Conversion of spectral data expressed as cps into irradiance, transmittance or reflectance.
Usage
cps2irrad(x.sample, pre.fun = NULL, missing.pixs = numeric(0), ...)
cps2Rfr(x.sample, x.white, x.black = NULL, dyn.range = NULL)
cps2Tfr(x.sample, x.clear, x.opaque = NULL, dyn.range = NULL)
Arguments
- x.sample, x.clear, x.opaque, x.white, x.black
cps_spct objects.
- pre.fun
function A function applied to x.sample before conversion.
- missing.pixs
integer Index to positions in the detector array or scan missing in
x.sample
but present in the embedded calibration data. (Use only for emergency recovery of incomplete data!!)- ...
Additional arguments passed to
pre.fun
.- dyn.range
numeric The effective dynamic range of the instrument, if
NULL
it is automatically set based on integration time bracketing.
Value
A source_spct, filter_spct or reflector_spct object containing the spectral values expressed in physical units.
Note
In contrast to other classes defined in package 'photobiology', class "cps_spct" can have more than one column of cps counts in cases where the intention is to merge these values as part of the processing at the time the calibration is applied. However, being these functions the final step in the conversion to physical units, they accept as input only objects with a single "cps" column, as merging is expected to have been already done.