filter_isolated_spots

ketos.audio.utils.filter.filter_isolated_spots(img, struct=array([[1, 1, 1], [1, 1, 1], [1, 1, 1]]))

Remove isolated spots from the image.

Args:

imgnumpy array

An array like object representing an image.

structnumpy array

A structuring pattern that defines feature connections. Must be symmetric.

Returns:

filtered_arraynumpy array

An array containing the input image without the isolated spots.

Example:

>>> from ketos.audio.utils.filter import filter_isolated_spots
>>> img = np.array([[0,0,1,1,0,0],
...                 [0,0,0,1,0,0],
...                 [0,1,0,0,0,0],
...                 [0,0,0,0,0,0],
...                 [0,0,0,1,0,0]])
>>> # remove pixels without neighbors
>>> img_fil = filter_isolated_spots(img)
>>> print(img_fil)
[[0 0 1 1 0 0]
 [0 0 0 1 0 0]
 [0 0 0 0 0 0]
 [0 0 0 0 0 0]
 [0 0 0 0 0 0]]