closing_circleclosing_circleClosingCircleClosingCircleclosing_circle (算子)

名称

closing_circleclosing_circleClosingCircleClosingCircleclosing_circle — 用圆形结构元素关闭一个区域。

签名

closing_circle(Region : RegionClosing : Radius : )

描述

closing_circleclosing_circleClosingCircleClosingCircleClosingCircleclosing_circle behaves analogously to closingclosingClosingClosingClosingclosing, i.e., the regions' boundaries are smoothed and holes within a region which are smaller than the circular structuring element of radius RadiusRadiusRadiusRadiusradiusradius are closed. The closing_circleclosing_circleClosingCircleClosingCircleClosingCircleclosing_circle operation is defined as a dilation followed by a Minkowski subtraction, both with the same circular structuring element.

注意

closing_circleclosing_circleClosingCircleClosingCircleClosingCircleclosing_circle is applied to each input region separately. If gaps between different regions are to be closed, union1union1Union1Union1Union1union1 or union2union2Union2Union2Union2union2 has to be called first.

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

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

Regions to be closed.

RegionClosingRegionClosingRegionClosingRegionClosingregionClosingregion_closing (输出对象) region(-array) → object

Closed regions.

RadiusRadiusRadiusRadiusradiusradius (输入控制) real → (real / integer)

Radius of the circular structuring element.

默认值： 3.5

建议值： 1.5, 2.5, 3.5, 4.5, 5.5, 7.5, 9.5, 12.5, 15.5, 19.5, 25.5, 33.5, 45.5, 60.5, 110.5

值范围： 0.5 ≤ Radius Radius Radius Radius radius radius ≤ 511.5 (lin)

最小增量： 1.0

建议增量： 1.0

示例（C）

my_closing_circle(Hobject In, double Radius, Hobject *Out)
{
  Hobject  tmp, StructElement;
  gen_circle(StructElement,100.0,100.0,Radius);
  dilation1(In,StructElement,&tmp,1);
  minkowski_sub1(tmp,StructElement,Out,1);
}

复杂度

Let F1 be the area of the input region. Then the runtime complexity for one region is:

结果

closing_circleclosing_circleClosingCircleClosingCircleClosingCircleclosing_circle 在所有参数正确时返回 2 ( H_MSG_TRUE )。当输入区域为空或不存在时，其行为可通过以下方式设置：

否则，将抛出异常。

可能的前趋

thresholdthresholdThresholdThresholdThresholdthreshold, regiongrowingregiongrowingRegiongrowingRegiongrowingRegiongrowingregiongrowing, connectionconnectionConnectionConnectionConnectionconnection, union1union1Union1Union1Union1union1, watershedswatershedsWatershedsWatershedsWatershedswatersheds, class_ndim_normclass_ndim_normClassNdimNormClassNdimNormClassNdimNormclass_ndim_norm

可能的后继

reduce_domainreduce_domainReduceDomainReduceDomainReduceDomainreduce_domain, select_shapeselect_shapeSelectShapeSelectShapeSelectShapeselect_shape, area_centerarea_centerAreaCenterAreaCenterAreaCenterarea_center, connectionconnectionConnectionConnectionConnectionconnection

替代

rank_regionrank_regionRankRegionRankRegionRankRegionrank_region, fill_upfill_upFillUpFillUpFillUpfill_up, closingclosingClosingClosingClosingclosing

另见

dilation1dilation1Dilation1Dilation1Dilation1dilation1, minkowski_sub1minkowski_sub1MinkowskiSub1MinkowskiSub1MinkowskiSub1minkowski_sub1, erosion1erosion1Erosion1Erosion1Erosion1erosion1, openingopeningOpeningOpeningOpeningopening

模块

基础

算子