linearize: linearize a colorSpec object - to make it ready for colorimetric calculations
Description
linearize spectra and return modified objectUsage
## S3 method for class 'colorSpec':
linearize( x )
Value
linearize returns a colorSpec object with linear quantities.
Details
If the quantity of x is not 'absorbance' then x is returned unchanged.
If the quantity is 'absorbance' then absorbance is converted to transmittance using
$$transmittance = 10^{-absorbance}$$
Surprisingly, there does not seem to be a similar logarithmic version of reflectance.
Plots with log(responsivity) is somewhat common, but does not seem to have a separate name.
I have not seen log(radiometric power).