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| determinePsf (self, exposure, psfCandidateList, metadata=None, flagKey=None) |
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str | _DefaultName = "psfDeterminer.Piff" |
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A measurePsfTask PSF estimator using Piff as the implementation.
◆ determinePsf()
lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerTask.determinePsf |
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self, |
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exposure, |
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psfCandidateList, |
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metadata = None , |
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flagKey = None |
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) |
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Determine a Piff PSF model for an exposure given a list of PSF
candidates.
Parameters
----------
exposure : `lsst.afw.image.Exposure`
Exposure containing the PSF candidates.
psfCandidateList : `list` of `lsst.meas.algorithms.PsfCandidate`
A sequence of PSF candidates typically obtained by detecting sources
and then running them through a star selector.
metadata : `lsst.daf.base import PropertyList` or `None`, optional
A home for interesting tidbits of information.
flagKey : `str` or `None`, optional
Schema key used to mark sources actually used in PSF determination.
Returns
-------
psf : `lsst.meas.extensions.piff.PiffPsf`
The measured PSF model.
psfCellSet : `None`
Unused by this PsfDeterminer.
The documentation for this class was generated from the following file:
- python/lsst/meas/extensions/piff/piffPsfDeterminer.py