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lsst.pipe.tasks gcae151f86b+6b56d0ebb3
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Public Member Functions | |
| def | __init__ (self, *args, **kwargs) |
| def | run (self, exposure, dataRef=None) |
| def | computeImageScaler (self, exposure, dataRef=None) |
| def | getPhotoCalib (self) |
| def | scaleFromPhotoCalib (self, calib) |
| def | scaleFromFluxMag0 (self, fluxMag0) |
Static Public Attributes | |
| ConfigClass = ScaleZeroPointConfig | |
Compute scale factor to scale exposures to a desired photometric zero point. This simple version assumes that the zero point is spatially invariant.
Definition at line 155 of file scaleZeroPoint.py.
| def lsst.pipe.tasks.scaleZeroPoint.ScaleZeroPointTask.__init__ | ( | self, | |
| * | args, | ||
| ** | kwargs | ||
| ) |
Reimplemented in lsst.pipe.tasks.scaleZeroPoint.SpatialScaleZeroPointTask.
Definition at line 164 of file scaleZeroPoint.py.
| def lsst.pipe.tasks.scaleZeroPoint.ScaleZeroPointTask.computeImageScaler | ( | self, | |
| exposure, | |||
dataRef = None |
|||
| ) |
Compute image scaling object for a given exposure.
Parameters
----------
exposure : `lsst.afw.image.Exposure`
Exposure for which scaling is desired.
dataRef : `Unknown`, optional
Data reference for exposure.
Not used, but in API so that users can switch between spatially variant
and invariant tasks.
Reimplemented in lsst.pipe.tasks.scaleZeroPoint.SpatialScaleZeroPointTask.
Definition at line 198 of file scaleZeroPoint.py.
| def lsst.pipe.tasks.scaleZeroPoint.ScaleZeroPointTask.getPhotoCalib | ( | self | ) |
Get desired PhotoCalib.
Returns
-------
calibration : `lsst.afw.image.PhotoCalib`
Calibration with ``fluxMag0`` set appropriately for config.zeroPoint.
Definition at line 213 of file scaleZeroPoint.py.
| def lsst.pipe.tasks.scaleZeroPoint.ScaleZeroPointTask.run | ( | self, | |
| exposure, | |||
dataRef = None |
|||
| ) |
Scale the specified exposure to the desired photometric zeropoint.
Parameters
----------
exposure : `lsst.afw.image.Exposure`
Exposure to scale; masked image is scaled in place.
dataRef : `Unknown`
Data reference for exposure.
Not used, but in API so that users can switch between spatially variant
and invariant tasks.
Returns
-------
result : `lsst.pipe.base.Struct`
Results as a struct with attributes:
``imageScaler``
The image scaling object used to scale exposure.
Reimplemented in lsst.pipe.tasks.scaleZeroPoint.SpatialScaleZeroPointTask.
Definition at line 171 of file scaleZeroPoint.py.
| def lsst.pipe.tasks.scaleZeroPoint.ScaleZeroPointTask.scaleFromFluxMag0 | ( | self, | |
| fluxMag0 | |||
| ) |
Compute the scale for the specified fluxMag0.
This is a wrapper around scaleFromPhotoCalib, which see for more information.
Parameters
----------
fluxMag0 : `float`
Flux at magnitude zero.
Returns
-------
result : `lsst.pipe.base.Struct`
Results as a struct with attributes:
`scale`
Scale, such that if pixelCalib describes the photometric zeropoint
of a pixel then the following scales that pixel to the photometric
zeropoint specified by config.zeroPoint:
``scale = computeScale(pixelCalib)``
``pixel *= scale``
Definition at line 247 of file scaleZeroPoint.py.
| def lsst.pipe.tasks.scaleZeroPoint.ScaleZeroPointTask.scaleFromPhotoCalib | ( | self, | |
| calib | |||
| ) |
Compute the scale for the specified PhotoCalib.
Returns
-------
result : `lsst.pipe.base.Struct`
Results as a struct with attributes:
`scale`
Scale, such that if pixelCalib describes the photometric
zeropoint of a pixel then the following scales that pixel to
the photometric zeropoint specified by config.zeroPoint:
``scale = computeScale(pixelCalib) pixel *= scale``
Notes
-----
Returns a struct to leave room for scaleErr in a future implementation.
Definition at line 223 of file scaleZeroPoint.py.
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static |
Definition at line 161 of file scaleZeroPoint.py.