lsst.meas.deblender gb700894bec+a69e41786e
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Public Member Functions | Public Attributes | Static Public Attributes | Protected Member Functions | Static Protected Attributes | List of all members
lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask Class Reference
Inheritance diagram for lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask:

Public Member Functions

 __init__ (self, schema, peakSchema=None, **kwargs)
 
 addSchemaKeys (self, schema)
 
 run (self, exposure, sources)
 
 deblend (self, exposure, srcs, psf)
 
 preSingleDeblendHook (self, exposure, srcs, i, fp, psf, psf_fwhm, sigma1)
 
 postSingleDeblendHook (self, exposure, srcs, i, npre, kids, fp, psf, psf_fwhm, sigma1, res)
 
 isLargeFootprint (self, footprint)
 
 isMasked (self, footprint, mask)
 
 skipParent (self, source, mask)
 

Public Attributes

 schema
 
 toCopyFromParent
 
 peakSchemaMapper
 
 nChildKey
 
 psfKey
 
 psfCenterKey
 
 psfFluxKey
 
 tooManyPeaksKey
 
 tooBigKey
 
 maskedKey
 
 deblendFailedKey
 
 deblendSkippedKey
 
 deblendRampedTemplateKey
 
 deblendPatchedTemplateKey
 
 hasStrayFluxKey
 
 peakCenter
 
 peakIdKey
 
 nPeaksKey
 
 parentNPeaksKey
 

Static Public Attributes

 ConfigClass = SourceDeblendConfig
 

Protected Member Functions

 _getPsfFwhm (self, psf, position)
 

Static Protected Attributes

str _DefaultName = "sourceDeblend"
 

Detailed Description

Split blended sources into individual sources.

This task has no return value; it only modifies the SourceCatalog in-place.

Definition at line 164 of file sourceDeblendTask.py.

Constructor & Destructor Documentation

◆ __init__()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.__init__ (   self,
  schema,
  peakSchema = None,
**  kwargs 
)
Create the task, adding necessary fields to the given schema.

Parameters
----------
schema : `lsst.afw.table.Schema`
    Schema object for measurement fields; will be modified in-place.
peakSchema : `lsst.afw.table.peakSchema`
    Schema of Footprint Peaks that will be passed to the deblender.
    Any fields beyond the PeakTable minimal schema will be transferred
    to the main source Schema. If None, no fields will be transferred
    from the Peaks
**kwargs
    Additional keyword arguments passed to ~lsst.pipe.base.task

Definition at line 172 of file sourceDeblendTask.py.

Member Function Documentation

◆ _getPsfFwhm()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask._getPsfFwhm (   self,
  psf,
  position 
)
protected

Definition at line 281 of file sourceDeblendTask.py.

◆ addSchemaKeys()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.addSchemaKeys (   self,
  schema 
)

Definition at line 209 of file sourceDeblendTask.py.

◆ deblend()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.deblend (   self,
  exposure,
  srcs,
  psf 
)
Deblend.

Parameters
----------
exposure : `lsst.afw.image.Exposure`
    Exposure to be processed
srcs : `lsst.afw.table.SourceCatalog`
    SourceCatalog containing sources detected on this exposure
psf : `lsst.afw.detection.Psf`
    Point source function

Returns
-------
None

Definition at line 285 of file sourceDeblendTask.py.

◆ isLargeFootprint()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.isLargeFootprint (   self,
  footprint 
)
Returns whether a Footprint is large

'Large' is defined by thresholds on the area, size and axis ratio.
These may be disabled independently by configuring them to be non-positive.

This is principally intended to get rid of satellite streaks, which the
deblender or other downstream processing can have trouble dealing with
(e.g., multiple large HeavyFootprints can chew up memory).

Definition at line 504 of file sourceDeblendTask.py.

◆ isMasked()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.isMasked (   self,
  footprint,
  mask 
)
Returns whether the footprint violates the mask limits

Definition at line 526 of file sourceDeblendTask.py.

