colorSpec type |
quantity |
metric |
comments |
examples (objects, files, functions) |
---|---|---|---|---|
light |
power |
radiometric |
radiometric quantities are conventional in colorimetry |
D65.1nm |
photons/sec |
actinometric |
for color calculations, actinometric units are automatically converted to radiometric |
F96T12 |
|
responsivity |
power->electrical |
radiometric |
RGB camera response |
Flea2.RGB |
power->neural |
eye response |
xyz1931.1nm |
||
power->action |
examples are erythemal action, melatonin suppression, etc. |
erythemalSpectrum() |
||
photons->electrical |
actinometric |
silicon sensors usually use quantum efficiency |
Zyla_sCMOS.txt |
|
photons->neural |
response units might be photocurrent, or spikes/sec, etc. |
HigherPasserines |
||
photons->action |
photosynthesis is an example |
BeanPhotosynthesis.txt |
||
material |
reflectance |
NA |
|
CC_Avg20_spectrum_XYY.txt |
transmittance |
NA |
for color calculations, absorbance is automatically converted to transmittance |
Hoya |
|
responsivity |
material->electrical |
NA |
a spectrum of this type typically comes from both a light source and a camera |
scanner.ACES
|
Table 2.1 The types of spectra and their quantities