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並前往https://pysource.com/2018/03/27/mouse-events-opencv-3-4-with-python-3-tutorial-27/

Mouse Events – OpenCV 3.4 with python 3 Tutorial 27

Draw circles: [python] import cv2 import numpy as np. def mouse_drawing(event, x, y, flags, params): if event == cv2.EVENT_LBUTTONDOWN:

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