dilation_rectangle1dilation_rectangle1DilationRectangle1DilationRectangle1dilation_rectangle1 (算子名称)

名称

dilation_rectangle1dilation_rectangle1DilationRectangle1DilationRectangle1dilation_rectangle1 — Dilate a region with a rectangular structuring element.

参数签名

dilation_rectangle1(区域 : RegionDilation : Width, Height : )

描述

dilation_rectangle1dilation_rectangle1DilationRectangle1DilationRectangle1DilationRectangle1dilation_rectangle1 applies a dilation with a rectangular structuring element to the input regions 区域区域区域区域区域区域. The size of the structuring rectangle is WidthWidthWidthWidthwidthwidth x HeightHeightHeightHeightheightheight. 该算子 results in enlarged regions, and the holes smaller than the rectangular mask in the interior of the regions are closed.

dilation_rectangle1dilation_rectangle1DilationRectangle1DilationRectangle1DilationRectangle1dilation_rectangle1 is a very fast operation because the height of the rectangle enters only logarithmically into the runtime complexity, while the width does not enter at all. This leads to excellent runtime efficiency, even in the case of very large rectangles (edge length > 100).

注意

dilation_rectangle1dilation_rectangle1DilationRectangle1DilationRectangle1DilationRectangle1dilation_rectangle1 is applied to each input region separately. If gaps between different regions are to be closed, union1union1Union1Union1Union1union1 or union2union2Union2Union2Union2union2 has to be called first.

To enlarge a region by the same amount in all directions, WidthWidthWidthWidthwidthwidth and HeightHeightHeightHeightheightheight must be odd. If this is not the case, the region is dilated by a larger amount at the right or at the bottom, respectively, than at the left or at the top.

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) → object

Regions to be dilated.

RegionDilationRegionDilationRegionDilationRegionDilationregionDilationregion_dilation (output_object) region(-array) → object

Dilated regions.

WidthWidthWidthWidthwidthwidth (input_control) extent.x → (integer)

Width of the structuring rectangle.

Default: 11

Suggested values: 1, 2, 3, 4, 5, 11, 15, 21, 31, 51, 71, 101, 151, 201

Value range: 1 ≤ Width Width Width Width width width ≤ 511 (lin)

Minimum increment: 1

Recommended increment: 10

HeightHeightHeightHeightheightheight (input_control) extent.y → (integer)

Height of the structuring rectangle.

Default: 11

Suggested values: 1, 2, 3, 4, 5, 11, 15, 21, 31, 51, 71, 101, 151, 201

Value range: 1 ≤ Height Height Height Height height height ≤ 511 (lin)

Minimum increment: 1

Recommended increment: 10

Example (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"

main()
{
  cout << "Reproduction of 'dilation_rectangle ()'" << endl;
  cout << "First = original image " << endl;
  cout << "Blue  = after dilation " << endl;
  cout << "Red   = after segmentation " << endl;

  HByteImage img("monkey");
  HWindow    w;

  HRegionArray regs   = (img >= 220).Connection();
  HRegionArray dilreg = regs.DilationRectangle1 (2, 4);

                        img.Display (w);      w.Click ();
  w.SetColor ("blue");  dilreg.Display (w);   w.Click ();
  w.SetColor ("red");   regs.Display (w);     w.Click ();

  return(0);
}

例程 (C)

threshold(Image,&Light,220.0,255.0);
dilation_rectangle1(Light,&Wide,50,50);
set_color(WindowHandle,"red");
disp_region(Wide,WindowHandle);
set_color(WindowHandle,"white");
disp_region(Light,WindowHandle);

Example (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"

main()
{
  cout << "Reproduction of 'dilation_rectangle ()'" << endl;
  cout << "First = original image " << endl;
  cout << "Blue  = after dilation " << endl;
  cout << "Red   = after segmentation " << endl;

  HByteImage img("monkey");
  HWindow    w;

  HRegionArray regs   = (img >= 220).Connection();
  HRegionArray dilreg = regs.DilationRectangle1 (2, 4);

                        img.Display (w);      w.Click ();
  w.SetColor ("blue");  dilreg.Display (w);   w.Click ();
  w.SetColor ("red");   regs.Display (w);     w.Click ();

  return(0);
}

Example (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"

main()
{
  cout << "Reproduction of 'dilation_rectangle ()'" << endl;
  cout << "First = original image " << endl;
  cout << "Blue  = after dilation " << endl;
  cout << "Red   = after segmentation " << endl;

  HByteImage img("monkey");
  HWindow    w;

  HRegionArray regs   = (img >= 220).Connection();
  HRegionArray dilreg = regs.DilationRectangle1 (2, 4);

                        img.Display (w);      w.Click ();
  w.SetColor ("blue");  dilreg.Display (w);   w.Click ();
  w.SetColor ("red");   regs.Display (w);     w.Click ();

  return(0);
}

Example (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"

main()
{
  cout << "Reproduction of 'dilation_rectangle ()'" << endl;
  cout << "First = original image " << endl;
  cout << "Blue  = after dilation " << endl;
  cout << "Red   = after segmentation " << endl;

  HByteImage img("monkey");
  HWindow    w;

  HRegionArray regs   = (img >= 220).Connection();
  HRegionArray dilreg = regs.DilationRectangle1 (2, 4);

                        img.Display (w);      w.Click ();
  w.SetColor ("blue");  dilreg.Display (w);   w.Click ();
  w.SetColor ("red");   regs.Display (w);     w.Click ();

  return(0);
}

Complexity

Let F1 be the area of an input region and H be the height of the rectangle. Then the runtime complexity for one region is:

结果

dilation_rectangle1dilation_rectangle1DilationRectangle1DilationRectangle1DilationRectangle1dilation_rectangle1 returns 2 ( H_MSG_TRUE) if all parameters are correct. The behavior in case of empty or no input region can be set via:

Otherwise, an exception is raised.

可能的前置算子

thresholdthresholdThresholdThresholdThresholdthreshold, regiongrowingregiongrowingRegiongrowingRegiongrowingRegiongrowingregiongrowing, connectionconnectionConnectionConnectionConnectionconnection, union1union1Union1Union1Union1union1, watershedswatershedsWatershedsWatershedsWatershedswatersheds, class_ndim_normclass_ndim_normClassNdimNormClassNdimNormClassNdimNormclass_ndim_norm

可能的后置算子

reduce_domainreduce_domainReduceDomainReduceDomainReduceDomainreduce_domain, select_shapeselect_shapeSelectShapeSelectShapeSelectShapeselect_shape, area_centerarea_centerAreaCenterAreaCenterAreaCenterarea_center, connectionconnectionConnectionConnectionConnectionconnection

可替代算子

minkowski_add1minkowski_add1MinkowskiAdd1MinkowskiAdd1MinkowskiAdd1minkowski_add1, minkowski_add2minkowski_add2MinkowskiAdd2MinkowskiAdd2MinkowskiAdd2minkowski_add2, expand_regionexpand_regionExpandRegionExpandRegionExpandRegionexpand_region, dilation1dilation1Dilation1Dilation1Dilation1dilation1, dilation2dilation2Dilation2Dilation2Dilation2dilation2, dilation_circledilation_circleDilationCircleDilationCircleDilationCircledilation_circle

参考其它

gen_rectangle1gen_rectangle1GenRectangle1GenRectangle1GenRectangle1gen_rectangle1, gen_region_polygon_filledgen_region_polygon_filledGenRegionPolygonFilledGenRegionPolygonFilledGenRegionPolygonFilledgen_region_polygon_filled

模块

Foundation

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