scipy.ndimage.morphology.black_tophat(input, size=None, footprint=None, structure=None, output=None, mode='reflect', cval=0.0, origin=0)[source]

Multi-dimensional black tophat filter.

Parameters :

input : array_like


size : tuple of ints

Shape of a flat and full structuring element used for the filter. Optional if footprint or structure is provided.

footprint : array of ints, optional

Positions of non-infinite elements of a flat structuring element used for the black tophat filter.

structure : array of ints, optional

Structuring element used for the filter. structure may be a non-flat structuring element.

output : array, optional

An array used for storing the output of the filter may be provided.

mode : {‘reflect’, ‘constant’, ‘nearest’, ‘mirror’, ‘wrap’}, optional

The mode parameter determines how the array borders are handled, where cval is the value when mode is equal to ‘constant’. Default is ‘reflect’

cval : scalar, optional

Value to fill past edges of input if mode is ‘constant’. Default is 0.0.

origin : scalar, optional

The origin parameter controls the placement of the filter. Default 0

Returns :

black_tophat : ndarray

Result of the filter of input with structure.