lsst.cp.pipe.cpDarkTask.CpDarkTask Class Reference

Inheritance diagram for lsst.cp.pipe.cpDarkTask.CpDarkTask:

Public Member Functions
def	__init__ (self, **kwargs)
def	run (self, inputExp)

Static Public Attributes
	ConfigClass = CpDarkTaskConfig

Detailed Description

Combine pre-processed dark frames into a proposed master calibration.

Definition at line 75 of file cpDarkTask.py.

Constructor & Destructor Documentation

__init__()

def lsst.cp.pipe.cpDarkTask.CpDarkTask.__init__	(		self,
		**	kwargs
	)

Definition at line 83 of file cpDarkTask.py.

    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.makeSubtask("repair")
 

Member Function Documentation

run()

def lsst.cp.pipe.cpDarkTask.CpDarkTask.run	(		self,
			inputExp
	)

Preprocess input exposures prior to DARK combination.

This task detects and repairs cosmic rays strikes.

Parameters
----------
inputExp : `lsst.afw.image.Exposure`
    Pre-processed dark frame data to combine.

Returns
-------
outputExp : `lsst.afw.image.Exposure`
    CR rejected, ISR processed Dark Frame."

Definition at line 87 of file cpDarkTask.py.

    def run(self, inputExp):
        """Preprocess input exposures prior to DARK combination.
 
        This task detects and repairs cosmic rays strikes.
 
        Parameters
        ----------
        inputExp : `lsst.afw.image.Exposure`
            Pre-processed dark frame data to combine.
 
        Returns
        -------
        outputExp : `lsst.afw.image.Exposure`
            CR rejected, ISR processed Dark Frame."
        """
        psf = measAlg.SingleGaussianPsf(self.config.psfSize,
                                        self.config.psfSize,
                                        self.config.psfFwhm/(2*math.sqrt(2*math.log(2))))
        inputExp.setPsf(psf)
        scaleExp = inputExp.clone()
        mi = scaleExp.getMaskedImage()
 
        # DM-23680:
        # Darktime scaling necessary for repair.run() to ID CRs correctly.
        scale = inputExp.getInfo().getVisitInfo().getDarkTime()
        if np.isfinite(scale) and scale != 0.0:
            mi /= scale
 
        self.repair.run(scaleExp, keepCRs=False)
        if self.config.crGrow > 0:
            crMask = inputExp.getMaskedImage().getMask().getPlaneBitMask("CR")
            spans = afwGeom.SpanSet.fromMask(inputExp.mask, crMask)
            spans = spans.dilated(self.config.crGrow)
            spans.setMask(inputExp.mask, crMask)
 
        # Undo scaling; as above, DM-23680.
        if np.isfinite(scale) and scale != 0.0:
            mi *= scale
 
        return pipeBase.Struct(
            outputExp=inputExp,
        )

Member Data Documentation

ConfigClass

lsst.cp.pipe.cpDarkTask.CpDarkTask.ConfigClass = CpDarkTaskConfig

static

Definition at line 80 of file cpDarkTask.py.

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

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-0.6.0/Linux64/cp_pipe/22.0.1-18-gb17765a+2264247a6b/python/lsst/cp/pipe/cpDarkTask.py