Operator Reference
hit_or_miss_seq (Operator)
hit_or_miss_seq — Hit-or-miss operation for regions using the Golay alphabet (sequential).
Warning
hit_or_miss_seq is obsolete and is only provided for
reasons of backward compatibility.
Signature
hit_or_miss_seq(Region : RegionHitMiss : GolayElement : )
Description
hit_or_miss_golay performs the
hit-or-miss-transformation for the input regions Region
using all rotations of a structuring element from the Golay
alphabet. The result of the operator is the union of all
intermediate results of the respective rotations. The following
structuring elements are available:
'l', 'm', 'd', 'c', 'e', 'i', 'f', 'f2', 'h', 'k'.
The Golay elements, together with all possible rotations, are
described with the operator golay_elements.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on tuple level.
Parameters
Region (input_object) region(-array) → object
Regions to be processed.
RegionHitMiss (output_object) region(-array) → object
Result of the hit-or-miss operation.
GolayElement (input_control) string → (string)
Structuring element from the Golay alphabet.
Default: 'h'
List of values: 'c', 'd', 'e', 'f', 'f2', 'h', 'i', 'k', 'l', 'm'
Complexity
Let F be the area of an input region, and R be the number of rotations. Then the runtime complexity for one region is:
Result
hit_or_miss_seq returns 2 (
H_MSG_TRUE)
if all parameters are
correct. The behavior in case of empty or no input region can be
set via:
-
empty region:
set_system('empty_region_result',<RegionResult>)
Otherwise, an exception is raised.
Possible Predecessors
threshold,
regiongrowing,
connection,
union1,
watersheds,
class_ndim_norm
Possible Successors
reduce_domain,
select_shape,
area_center,
connection
Alternatives
hit_or_miss_golay,
hit_or_miss
See also
Module
Foundation