Add the result of a hit-or-miss operation to a region.
::thickening performs a thickening of the input regions using morphological operations. The operator first applies a hit-or-miss-transformation to Region (cf.::hit_or_miss), and then adds the detected points to the input region. The parameter Iterations determines the number of iterations performed.
For the choice of the structuring elements StructElement1 and StructElement2, as well as for Row and Column, the same restrictions described under ::hit_or_miss apply.
The structuring elements (StructElement1 and StructElement2) can be generated by calling ::golay_elements, for example.
If the reference point is contained in StructElement1 the input region remains unchanged.
|
Region (input_object) |
region(-array) -> Hobject: HRegion(Array) |
| Regions to be processed. | |
|
StructElement1 (input_object) |
region -> Hobject: HRegion |
| Structuring element for the foreground. | |
|
StructElement2 (input_object) |
region -> Hobject: HRegion |
| Structuring element for the background. | |
|
RegionThick (output_object) |
region(-array) -> Hobject * : HRegion(Array) |
| Result of the thickening operator. | |
|
Row (input_control) |
point.y -> HTuple.long |
| Row coordinate of the reference point. | |
| Default value: 16 | |
| Suggested values: 0, 2, 4, 8, 16, 32, 128 | |
| Typical range of values: 0 <= Row <= 511 (lin) | |
| Minimum increment: 1 | |
|
Recommended increment: 1 | |
|
Column (input_control) |
point.x -> HTuple.long |
| Column coordinate of the reference point. | |
| Default value: 16 | |
| Suggested values: 0, 2, 4, 8, 16, 32, 128 | |
| Typical range of values: 0 <= Column <= 511 (lin) | |
| Minimum increment: 1 | |
|
Recommended increment: 1 | |
|
Iterations (input_control) |
integer -> HTuple.long |
| Number of iterations. | |
| Default value: 1 | |
| Suggested values: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 17, 20, 30, 40, 50, 70, 100, 200, 400 | |
| Typical range of values: 1 <= Iterations | |
| Minimum increment: 1 | |
|
Recommended increment: 1 | |
Let F be the area of an input region, F1 the area of the structuring element 1, and F2 the area of the structuring element 2. Then the runtime complexity for one object is:
O(Iterations * sqrt(F) * (sqrt(F1) + sqrt(F2))) .
::thickening returns 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.
::golay_elements, ::threshold, ::regiongrowing, ::connection, ::union1, ::watersheds, ::class_ndim_norm, ::gen_circle, ::gen_ellipse, ::gen_rectangle1, ::gen_rectangle2, ::draw_region, ::gen_region_points, ::gen_struct_elements, ::gen_region_polygon_filled
::reduce_domain, ::select_shape, ::area_center, ::connection
::thickening_golay, ::thickening_seq
Morphology
