Halcon 视觉--零件分拣

来源：http://blog.sina.com.cn/s/blog_13249c1060102vaj2.html

实现流程：
读图 ---> 阈值化 ---> 连通 ---> 填充 ---> 选择特征 ---> 结果

代码实现：
dev_close_window ()
read_image (Image, 'bolt.jpg')
get_image_pointer1 (Image, Pointer, Type, Width, Height)
dev_open_window (0, 0, Width, Height, 'black', WindowHandle)
dev_display (Image)
threshold (Image, Region, 0, 150)
connection (Region, ConnectedRegions)
fill_up (ConnectedRegions, RegionFillUp)
select_shape (RegionFillUp, SelectedRegions, ['area','circularity'], 'and', [1000,0.95], [5000,1.00])
dev_display(Image)
dev_display(SelectedRegions)