ctapipe is not stable yet, so expect large and rapid changes to structure and functionality as we explore various design choices before the 1.0 release.

largest_island#

ctapipe.image.largest_island(island_labels)[source]#

Find the biggest island and filter it from the image.

This function takes a list of islands in an image and isolates the largest one for later parametrization.

Parameters:
island_labelsarray

Flattened array containing a list of labelled islands from a cleaned image. Second value returned by the function ‘number_of_islands’.

Returns:
maskarray

A boolean mask created from the input labels and filtered for the largest island. If no islands survived the cleaning the array is all False.