split_skeleton_regionsplit_skeleton_regionSplitSkeletonRegionSplitSkeletonRegionsplit_skeleton_region (算子)

名称

split_skeleton_regionsplit_skeleton_regionSplitSkeletonRegionSplitSkeletonRegionsplit_skeleton_region — 拆分由一个像素宽的非分支区域表示的线。

签名

split_skeleton_region(SkeletonRegion : RegionLines : MaxDistance : )

描述

split_skeleton_regionsplit_skeleton_regionSplitSkeletonRegionSplitSkeletonRegionSplitSkeletonRegionsplit_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 MaxDistanceMaxDistanceMaxDistanceMaxDistancemaxDistancemax_distance (split & merge algorithm). However, not the approximating lines are returned, but rather the original lines split into several output regions.

注意

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

执行信息

多线程类型：可重入（与非独占算子并行运行）。
多线程作用域：全局（可从任何线程调用）。
在元组级别上自动并行化。

参数

SkeletonRegionSkeletonRegionSkeletonRegionSkeletonRegionskeletonRegionskeleton_region (输入对象) region(-array) → object

Input lines (represented by 1 pixel wide, non-branching regions).

RegionLinesRegionLinesRegionLinesRegionLinesregionLinesregion_lines (输出对象) region-array → object

Split lines.

MaxDistanceMaxDistanceMaxDistanceMaxDistancemaxDistancemax_distance (输入控制) integer → (integer)

Maximum distance of the line points to the line segment connecting both end points.

默认值： 3

建议值： 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

值范围： 1 ≤ MaxDistance MaxDistance MaxDistance MaxDistance maxDistance max_distance ≤ 500 (lin)

最小增量： 1

建议增量： 1

示例（HDevelop）

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)

示例（C）

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);

示例（HDevelop）

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)

示例（HDevelop）

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)

示例（HDevelop）

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)

结果

split_skeleton_regionsplit_skeleton_regionSplitSkeletonRegionSplitSkeletonRegionSplitSkeletonRegionsplit_skeleton_region 始终返回值 2 ( H_MSG_TRUE )。当输入为空（未指定区域）时则可设置行为通过 set_system('no_object_result',<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>)，当输入区域为空时则设置行为通过 set_system('empty_region_result',<Result>)set_system("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)set_system("empty_region_result",<Result>)，以及当结果区域为空时则设置行为通过 set_system('store_empty_region',<'true'/'false'>)set_system("store_empty_region",<"true"/"false">)SetSystem("store_empty_region",<"true"/"false">)SetSystem("store_empty_region",<"true"/"false">)SetSystem("store_empty_region",<"true"/"false">)set_system("store_empty_region",<"true"/"false">)。如有必要，则抛出异常。

可能的前趋

connectionconnectionConnectionConnectionConnectionconnection, select_shapeselect_shapeSelectShapeSelectShapeSelectShapeselect_shape, skeletonskeletonSkeletonSkeletonSkeletonskeleton, junctions_skeletonjunctions_skeletonJunctionsSkeletonJunctionsSkeletonJunctionsSkeletonjunctions_skeleton, differencedifferenceDifferenceDifferenceDifferencedifference

可能的后继

count_objcount_objCountObjCountObjCountObjcount_obj, select_shapeselect_shapeSelectShapeSelectShapeSelectShapeselect_shape, select_objselect_objSelectObjSelectObjSelectObjselect_obj, area_centerarea_centerAreaCenterAreaCenterAreaCenterarea_center, elliptic_axiselliptic_axisEllipticAxisEllipticAxisEllipticAxiselliptic_axis, smallest_rectangle2smallest_rectangle2SmallestRectangle2SmallestRectangle2SmallestRectangle2smallest_rectangle2, get_region_polygonget_region_polygonGetRegionPolygonGetRegionPolygonGetRegionPolygonget_region_polygon, get_region_contourget_region_contourGetRegionContourGetRegionContourGetRegionContourget_region_contour

另见

split_skeleton_linessplit_skeleton_linesSplitSkeletonLinesSplitSkeletonLinesSplitSkeletonLinessplit_skeleton_lines, get_region_polygonget_region_polygonGetRegionPolygonGetRegionPolygonGetRegionPolygonget_region_polygon, gen_polygons_xldgen_polygons_xldGenPolygonsXldGenPolygonsXldGenPolygonsXldgen_polygons_xld

模块

基础

算子