lowlandslowlandsLowlandsLowlandslowlands (算子名称)

名称

lowlandslowlandsLowlandsLowlandslowlands — Detect all gray value lowlands.

参数签名

lowlands(Image : Lowlands : : )

描述

lowlandslowlandsLowlandsLowlandsLowlandslowlands extracts all points from ImageImageImageImageimageimage with a gray value less or equal to the gray value of its neighbors (8-neighborhood) and returns them in LowlandsLowlandsLowlandsLowlandslowlandslowlands. Each lowland is returned as a separate region.

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

ImageImageImageImageimageimage (input_object) singlechannelimage(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4 / int8 / real)

Image to be processed.

LowlandsLowlandsLowlandsLowlandslowlandslowlands (output_object) region-array → object

Extracted lowlands as regions (one region for each lowland).

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

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

int main (int argc, char *argv[])
{
  if (argc != 2)
  {
    cout << "Usage : " << argv[0] << " <name of image>" << endl;
    return (-1);
  }

  HImage   image (argv[1]);
  HWindow  win;

  image.Display (win);

  HImage       cres = image.CornerResponse (5, 0.04);
  HRegionArray mins = cres.Lowlands ();

  win.SetColored (12);
  mins.Display (win);
  win.Click ();

  return (0);
}

例程 (C)

read_image(&Image,"fabrik");
corner_responce(Image,&CornerResp,5,0.04);
lowlands(CornerResp,&Minima);
set_colored(WindowHandle,12);
disp_region(Minima,WindowHandle);
T_area_center(Minima,NULL,&Row,&Col);

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

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

int main (int argc, char *argv[])
{
  if (argc != 2)
  {
    cout << "Usage : " << argv[0] << " <name of image>" << endl;
    return (-1);
  }

  HImage   image (argv[1]);
  HWindow  win;

  image.Display (win);

  HImage       cres = image.CornerResponse (5, 0.04);
  HRegionArray mins = cres.Lowlands ();

  win.SetColored (12);
  mins.Display (win);
  win.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"
using namespace Halcon;

int main (int argc, char *argv[])
{
  if (argc != 2)
  {
    cout << "Usage : " << argv[0] << " <name of image>" << endl;
    return (-1);
  }

  HImage   image (argv[1]);
  HWindow  win;

  image.Display (win);

  HImage       cres = image.CornerResponse (5, 0.04);
  HRegionArray mins = cres.Lowlands ();

  win.SetColored (12);
  mins.Display (win);
  win.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"
using namespace Halcon;

int main (int argc, char *argv[])
{
  if (argc != 2)
  {
    cout << "Usage : " << argv[0] << " <name of image>" << endl;
    return (-1);
  }

  HImage   image (argv[1]);
  HWindow  win;

  image.Display (win);

  HImage       cres = image.CornerResponse (5, 0.04);
  HRegionArray mins = cres.Lowlands ();

  win.SetColored (12);
  mins.Display (win);
  win.Click ();

  return (0);
}

可能的前置算子

binomial_filterbinomial_filterBinomialFilterBinomialFilterBinomialFilterbinomial_filter, gauss_filtergauss_filterGaussFilterGaussFilterGaussFiltergauss_filter, smooth_imagesmooth_imageSmoothImageSmoothImageSmoothImagesmooth_image

可能的后置算子

area_centerarea_centerAreaCenterAreaCenterAreaCenterarea_center, get_region_pointsget_region_pointsGetRegionPointsGetRegionPointsGetRegionPointsget_region_points, select_shapeselect_shapeSelectShapeSelectShapeSelectShapeselect_shape

可替代算子

lowlands_centerlowlands_centerLowlandsCenterLowlandsCenterLowlandsCenterlowlands_center, gray_skeletongray_skeletonGraySkeletonGraySkeletonGraySkeletongray_skeleton, local_minlocal_minLocalMinLocalMinLocalMinlocal_min

参考其它

monotonymonotonyMonotonyMonotonyMonotonymonotony, topographic_sketchtopographic_sketchTopographicSketchTopographicSketchTopographicSketchtopographic_sketch, corner_responsecorner_responseCornerResponseCornerResponseCornerResponsecorner_response, texture_lawstexture_lawsTextureLawsTextureLawsTextureLawstexture_laws

模块

Foundation

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