图像采集和二值化等处理 * Image Acquisition : Code generated by Image Acquisition open_framegrabber (, , , , , , , , , -, AcqHandle) grab_image_start (AcqHandle, -) dev_close_window () dev_open_window (, , , , 'black', WindowHandle) * 不是以填充的形式显示,而是以轮廓的形式显示!* dev