[trolands] =...
Compute trolands from retinal irradiance in watts/um2-wlinterval
See Wyszecki and Stiles, 1982, p. 103 for the conversions.
Input variables: irradianceWatts - retinal irradiance in watts/um2-wlinterval.
irradianceS - the wavelength sampling information for the relativeSpectrum.
photopic - what kind of trolands: 'Photopic' (Default), '
JuddVos', 'Scotopic'.
species - what species determins eye length: 'Human' (Default), 'Monkey'.
source - source for eye length estimate, passed directly to
EyeLength and inherits its default.
07/18/03 dhb Wrote it.
Psychtoolbox/PsychColorimetric/RetIrradianceToTrolands.m