Function File: bwareaopen (bw, lim)

Function File: bwareaopen (bw, lim, conn)

Perform area opening.

Remove objects with less than lim elements from a binary image bw.

Element connectivity conn, to define the size of objects, can be specified with a numeric scalar (number of elements in the neighborhood):

‘4 or 8’

for 2 dimensional matrices;

‘6, 18 or 26’

for 3 dimensional matrices;

or with a binary matrix representing a connectivity array. Defaults to conndef (ndims (bw), "maximal") which is equivalent to conn of 8 and 26 for 2 and 3 dimensional matrices respectively.

See also: bwconncomp, conndef, bwboundaries.

Package: image