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.
|
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 value: 'h' | |
| List of values: 'l', 'm', 'd', 'c', 'e', 'i', 'f', 'f2', 'h', 'k' | |
Let F be the area of an input region, and R be the number of rotations. Then the runtime complexity for one region is:
O(R * 6 * sqrt(F)) .
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:
a) no region: set_system('no_object_result',<RegionResult>)
b) empty region: set_system('empty_region_result',<RegionResult>)
Otherwise, an exception is raised.
hit_or_miss_seq is reentrant and automatically parallelized (on tuple level).
threshold, regiongrowing, connection, union1, watersheds, class_ndim_norm
reduce_domain, select_shape, area_center, connection
hit_or_miss_golay, hit_or_miss
Morphology
