hit_or_miss_seq ( Region : RegionHitMiss : GolayElement : )

Hit-or-miss operation for regions using the Golay alphabet (sequential).

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.


Parameters

Region (input_object)
region(-array) -> object
Regions to be processed.

RegionHitMiss (output_object)
region(-array) -> object
Result if the hit-or-miss operation.

GolayElement (input_control)
string -> string
Structuring element from the Golay alphabet.
Default value: 'h'
List of values: 'l', 'm', 'd', 'c', 'e', 'i', 'f', 'f2', 'h', 'k'


Complexity

Let F be the area of an input region, and R be the number of rotations. Then the runtime for one region is:

      O(R * 6 * sqrt(F)) .


Result

hit_or_miss_seq returns TRUE if all parameters are correct. The behavior in case of empty or no input region can be set via:

  a) no region:    set_system(::'no_object_result',<RegionResult>:)
  b) empty region: set_system(::'empty_region_result',<RegionResult>:)
Otherwise, an exception is raised.


Possible Predecessors

threshold__, regiongrowing__, connection, union1, watersheds, class_ndim1__


Possible Successors

reduce_domain, select_shape, area_center, connection


Alternatives

hit_or_miss_golay, hit_or_miss


See also

thinning_seq, thickening_seq



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