halcondistance_pc计算点和轮廓之间的距离

  

在HDevelop中

dev_close_window ()
dev_update_off()
read_image (Image9, 'D:/bb/tu/9.jpg')
rgb1_to_gray (Image9, GrayImage)

threshold (GrayImage, Region, 200, 255)
connection (Region, ConnectedRegions)
select_obj (ConnectedRegions, ObjectSelected, 2)
gen_contour_region_xld (ObjectSelected, Contours, 'border')
*根据区域创建XLD轮廓

Row:=[10,15]
Column:=[10,15]

distance_pc (Contours, Row, Column, DistanceMin, DistanceMax)
*计算点和轮廓之间的距离
*计算一个或多个点与单个轮廓之间的距离
*参数1：输入xld轮廓
*参数2：点的行坐标
*参数3：点的列坐标
*参数4：返回点与轮廓之间的最小距离
*参数5：返回点与轮廓之间的最大距离

gen_region_points (Region1, Row, Column)
*创建点区域

get_image_size (Image9, Width, Height)
dev_open_window(10,10,Width, Height,'black',WindowHandle)
dev_display(Region1)
dev_display(Contours)

 

  

在QtCreator中

  HObject  ho_Image9, ho_GrayImage, ho_Region, ho_ConnectedRegions;
  HObject  ho_ObjectSelected, ho_Contours, ho_Region1;
  HTuple  hv_Row, hv_Column, hv_DistanceMin, hv_DistanceMax;
  HTuple  hv_Width, hv_Height, hv_WindowHandle;

  ReadImage(&ho_Image9, "D:/bb/tu/9.jpg");
  Rgb1ToGray(ho_Image9, &ho_GrayImage);

  Threshold(ho_GrayImage, &ho_Region, 200, 255);
  Connection(ho_Region, &ho_ConnectedRegions);
  SelectObj(ho_ConnectedRegions, &ho_ObjectSelected, 2);
  GenContourRegionXld(ho_ObjectSelected, &ho_Contours, "border");
  //根据区域创建XLD轮廓

  hv_Row.Clear();
  hv_Row[0] = 10;
  hv_Row[1] = 15;
  hv_Column.Clear();
  hv_Column[0] = 10;
  hv_Column[1] = 15;

  DistancePc(ho_Contours, hv_Row, hv_Column, &hv_DistanceMin, &hv_DistanceMax);
  //计算点和轮廓之间的距离
  //计算一个或多个点与单个轮廓之间的距离
  //参数1：输入xld轮廓
  //参数2：点的行坐标
  //参数3：点的列坐标
  //参数4：返回点与轮廓之间的最小距离
  //参数5：返回点与轮廓之间的最大距离

  GenRegionPoints(&ho_Region1, hv_Row, hv_Column);
  //创建点区域

  GetImageSize(ho_Image9, &hv_Width, &hv_Height);
  SetWindowAttr("background_color","black");
  OpenWindow(10,10,hv_Width,hv_Height,0,"visible","",&hv_WindowHandle);
  HDevWindowStack::Push(hv_WindowHandle);
  if (HDevWindowStack::IsOpen())
    DispObj(ho_Region1, HDevWindowStack::GetActive());
  if (HDevWindowStack::IsOpen())
    DispObj(ho_Contours, HDevWindowStack::GetActive());