get_region_convexT_get_region_convexGetRegionConvexGetRegionConvexget_region_convex (算子)
名称
get_region_convexT_get_region_convexGetRegionConvexGetRegionConvexget_region_convex — 访问凸包作为轮廓。
签名
def get_region_convex(region: HObject) -> Tuple[Sequence[int], Sequence[int]]
描述
算子 get_region_convexget_region_convexGetRegionConvexGetRegionConvexGetRegionConvexget_region_convex returns the convex hull of a region
as polygon. The polygon is the minimum result
of line (RowsRowsRowsRowsrowsrows) and column coordinates (ColumnsColumnsColumnsColumnscolumnscolumns)
describing the hull of the region. The polygon pixels lie
on the region.
The polygon starts at the smallest line number; in this line at the
pixel with the largest column index.
The rotation direction is clockwise. The first pixel of the polygon
is identical with the last.
The operator get_region_convexget_region_convexGetRegionConvexGetRegionConvexGetRegionConvexget_region_convex returns the coordinates in the form
of tuples. An empty region is passed as empty tuple.
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 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_convexget_region_convexGetRegionConvexGetRegionConvexGetRegionConvexget_region_convex 返回值 2 ( H_MSG_TRUE )。
可能的前趋
thresholdthresholdThresholdThresholdThresholdthreshold,
skeletonskeletonSkeletonSkeletonSkeletonskeleton,
dyn_thresholddyn_thresholdDynThresholdDynThresholdDynThresholddyn_threshold
可能的后继
disp_polygondisp_polygonDispPolygonDispPolygonDispPolygondisp_polygon
替代
shape_transshape_transShapeTransShapeTransShapeTransshape_trans
另见
select_objselect_objSelectObjSelectObjSelectObjselect_obj,
get_region_contourget_region_contourGetRegionContourGetRegionContourGetRegionContourget_region_contour
模块
基础