junctions_skeletonjunctions_skeletonJunctionsSkeletonJunctionsSkeletonjunctions_skeleton (算子名称)
名称
junctions_skeletonjunctions_skeletonJunctionsSkeletonJunctionsSkeletonjunctions_skeleton — Find junctions and end points in a skeleton.
参数签名
def junctions_skeleton(区域: HObject) -> Tuple[HObject, HObject]
描述
junctions_skeletonjunctions_skeletonJunctionsSkeletonJunctionsSkeletonJunctionsSkeletonjunctions_skeleton detects junctions and end points in a skeleton (see
skeletonskeletonSkeletonSkeletonSkeletonskeleton). The junctions in the input region
区域区域区域区域区域区域 are output as a region in JuncPointsJuncPointsJuncPointsJuncPointsjuncPointsjunc_points,
while the end points are output as a region in EndPointsEndPointsEndPointsEndPointsendPointsend_points.
To obtain reasonable results with junctions_skeletonjunctions_skeletonJunctionsSkeletonJunctionsSkeletonJunctionsSkeletonjunctions_skeleton the input
region 区域区域区域区域区域区域 must not contain lines which are more than one
pixel wide. Regions obtained by skeletonskeletonSkeletonSkeletonSkeletonskeleton meet this condition,
while regions obtained by morph_skeletonmorph_skeletonMorphSkeletonMorphSkeletonMorphSkeletonmorph_skeleton do not meet this
condition in general.
运行信息
- 多线程类型:可重入(与非独占操作符并行运行)。
- 多线程作用域:全局(可以从任何线程调用)。
- 在元组级别自动并行化。
参数表
区域区域区域区域区域区域 (input_object) region(-array) → objectHRegionHObjectHRegionHobject
Input skeletons.
EndPointsEndPointsEndPointsEndPointsendPointsend_points (output_object) region(-array) → objectHRegionHObjectHRegionHobject *
Extracted end points.
Number of elements:
EndPoints == Region
JuncPointsJuncPointsJuncPointsJuncPointsjuncPointsjunc_points (output_object) region(-array) → objectHRegionHObjectHRegionHobject *
Extracted junctions.
Number of elements:
JuncPoints == Region
例程 (HDevelop)
* non-connected branches of a skeleton
skeleton(Region,Skeleton)
junctions_skeleton(Skeleton,EPoints,JPoints)
difference(Skeleton,JPoints,Rows)
set_system('neighborhood',4)
connection(Rows,Parts)
例程 (C)
/* non-connected branches of a skeleton */
skeleton(Region,&Skeleton);
junctions_skeleton(Skeleton,&EPoints,&JPoints);
difference(Skeleton,JPoints,&Rows);
connection(Rows,&Parts);
例程 (HDevelop)
* non-connected branches of a skeleton
skeleton(Region,Skeleton)
junctions_skeleton(Skeleton,EPoints,JPoints)
difference(Skeleton,JPoints,Rows)
set_system('neighborhood',4)
connection(Rows,Parts)
例程 (HDevelop)
* non-connected branches of a skeleton
skeleton(Region,Skeleton)
junctions_skeleton(Skeleton,EPoints,JPoints)
difference(Skeleton,JPoints,Rows)
set_system('neighborhood',4)
connection(Rows,Parts)
例程 (HDevelop)
* non-connected branches of a skeleton
skeleton(Region,Skeleton)
junctions_skeleton(Skeleton,EPoints,JPoints)
difference(Skeleton,JPoints,Rows)
set_system('neighborhood',4)
connection(Rows,Parts)
Complexity
Let F be the area of the input region. Then the runtime
complexity is O(F).
结果
junctions_skeletonjunctions_skeletonJunctionsSkeletonJunctionsSkeletonJunctionsSkeletonjunctions_skeleton always 返回值 2 (
H_MSG_TRUE)
. The behavior in
case of empty input (no regions given) can be set via
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>),
the behavior in case of an empty input region via
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>),
and the behavior in case of an empty result region via
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，将引发异常。
可能的前置算子
skeletonskeletonSkeletonSkeletonSkeletonskeleton
可能的后置算子
area_centerarea_centerAreaCenterAreaCenterAreaCenterarea_center,
connectionconnectionConnectionConnectionConnectionconnection,
get_region_pointsget_region_pointsGetRegionPointsGetRegionPointsGetRegionPointsget_region_points,
differencedifferenceDifferenceDifferenceDifferencedifference
参考其它
pruningpruningPruningPruningPruningpruning,
split_skeleton_regionsplit_skeleton_regionSplitSkeletonRegionSplitSkeletonRegionSplitSkeletonRegionsplit_skeleton_region
模块
Foundation