halconlocal_threshold局部阈值适合不均匀照明

在HDevelop中

read_image (Image, 'D:/bb/tu/11.png')
get_image_size (Image, Width, Height)

dev_open_window (10, 10, Width, Height, 'black', WindowHandle)

local_threshold (Image, Region, 'adapted_std_deviation', 'dark', [], [])
*局部阈值--适合不均匀照明-->渐变背景
*参数1：输入图像
*参数2：分割后的区域
*参数3：分割方法     'adapted_std_deviation'  
*参数4：提取前景还是背景

dev_display(Region)

在QtCreator中

  HObject  ho_Image, ho_Region;
  HTuple  hv_Width, hv_Height, hv_WindowHandle;

  ReadImage(&ho_Image, "D:/bb/tu/11.png");
  GetImageSize(ho_Image, &hv_Width, &hv_Height);

  SetWindowAttr("background_color","black");
  OpenWindow(10,10,hv_Width,hv_Height,0,"visible","",&hv_WindowHandle);
  HDevWindowStack::Push(hv_WindowHandle);

  LocalThreshold(ho_Image, &ho_Region, "adapted_std_deviation", "dark", HTuple(), 
      HTuple());
  //局部阈值--适合不均匀照明-->渐变背景
  //参数1：输入图像
  //参数2：分割后的区域
  //参数3：分割方法     'adapted_std_deviation'
  //参数4：提取前景还是背景

  if (HDevWindowStack::IsOpen())
    DispObj(ho_Region, HDevWindowStack::GetActive());