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ccdpeakstats - spectral peak statistics of an image
ccdpeakstats
[parameter=value]
ccdpeakstats looks at all spectra through
a cube and for signals above a clip level determined by sigma= and nsigma=
it will compute the peak signal, mean channel and channel width within
a segment that is deemed to be "single" line (as determined by minchan=
and maxgap=).
The following parameters are recognized in any order
if the keyword is also given:
- in=
- Input image filename [???]
- sigma=
- Noise level [???]
- nsigma=
- Number of sigma over which line segments
are detected. The cutoff is determined by sigma*nsigma. Default: 5
- minchan=
- Min number of channels over cutoff to count. Default: 5
- maxgap=
- Max number
of channels below cutoff allowed in. Default: 2
- x=
- Pick an X pixel (0....) for
debug one spectrum []
- y=
- Pick an Y pixel (0....) for debug one spectrum []
- tab=
- If given, print out data values []
% ccdpeakstats sample.ccd
# peak <channel> FWHM #channels
0.0232928 562.954 1.95056 7
0.0463414 856.056 3.31661 13
ccdstat(1NEMO)
Peter Teuben
2-nov-15 V0.1 Created PJT
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