largest_island

ctapipe.image.largest_island(island_labels)

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.