darsia.random_patches#

random_patches(mask, width, num_patches)[source]#

Utility to extract random patches from a mask.

Parameters:

masknp.ndarray: Binary mask to extract patches from.
widthint: Width of the patches.
num_patchesint: Number of patches to extract.

Returns:

list of tuples: Patches as slices.
None: If the mask is too small to extract patches.
NOTE: The function utilizes randomness. For reproducibility, the seed is fixed.