lsst.cp.pipe

Using lsst.cp.pipe

• Constructing calibrations

Contributing

lsst.cp.pipe is developed at https://github.com/lsst/cp_pipe. You can find Jira issues for this module under the cp_pipe component.

Task reference

Pipeline tasks

BrighterFatterKernelSolveTask

Measure appropriate Brighter-Fatter Kernel from the PTC dataset.

CalibCombineByFilterTask

Task to combine calib exposures.

CalibCombineTask

Task to combine calib exposures.

CpDarkTask

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

CpFlatMeasureTask

Apply extra masking and measure image statistics.

CpFlatNormalizationTask

Rescale merged flat frames to remove unequal screen illumination.

CpFringeTask

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

CpSkyCombineTask

Merge per-exposure measurements into a detector level calibration.

CpSkyImageTask

Mask the detections on the postISRCCD.

CpSkyScaleMeasureTask

Measure per-exposure scale factors and merge focal plane backgrounds.

CpSkySubtractBackgroundTask

Subtract per-exposure background from individual detector masked images.

CrosstalkExtractTask

Task to measure pixel ratios to find crosstalk.

CrosstalkSolveTask

Task to solve crosstalk from pixel ratios.

LinearitySolveTask

Fit the linearity from the PTC dataset.

MeasureDefectsTask

Measure the defects from one exposure.

MergeDefectsTask

Merge the defects from multiple exposures.

PhotonTransferCurveExtractTask

Task to measure covariances from flat fields.

PhotonTransferCurveSolveTask

Task to fit the PTC from flat covariances.

Command-line tasks

FindDefectsTask

Task for finding defects in sensors.

MeasureCrosstalkTask

Measure intra-detector crosstalk.

MeasureLinearityTask

Stand alone Gen2 linearity measurement.

Tasks

CalibStatsTask

Measure statistics on the background

Script reference

• plotPhotonTransferCurve.py

Python API reference

lsst.cp.pipe Package

Classes

BrighterFatterKernelSolveConfig
BrighterFatterKernelSolveTask(*, config, …)	Measure appropriate Brighter-Fatter Kernel from the PTC dataset.
CalibCombineByFilterConfig
CalibCombineByFilterConnections(*[, config])
CalibCombineByFilterTask(**kwargs)	Task to combine calib exposures.
CalibCombineConfig	Configuration for combining calib exposures.
CalibCombineConnections(*[, config])
CalibCombineTask(**kwargs)	Task to combine calib exposures.
CalibStatsConfig	Parameters controlling the measurement of background statistics.
CalibStatsTask(config, name, parentTask, …)	Measure statistics on the background
CpCtiSolveConfig	Configuration for the CTI combination.
CpCtiSolveConnections(*, config)
CpCtiSolveTask(**kwargs)	Combine CTI measurements to a final calibration.
CpSkyCombineConfig
CpSkyCombineTask(**kwargs)	Merge per-exposure measurements into a detector level calibration.
CpSkyImageConfig
CpSkyImageTask(**kwargs)	Mask the detections on the postISRCCD.
CpSkyScaleMeasureConfig
CpSkyScaleMeasureTask(*, config, log, …)	Measure per-exposure scale factors and merge focal plane backgrounds.
CpSkySubtractBackgroundConfig
CpSkySubtractBackgroundTask(**kwargs)	Subtract per-exposure background from individual detector masked images.
CrosstalkExtractConfig	Configuration for the measurement of pixel ratios.
CrosstalkExtractTask(*, config, log, …)	Task to measure pixel ratios to find crosstalk.
CrosstalkSolveConfig	Configuration for the solving of crosstalk from pixel ratios.
CrosstalkSolveTask(*, config, log, …)	Task to solve crosstalk from pixel ratios.
FindDefectsTask(**kwargs)	Task for finding defects in sensors.
FindDefectsTaskConfig
FloatingOutputAmplifier(gain, scale, decay_time)	Object representing the readout amplifier of a single channel.
LinearitySolveConfig	Configuration for solving the linearity from PTC dataset.
LinearitySolveTask(*, config, log, …)	Fit the linearity from the PTC dataset.
MeasureCrosstalkConfig
MeasureCrosstalkTask(**kwargs)	Measure intra-detector crosstalk.
MeasureDefectsTask(*, config, log, …)	Measure the defects from one exposure.
MeasureDefectsTaskConfig	Configuration for measuring defects from a list of exposures
MeasureLinearityTask(**kwargs)	Stand alone Gen2 linearity measurement.
MergeDefectsTask(*, config, log, …)	Merge the defects from multiple exposures.
MergeDefectsTaskConfig	Configuration for merging single exposure defects.
OverscanModel	Base class for handling model/data fit comparisons.
PhotodiodeCorrectionConfig	Configuration for calculating the photodiode corrections.
PhotodiodeCorrectionTask(*, config, log, …)	Calculate the photodiode corrections.
PhotonTransferCurveExtractConfig	Configuration for the measurement of covariances from flats.
PhotonTransferCurveExtractTask(*, config, …)	Task to measure covariances from flat fields.
PhotonTransferCurveSolveConfig	Configuration for fitting measured covariances.
PhotonTransferCurveSolveTask(*, config, log, …)	Task to fit the PTC from flat covariances.
PlotPhotonTransferCurveTask(datasetFilename)	A class to plot the dataset from MeasurePhotonTransferCurveTask.
SegmentSimulator(imarr, prescan_width, …)	Controls the creation of simulated segment images.
SimpleModel	Simple analytic overscan model.
SimulatedModel	Simulated overscan model.

lsst.cp.pipe.cpFlatNormTask Module

Classes

CpFlatMeasureTask(*, config, log, …)	Apply extra masking and measure image statistics.
CpFlatMeasureTaskConfig
CpFlatNormalizationTask(*, config, log, …)	Rescale merged flat frames to remove unequal screen illumination.
CpFlatNormalizationTaskConfig

lsst.cp.pipe.cpDarkTask Module

Classes

CpDarkTask(**kwargs)	Combine pre-processed dark frames into a proposed master calibration.
CpDarkTaskConfig

lsst.cp.pipe.cpFringeTask Module

Classes

CpFringeTask(**kwargs)	Combine pre-processed fringe frames into a proposed master calibration.
CpFringeTaskConfig

lsst.cp.pipe.utils Module

Functions

countMaskedPixels(maskedIm, maskPlane)	Count the number of pixels in a given mask plane.
ddict2dict(d)	Convert nested default dictionaries to regular dictionaries.

Classes

CovFastFourierTransform(diff, w, fftShape, …)

A class to compute (via FFT) the nearby pixels correlation function.