Create a Footprint from a set of Images
Parameters
----------
images : `lsst.afw.image.MultibandImage` or list of `lsst.afw.image.Image`, array
Images to extract the footprint from
thresh : `float`
All pixels above `thresh` will be included in the footprint
xy0 : `lsst.geom.Point2I`
Location of the minimum value of the images bounding box
(if images is an array, otherwise the image bounding box is used).
Returns
-------
spans : `lsst.afw.geom.SpanSet`
Union of all spans in the images above the threshold
imageBBox : `lsst.afw.detection.Box2I`
Bounding box for the input images.
Definition at line 35 of file multiband.py.