and relative spectrum of source.
% LumToTrolands - Convert luminance (cd/m2) to trolands.
% LuvToXYZ - Convert from Luv to XYZ.
% LMSToMacBoyn - Convert from cones to MacLeod-Boynton chromaticity.
% MakeFourierBasis - Make a set of Fourier component basis functions.
% MakeGaussBasis - Make a set of Gaussian basis functions.
% MakeItS - Force wavelength sampling spec. to S format.
% MakeItStruct - Force wavelength sampling spec. to struct foramt.
% MakeItWls - Force wavelength sampling spec. to wls format.
% MakeMonoPrimary - Make the spd of a monochromatic primary.
% MakeOrtho - Make a set of basis functions orthonormal.
% MakeUnitLength - Make the columns of a matrix have unit length.
% MonoImageToSRGB - Convert a monochrome image to an sRGB color image at passed chromaticity.
% M_PToP - Conversion matrix from source/dest. primaries.
% M_PToT - Conversion matrix from source primaries and dest. cmfs.
% M_TToP - Conversion matrix from source cmfs and dest. primaries.
% M_TToT - Conversion matrix from source/dest. cmfs.
% PhotonAbsorptionRate - Compute photon absoroption rate.
% PowerToTrolands - Convert monochromatic power to photopic trolands.
% PupilDiameterFromLum - Estimate pupil diameter from luminance.
% PsychMunsell - Munsell renotation to xyY conversion.
% QuantaToEnergy - Convert monochromatic quanta to energy.
% QuantaToTrolands - Convert monochromatic quanta to photopic trolands.
% RadianceToRetIrradiance - Convert spectral radiance to spectral retinal irradiance (power units).
% RetIrradianceToTrolands - Convert retinal irradiance (power units) to trolands.
% RetIrradianceToIsoRecSec - Convert retinal irradiance (power units) to iso. per receptor per second.
% SampleCircle - Sample points on a circle.
% SampleSphere - Sample points on a sphere.
% ShiftSpectra - Shift a spectral function along the wavelength axis.
% SPDToLinSPD - Find approximation within specified linear model.
% SPDToMetSPD - Find a metameric spd.
% SplineCmf - Spline color matching functions to new wavelength sampling.
% SplineRaw - Subroutine for other spline functions.
% SplineSpd - Spline a spectral power distribution to new wavelength sampling.
% SplineSrf - Spline a surface reflectance function to new wavelength sampling.
% SRGBPrimaryToXYZ - Convert between sRGB primary coordinates and XYZ.
% SRGBGammaCorrect - Convert between sRGB primary coordinates and 8-bit RGB values.
% SRGBGammaUncorrect - Convert between sRGB 8-bit RGB values and primary coordinates.
% SToWls - Convert S wavelength sampling spec to wls format.
% TestLxx - Test routine for Lab/Luv calculations.
% TriToMetSPD - Compute metamer from tristimulus coordinates.
% TrolandsToLum - Convert trolands to luminance (cd/m2).
% TrolandsToPower - Convert monochromatic photopic trolands to power.
% TrolandsToQuanta - Convert monochromatic photopic trolands to quanta.
% TrolandsToRetIrradiance - Get retinal irradiance (power units) from spectrum and trolands.
% WattsToRetIrradiance - Get absolute retinal irradiance (power units) from rel. spectrum and watts/area.
% uvTols - Convert between CIE u'v' and a cone based (ls) chromaticity.
% uvToxy - Convert between CIE u'v' and CIE xy chromaticity.
% uvYToXYZ - Convert between u'v'Y and XYZ.
% WlsToS - Convert wls wavelength sampling spec to S format.
% WlsToT - Compute identity color matching matrix from wavelength sampling.
% xyTouv - Convert CIE xy chromaticity to CIE u'v' chromaticity.
% xyYToXYZ - Convert between xyY and XYZ.
% XYZToF - Subroutine for Lab/Luv calculations.
% XYZToLab - Convert between XYZ and Lab.
% XYZToLjg - Convert between XYZ (10 degree) and OSA UCS Ljg.
% XYZToLuv - Convert between XYZ and Luv.
% XYZToSRGBPrimary - Convert between XYZ and sRGB primary coordinates.
% XYZTouv - Compute uv chromaticities from XYZ.
% XYZTouvY - Convert between XYZ and u'v'Y.
% XYZToxyY - Convert between XYZ and xyY.
%
%
% Copyright (c) 1996-2008 by Denis Pelli & David Brainard
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