ImageReducerConfig

class lsst.ip.diffim.ImageReducerConfig(*args, **kw)

Bases: Config

Configuration parameters for the ImageReducer

Attributes Summary

badMaskPlanes	Mask planes to set for invalid pixels (List, default ('INVALID_MAPREDUCE', 'BAD', 'NO_DATA'))
reduceOperation	Operation to use for reducing subimages into new image.

Attributes Documentation

badMaskPlanes

Mask planes to set for invalid pixels (List, default ('INVALID_MAPREDUCE', 'BAD', 'NO_DATA'))

reduceOperation

Operation to use for reducing subimages into new image. (str, default 'average')

Allowed values:

'none'

simply return a list of values and don’t re-map results into

a new image (noop operation)

'copy'

copy pixels directly from subimage into correct location in

new exposure (potentially non-deterministic for overlaps)

'sum'

add pixels from overlaps (probably never wanted; used for testing)

into correct location in new exposure

'average'

same as copy, but also average pixels from overlapped regions

(NaNs ignored)

'coaddPsf'

Instead of constructing an Exposure, take a list of returned

PSFs and use CoaddPsf to construct a single PSF that covers the entire input exposure

'None'

Field is optional