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 2 (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.

split_skeleton_region is reentrant and automatically parallelized (on tuple level).

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

Foundation