Split lines represented by one pixel wide, non-branching regions.

::split_skeleton_region splits lines represented by one pixel wide, non-branching regions into shorter lines based on their curvature. A line is split if the maximum distance of a point on the line to the line segment connecting its end points is larger than MaxDistance (split merge algorithm). However, not the approximating lines are returned, but rather the original lines split into several output regions.

The input regions must represent non-branching lines, that is single branches of the skeleton.

read_image(&Image,"fabrik");
edges_image (Image, &ImaAmp, &ImaDir, "lanser2", 0.5, "nms", 8, 16);
threshold (ImaAmp, &RawEdges, 8, 255);
skeleton (RawEdges, &Skeleton);
junctions_skeleton (Skeleton, &EndPoints, &JuncPoints);
difference (Skeleton, JuncPoints, &SkelWithoutJunc);
connection (SkelWithoutJunc, &SingleBranches);
select_shape (SingleBranches, &SelectedBranches, "area", "and", 16, 99999);
split_skeleton_region (SelectedBranches, Lines, 3);

::split_skeleton_region always returns the value H_MSG_TRUE. The behavior in case of empty input (no regions given) can be set via ::set_system('no_object_result',<Result>), the behavior in case of an empty input region via ::set_system('empty_region_result',<Result>), and the behavior in case of an empty result region via ::set_system('store_empty_region',<true/false>). If necessary, an exception handling is raised.

::connection, ::select_shape, ::skeleton, ::junctions_skeleton, ::difference

::count_obj, ::select_shape, ::select_obj, ::area_center, ::elliptic_axis, ::smallest_rectangle2, ::get_region_polygon, ::get_region_contour

::split_skeleton_lines, ::get_region_polygon, ::gen_polygons_xld

Region processing