1.提取需要的图片内容

* Image Acquisition 01: Code generated by Image Acquisition 01
dev_update_window('off')
dev_close_window ()
dev_open_window (0, 0, 512, 512, 'black', WindowHandle)
read_image (Image, 'E:/halcon项目/1.提取图片中的文字/library.gif')
rgb1_to_gray (Image, GrayImage)
dev_display (GrayImage)
stop ()
threshold (GrayImage, Regions, 0, 233)
dev_display (Regions)
stop ()
connection (Regions, ConnectedRegions)
dev_display (ConnectedRegions)
stop ()
select_shape (ConnectedRegions, SelectedRegions, 'height', 'and', 0, 21.56)
dev_display (SelectedRegions)