AssembleChi2CoaddTask#

class lsst.drp.tasks.assemble_chi2_coadd.AssembleChi2CoaddTask(initInputs, **kwargs)#

Bases: PipelineTask

Assemble a chi^2 coadd from a collection of multi-band coadds

References#

Multicolor Detection of Faint Galaxies in the Hubble Deep Field”, The Astronomical Journal, vol. 117, no. 1, pp. 68–74, 1999. doi:10.1086/300689.

http://pan-starrs.ifa.hawaii.edu/project/people/kaiser/imageprocessing/im%2B%2B.pdf # noqa: E501, W505

Methods Summary

combinedMasks(masks)

Combine the mask plane in each input coadd

run(inputCoadds)

Assemble the chi2 coadd from the multiband coadds

runQuantum(butlerQC, inputRefs, outputRefs)

Do butler IO and transform to provide in memory objects for tasks run method.

Methods Documentation

combinedMasks(masks: list[MaskX]) → MaskX#

Combine the mask plane in each input coadd

Parameters#

mMask:

The MultibandMask in each band.

Returns#

result:

The resulting single band mask.

run(inputCoadds: list[Exposure]) → Struct#

Assemble the chi2 coadd from the multiband coadds

Parameters#

inputCoadds:

The coadds to combine into a single chi2 coadd.

Returns#

result:

The chi2 coadd created from the input coadds.

runQuantum(butlerQC, inputRefs, outputRefs)#

Do butler IO and transform to provide in memory objects for tasks run method.

Parameters#

butlerQCQuantumContext

A butler which is specialized to operate in the context of a lsst.daf.butler.Quantum.

inputRefsInputQuantizedConnection

Datastructure whose attribute names are the names that identify connections defined in corresponding PipelineTaskConnections class. The values of these attributes are the lsst.daf.butler.DatasetRef objects associated with the defined input/prerequisite connections.

outputRefsOutputQuantizedConnection

Datastructure whose attribute names are the names that identify connections defined in corresponding PipelineTaskConnections class. The values of these attributes are the lsst.daf.butler.DatasetRef objects associated with the defined output connections.