Compute the union of bottom_hat and top_hat.
morph_hat computes the union of the regions that are removed by a opening operation with the regions that are added by a closing operation. Hence this is the union of the results of top_hat and bottom_hat. The position of StructElement does not influence the result.
Structuring elements (StructElement) can be generated with operators such as circle, rectangle1, rectangle2, ellipse, draw_region, store_polygon, store_coord, etc.
The individual regions are processed separately.
Region (input_object) |
region(-array) -> object |
Regions to be processed. |
StructElement (input_object) |
region -> object |
Structuring element (position-invariant). |
RegionTopHat (output_object) |
region(-array) -> object |
Union of top hat and bottom hat. |
#include#include "HCPP.H" main() { cout << "Reproduction of 'dilation_circle ()" << endl; cout << "First = original image " << endl; cout << "Red = after segmentation " << endl; cout << "Blue = after erosion " << endl; HByteImage img("affe"); HWindow w; HRegion circ = HRegion::Circle (10, 10, 1.5); HRegionArray regs = (img >= 128).Connection(); HRegionArray tophat = regs.TopHat (circ); HRegionArray bothat = regs.BottomHat (circ); HRegionArray unionX = tophat.Union2 (bothat); img.Display (w); w.Click (); w.SetColor ("red"); regs.Display (w); w.Click (); w.SetColor ("blue"); tophat.Display (w); w.Click (); w.SetColor ("green"); bothat.Display (w); w.Click (); w.SetColor ("white"); unionX.Display (w); w.Click (); return(0); }
morph_hat 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.
threshold__, regiongrowing__, connection, union1, watersheds, class_ndim1__, circle, ellipse, rectangle1, rectangle2, draw_region, store_coord, struct_elements, store_filled_polygon
reduce_domain, select_shape, area_center, connection