◆ postSingleDeblendHook()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.postSingleDeblendHook (   self,
  exposure,
  srcs,
  i,
  npre,
  kids,
  fp,
  psf,
  psf_fwhm,
  sigma1,
  res 
)

Definition at line 501 of file sourceDeblendTask.py.

◆ preSingleDeblendHook()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.preSingleDeblendHook (   self,
  exposure,
  srcs,
  i,
  fp,
  psf,
  psf_fwhm,
  sigma1 
)

Definition at line 498 of file sourceDeblendTask.py.

◆ run()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.run (   self,
  exposure,
  sources 
)
Get the PSF from the provided exposure and then run deblend.

Parameters
----------
exposure : `lsst.afw.image.Exposure`
    Exposure to be processed
sources : `lsst.afw.table.SourceCatalog`
    SourceCatalog containing sources detected on this exposure.

Definition at line 267 of file sourceDeblendTask.py.

◆ skipParent()

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.skipParent (   self,
  source,
  mask 
)
Indicate that the parent source is not being deblended

We set the appropriate flags and mask.

Parameters
----------
source : `lsst.afw.table.SourceRecord`
    The source to flag as skipped
mask : `lsst.afw.image.Mask`
    The mask to update

Definition at line 537 of file sourceDeblendTask.py.

Member Data Documentation

◆ _DefaultName

str lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask._DefaultName = "sourceDeblend"
staticprotected

Definition at line 170 of file sourceDeblendTask.py.

◆ ConfigClass

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.ConfigClass = SourceDeblendConfig
static

Definition at line 169 of file sourceDeblendTask.py.

◆ deblendFailedKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.deblendFailedKey

Definition at line 227 of file sourceDeblendTask.py.

◆ deblendPatchedTemplateKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.deblendPatchedTemplateKey

Definition at line 238 of file sourceDeblendTask.py.

◆ deblendRampedTemplateKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.deblendRampedTemplateKey

Definition at line 233 of file sourceDeblendTask.py.

◆ deblendSkippedKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.deblendSkippedKey

Definition at line 230 of file sourceDeblendTask.py.

◆ hasStrayFluxKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.hasStrayFluxKey

Definition at line 243 of file sourceDeblendTask.py.

◆ maskedKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.maskedKey

Definition at line 223 of file sourceDeblendTask.py.

◆ nChildKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.nChildKey

Definition at line 210 of file sourceDeblendTask.py.

◆ nPeaksKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.nPeaksKey

Definition at line 258 of file sourceDeblendTask.py.

◆ parentNPeaksKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.parentNPeaksKey

Definition at line 262 of file sourceDeblendTask.py.

◆ peakCenter

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.peakCenter

Definition at line 250 of file sourceDeblendTask.py.

◆ peakIdKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.peakIdKey

Definition at line 253 of file sourceDeblendTask.py.

◆ peakSchemaMapper

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.peakSchemaMapper

Definition at line 195 of file sourceDeblendTask.py.

◆ psfCenterKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.psfCenterKey

Definition at line 214 of file sourceDeblendTask.py.

◆ psfFluxKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.psfFluxKey

Definition at line 216 of file sourceDeblendTask.py.

◆ psfKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.psfKey

Definition at line 212 of file sourceDeblendTask.py.

◆ schema

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.schema

Definition at line 188 of file sourceDeblendTask.py.

◆ toCopyFromParent

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.toCopyFromParent

Definition at line 189 of file sourceDeblendTask.py.

◆ tooBigKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.tooBigKey

Definition at line 221 of file sourceDeblendTask.py.

◆ tooManyPeaksKey

lsst.meas.deblender.sourceDeblendTask.SourceDeblendTask.tooManyPeaksKey

Definition at line 218 of file sourceDeblendTask.py.


The documentation for this class was generated from the following file: