我把OpenCV的可以放到Qt里面了，这个可以直接修改用。OpenCV的HighGUI也可以用，总不是那么放心。-I can put Qt OpenCV' s inside, and this can modify the use. OpenCV' s HighGUI can also be used, not always so assured.

openc和c++实现检测圆形和直线 建议用qt打开(detect CIRCLE and Line)