A.cv2.selectROI()B.cv2.getRectSubPix()C.cv2.warpAffine()D.cv2.resize()
A.cv2.add()B.cv2.addWeighted()C.cv2.plus()D.cv2.sum()
A.cv2.selectROI()B.numpy數(shù)組切片C.cv2.ROI()D.cv2.region()