HALCON示例程序inspect_solar_fingers.hdev太阳能电池板电路缺陷检测

示例程序源码（加注释）

• 关于显示类函数解释
  dev_update_off ()
  dev_close_window ()
  ImageName := ‘solar_cell/solar_cell_’
  read_image (Image, ImageName + ‘01’)
  dev_open_window_fit_image (Image, 0, 0, -1, -1, WindowHandle)
  set_display_font (WindowHandle, 14, ‘mono’, ‘true’, ‘false’)
  dev_set_color (‘red’)
  dev_set_draw (‘margin’)
  dev_set_line_width (2)
  NumImages := 6
  for Index := 1 to NumImages by 1
  read_image (Image, ImageName + Index$‘02’)
  • 彩色图像分成RGB三个通道
    decompose3 (Image, ImageR, ImageG, ImageB)
  • 二值化
    threshold (ImageR, Region, 0, 159)
    *分割连通域
    connection (Region, ConnectedRegions)
  • 使用宽度、高度、面积对区域进行筛选
    select_shape (ConnectedRegions, GoodSmallParts, [‘area’,‘width’], ‘and’, [3500,130], [5000,300])
    select_shape (ConnectedRegions, GoodLongParts, [‘area’,‘width’], ‘and’, [6000,350], [10000,550])
    select_shape (ConnectedRegions, Clutter, [‘width’,‘height’,‘area’], ‘or’, [900,900,0], [1000,1000,100])
  • 求取筛选出的与合格的不同的区域
    difference (ConnectedRegions, GoodSmallParts, Difference)
    difference (Difference, GoodLongParts, Difference)
    difference (Difference, Clutter, BrokenParts)
  • 对不合格区域进行形状变换，变换为矩形
    shape_trans (BrokenParts, BrokenPartsTrans, ‘rectangle1’)
  • 合格的部分高度大概在19，用高为25的矩形进行腐蚀，那么断开区域就能被筛选出来了
    erosion_rectangle1 (BrokenParts, RegionErosion, 1, 25)
    connection (RegionErosion, ConnectedBreaks)
  • 求区域的最小外接圆
    shape_trans (ConnectedBreaks, Breaks, ‘outer_circle’)
  • 膨胀一下
    dilation_circle (Breaks, Breaks, 6)
  • 删除空区域
    select_shape (Breaks, Breaks, ‘area’, ‘and’, 1, 99999999)
    count_obj (Breaks, CountBreaks)
    dev_display (Image)
    dev_display (BrokenPartsTrans)
    dev_display (Breaks)
  if (CountBreaks == 0)
  disp_message (WindowHandle, ‘Cell OK’, ‘window’, 12, 12, ‘black’, ‘true’)
  else
  disp_message (WindowHandle, ‘Cell not OK’, ‘window’, 12, 12, ‘red’, ‘true’)
  endif
  *
  if (Index != NumImages)
  disp_continue_message (WindowHandle, ‘black’, ‘true’)
  stop ()
  endif
  • 如果只有一处缺陷，放大显示
    if (CountBreaks == 1)
    dev_open_window (0, 610, 300, 300, ‘black’, WindowHandle1)
    area_center (Breaks, Area, Row, Column)
    dev_set_part (Row[0] - 50, Column[0] - 50, Row[0] + 50, Column[0] + 50)
    dev_display (Image)
    dev_display (BrokenPartsTrans)
    dev_display (Breaks)
    stop ()
    dev_set_window (WindowHandle1)
    dev_close_window ()
    endif
    endfor

处理思路

这个例子是主要讲解了太阳能电池板的电路完整性检测。灵活的应用了select_shape 与difference ；shape_trans完成了缺陷区域的框选；erosion_rectangle1 腐蚀缺陷区域以提取断点。

后记

大家有什么问题可以向我提问哈，我看到了第一时间回复，希望在学习的路上多多结交良师益友。