| Operators |
morph_skiz — Thinning of a region.
morph_skiz is obsolete and is only provided for reasons of backward compatibility.
morph_skiz(Region : RegionSkiz : Iterations1, Iterations2 : )
morph_skiz first performs a sequential thinning (thinning_seq) of the input region with the element 'l' of the Golay alphabet. The number of iterations is determined by the parameter Iterations1. Then a sequential thinning of the resulting region with the element 'e' of the Golay alphabet is carried out. The number of iterations for this step is determined by the parameter Iterations2. The skiz operation serves to compute a kind of skeleton of the input regions, and to prune the branches of the resulting skeleton. If the skiz operation is applied to the complement of the region, the region and the resulting skeleton are separated.
If very large values or 'maximal' are passed for Iterations1 or Iterations2, the processing stops if no more changes occur.
Regions to be thinned.
Result of the skiz operator.
Number of iterations for the sequential thinning with the element 'l' of the Golay alphabet.
Default value: 100
Suggested values: 'maximal', 0, 1, 2, 3, 5, 7, 10, 15, 20, 30, 40, 50, 70, 100, 150, 200, 300, 400
Typical range of values: 0 ≤ Iterations1 (lin)
Minimum increment: 1
Recommended increment: 1
Number of iterations for the sequential thinning with the element 'e' of the Golay alphabet.
Default value: 1
Suggested values: 'maximal', 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 17, 20, 30, 40, 50
Typical range of values: 0 ≤ Iterations2 (lin)
Minimum increment: 1
Recommended increment: 1
Let F be the area of the input region. Then the runtime complexity for one region is
morph_skiz 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.
threshold, regiongrowing, connection, union1, watersheds, class_ndim_norm
pruning, reduce_domain, select_shape, area_center, connection, background_seg, complement
skeleton, thinning_seq, morph_skeleton, interjacent
thinning, hit_or_miss_seq, difference
Foundation
| Operators |