lsst.pipe.drivers g96f01af41f+7d47adfb0c
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Public Member Functions | |
def | applyOverrides (cls, config) |
def | __init__ (self, *args, **kwargs) |
def | processResult (self, exposure) |
def | scale (self, ccdIdLists, data) |
Static Public Attributes | |
ConfigClass = FlatConfig | |
string | calibName = "flat" |
Flat construction The principal change from the base class involves gathering the background values from each image and using them to determine the scalings for the final combination.
Definition at line 1018 of file constructCalibs.py.
def lsst.pipe.drivers.constructCalibs.FlatTask.__init__ | ( | self, | |
* | args, | ||
** | kwargs | ||
) |
Constructor
Reimplemented from lsst.pipe.drivers.constructCalibs.CalibTask.
Definition at line 1035 of file constructCalibs.py.
def lsst.pipe.drivers.constructCalibs.FlatTask.applyOverrides | ( | cls, | |
config | |||
) |
Overrides for flat construction
Definition at line 1030 of file constructCalibs.py.
def lsst.pipe.drivers.constructCalibs.FlatTask.processResult | ( | self, | |
exposure | |||
) |
Extract processing results from a processed exposure This method generates what is gathered by the master node. This can be a background measurement or similar for scaling flat-fields. It must be picklable! Only slave nodes execute this method.
Reimplemented from lsst.pipe.drivers.constructCalibs.CalibTask.
Definition at line 1039 of file constructCalibs.py.
def lsst.pipe.drivers.constructCalibs.FlatTask.scale | ( | self, | |
ccdIdLists, | |||
data | |||
) |
Determine the scalings for the final combination We have a matrix B_ij = C_i E_j, where C_i is the relative scaling of one CCD to all the others in an exposure, and E_j is the scaling of the exposure. We convert everything to logarithms so we can work with a linear system. We determine the C_i and E_j from B_ij by iteration, under the additional constraint that the average CCD scale is unity. This algorithm comes from Eugene Magnier and Pan-STARRS.
Reimplemented from lsst.pipe.drivers.constructCalibs.CalibTask.
Definition at line 1042 of file constructCalibs.py.
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static |
Definition at line 1027 of file constructCalibs.py.
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static |
Definition at line 1025 of file constructCalibs.py.