get_region_contourT_get_region_contourGetRegionContourGetRegionContourget_region_contour（算子）
名称
get_region_contourT_get_region_contourGetRegionContourGetRegionContourget_region_contour — 访问对象的轮廓。
签名
def get_region_contour(region: HObject) -> Tuple[Sequence[int], Sequence[int]]
描述
算子 get_region_contourget_region_contourGetRegionContourGetRegionContourGetRegionContourget_region_contour returns the contour of a region.
A contour is a result
of line (RowsRowsRowsRowsrowsrows) and column coordinates (ColumnsColumnsColumnsColumnscolumnscolumns),
describing the boundary
of the region. The contour lies on the region.
It starts at the smallest line number. In that line at the
pixel with the largest column index.
The rotation direction is clockwise. The first pixel of the contour
is identical with the last. Holes of the region are ignored.
The operator get_region_contourget_region_contourGetRegionContourGetRegionContourGetRegionContourget_region_contour returns the coordinates in the form of
tuples. An empty region is passed as empty tuple.
注意
Holes of the region are ignored.
Only one region may be passed, and this region must have exactly
one connection component.
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）。
- 未采用并行化处理。
参数
RegionRegionRegionRegionregionregion (输入对象) region → objectHRegionHObjectHRegionHobject
Output region.
RowsRowsRowsRowsrowsrows (输出控制) contour.y-array → HTupleSequence[int]HTupleHtuple (integer) (int / long) (Hlong) (Hlong)
Line numbers of the contour pixels.
ColumnsColumnsColumnsColumnscolumnscolumns (输出控制) contour.x-array → HTupleSequence[int]HTupleHtuple (integer) (int / long) (Hlong) (Hlong)
Column numbers of the contour pixels.
元素数量：
Columns == Rows
结果
算子 get_region_contourget_region_contourGetRegionContourGetRegionContourGetRegionContourget_region_contour normally returns the value 2 ( H_MSG_TRUE )。
If more than one connection component is passed an exception is raised.
当输入为空（无可用输入区域）时，可设置行为通过算子 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>)。
可能的前趋
sobel_ampsobel_ampSobelAmpSobelAmpSobelAmpsobel_amp,
thresholdthresholdThresholdThresholdThresholdthreshold,
skeletonskeletonSkeletonSkeletonSkeletonskeleton,
edges_imageedges_imageEdgesImageEdgesImageEdgesImageedges_image,
gen_rectangle1gen_rectangle1GenRectangle1GenRectangle1GenRectangle1gen_rectangle1,
gen_circlegen_circleGenCircleGenCircleGenCirclegen_circle
另见
copy_objcopy_objCopyObjCopyObjCopyObjcopy_obj,
get_region_polygonget_region_polygonGetRegionPolygonGetRegionPolygonGetRegionPolygonget_region_polygon
模块
基础