MosaicIndividualFieldsStep

This step will produce mosaics for each individual tile in a mosaic. This can be useful for e.g. large mosaics, where you may want to test something on a portion of the image before running on the full mosaic.

API

class pjpipe.MosaicIndividualFieldsStep(target, band, in_dir, out_dir, procs, crf_ext='crf_tweakback', resample_parameters=None, parallel=True, overwrite=False)

Mosaic each individual field in an observation set

N.B. This should be run on _crf_tweakback files, so this step assumes you’ve already run level 3 and any astrometric alignment.

Parameters:

• target – Target to consider

• band – Band to consider

• in_dir – Input directory for the crf files

• out_dir – Where to save the mosaicked files to

• procs – Number of processes to run in parallel

• crf_ext – Extension for files to mosaic. Defaults to crf_tweakback

• resample_parameters – Parameters to pass to the JWST resample step

• overwrite – Whether to overwrite or not. Defaults to False

do_step()

Run mosaicking individual fields

parallel_mosaic_fields(visit)

Parallellise mosaicking

Parameters:

visit – Visit to produce mosaic for

run_step(individual_visits, procs=1)

Wrap parallelism around mosaicking

Parameters:

• individual_visits – List of individual visits

• procs – Number of parallel processes to run. Defaults to 1