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| import cv2 def draw_rectangle(event,x,y,flags,param): global ix, iy if event==cv2.EVENT_LBUTTONDOWN: ix, iy = x, y print("point1:=", x, y) elif event==cv2.EVENT_LBUTTONUP: print("point2:=", x, y) print("width=",x-ix) print("height=", y - iy) cv2.rectangle(img, (ix, iy), (x, y), (0, 255, 0), 2)
img = cv2.imread("max.png") cv2.namedWindow('image') cv2.setMouseCallback('image', draw_rectangle) while(1): cv2.imshow('image', img) if cv2.waitKey(20) & 0xFF == 27: break cv2.destroyAllWindows()
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