image_diff_stats

lsst.analysis.ap.image_diff_stats(butler, visit, detector, dataset_name='difference_image')

Summary statistics on a single difference image.

Parameters

butlerlsst.daf.butler.Butler

Butler initialized with the relevant collections.

visit, detectorint

Data id selecting the exposure to load.

dataset_namestr, optional

Butler dataset type name to load. Defaults to "difference_image".

Returns

statsdict

{"visit", "detector", "median", "mad", "stddev", "kurtosis"} plus a frac_<PLANE> entry per mask plane on the exposure.