fitting — Perform a closing after an opening with multiple structuring elements.
fitting performs an opening and a closing successively on the input regions. The eight structuring elements normally used for this operation can be generated with the operator gen_struct_elements. However, other user-defined structuring elements can also be used. Let R be the input region(s) and let M(i) denote the structuring elements. Furthermore, let P be the result of the opening and Q be the final result. Then the operator can be formalized as follows:
n | | P = | | R o M (opening) \__/ i i=1 n_ / \ Q = | | P * M (closing) | | i i=1
Regions larger than the structuring elements are preserved, while small gaps are closed.
Regions to be processed.
fitting returns 2 (H_MSG_TRUE) if all parameters are correct. The behavior in case of empty or no input region can be set via:
no region: set_system('no_object_result',<RegionResult>)
empty region: set_system('empty_region_result',<RegionResult>)
Otherwise, an exception is raised.
reduce_domain, select_shape, area_center, connection
opening, closing, connection, select_shape