halconunion1将所有区域合并成一个区域

  

在HDevelop中

read_image (Image, 'D:/bb/tu/4.jpg')
rgb1_to_gray(Image,Image1)
*将RGB图像转换为灰度图像

threshold (Image1, Region,[80,87,206,195] , [90,100, 228,205])
*参数3和参数4是一一对应的阈值数组，根据阈值同时分割出多个区域
union1 (Region, RegionUnion)
*将所有区域合并成一个区域
*参数1：要计算并集的区域
*参数2：输出区域

get_image_size (Image1, Width, Height)
dev_open_window(10,10,Width, Height,'black',WindowHandle)
dev_display(Region)

dev_open_window(10,100,Width, Height,'black',WindowHandle1)
dev_display(RegionUnion)

 把4个区域合并成一个区域

在Qt Creator中

  HObject  ho_Image, ho_Image1, ho_Region, ho_RegionUnion;
  HTuple  hv_Width, hv_Height, hv_WindowHandle;
  HTuple  hv_WindowHandle1;

  ReadImage(&ho_Image, "D:/bb/tu/4.jpg");
  Rgb1ToGray(ho_Image, &ho_Image1);
  //将RGB图像转换为灰度图像

  Threshold(ho_Image1, &ho_Region, (((HTuple(80).Append(87)).Append(206)).Append(195)), 
      (((HTuple(90).Append(100)).Append(228)).Append(205)));
  //参数3和参数4是一一对应的阈值数组，根据阈值同时分割出多个区域
  Union1(ho_Region, &ho_RegionUnion);
  //将所有区域合并成一个区域
  //参数1：要计算并集的区域
  //参数2：输出区域

  GetImageSize(ho_Image1, &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_Region, HDevWindowStack::GetActive());

  SetWindowAttr("background_color","black");
  OpenWindow(10,100,hv_Width,hv_Height,0,"visible","",&hv_WindowHandle1);
  HDevWindowStack::Push(hv_WindowHandle1);
  if (HDevWindowStack::IsOpen())
    DispObj(ho_RegionUnion, HDevWindowStack::GetActive());