| Color perception |
| M |
| L |
| Power |
| S |
| Wavelength |
|
|
|
|
|
|
|
|
|
|
|
| Rods and cones
act as filters on the spectrum |
||||||||||
| • | To get the output
of a filter, multiply its response curve by the |
|||||||||
| spectrum,
integrate over all wavelengths |
||||||||||
| – | Each cone yields
one number |
|||||||||
| • | Q: How can we represent an entire spectrum
with 3 numbers? |
|||||||||
