lsst.cp.pipe.cpFlatNormTask.CpFlatMeasureTask Class Reference

Inheritance diagram for lsst.cp.pipe.cpFlatNormTask.CpFlatMeasureTask:

Public Member Functions
def	run (self, inputExp)

Static Public Attributes
	ConfigClass = CpFlatMeasureTaskConfig

Detailed Description

Apply extra masking and measure image statistics.

Definition at line 78 of file cpFlatNormTask.py.

Member Function Documentation

run()

def lsst.cp.pipe.cpFlatNormTask.CpFlatMeasureTask.run	(		self,
			inputExp
	)

Mask ISR processed FLAT exposures to ensure consistent statistics.

Parameters
----------
inputExp : `lsst.afw.image.Exposure`
    Post-ISR processed exposure to measure.

Returns
-------
outputStats : `lsst.daf.base.PropertyList`
    List containing the statistics.

Definition at line 85 of file cpFlatNormTask.py.

    def run(self, inputExp):
        """Mask ISR processed FLAT exposures to ensure consistent statistics.
 
        Parameters
        ----------
        inputExp : `lsst.afw.image.Exposure`
            Post-ISR processed exposure to measure.
 
        Returns
        -------
        outputStats : `lsst.daf.base.PropertyList`
            List containing the statistics.
        """
        if self.config.doVignette:
            VignetteExposure(inputExp, doUpdateMask=True, doSetValue=False, log=self.log)
        mask = inputExp.getMask()
        maskVal = mask.getPlaneBitMask(self.config.maskNameList)
        statsControl = afwMath.StatisticsControl(self.config.numSigmaClip,
                                                 self.config.clipMaxIter,
                                                 maskVal)
        statsControl.setAndMask(maskVal)
 
        outputStats = dafBase.PropertyList()
 
        # Detector level:
        stats = afwMath.makeStatistics(inputExp.getMaskedImage(),
                                       afwMath.MEANCLIP | afwMath.STDEVCLIP | afwMath.NPOINT,
                                       statsControl)
        outputStats['DETECTOR_MEDIAN'] = stats.getValue(afwMath.MEANCLIP)
        outputStats['DETECTOR_SIGMA'] = stats.getValue(afwMath.STDEVCLIP)
        outputStats['DETECTOR_N'] = stats.getValue(afwMath.NPOINT)
        self.log.info("Stats: median=%f sigma=%f n=%d",
                      outputStats['DETECTOR_MEDIAN'],
                      outputStats['DETECTOR_SIGMA'],
                      outputStats['DETECTOR_N'])
 
        # AMP LEVEL:
        for ampIdx, amp in enumerate(inputExp.getDetector()):
            ampName = amp.getName()
            ampExp = inputExp.Factory(inputExp, amp.getBBox())
            stats = afwMath.makeStatistics(ampExp.getMaskedImage(),
                                           afwMath.MEANCLIP | afwMath.STDEVCLIP | afwMath.NPOINT,
                                           statsControl)
            outputStats[f'AMP_NAME_{ampIdx}'] = ampName
            outputStats[f'AMP_MEDIAN_{ampIdx}'] = stats.getValue(afwMath.MEANCLIP)
            outputStats[f'AMP_SIGMA_{ampIdx}'] = stats.getValue(afwMath.STDEVCLIP)
            outputStats[f'AMP_N_{ampIdx}'] = stats.getValue(afwMath.NPOINT)
 
        return pipeBase.Struct(
            outputStats=outputStats
        )
 
 

Member Data Documentation

ConfigClass

lsst.cp.pipe.cpFlatNormTask.CpFlatMeasureTask.ConfigClass = CpFlatMeasureTaskConfig

static

Definition at line 82 of file cpFlatNormTask.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/cpFlatNormTask.py