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import cv2  # 导入OpenCV模块
import matplotlib.pyplot as plt  # 导入matplotlib模块
import numpy as np  # 导入NumPy模块

img = cv2.imread('test.jpeg')  # 读取名为'test.jpeg'的图像,并将其存储到变量img中
cv2.imshow('img',img)  # 在名为'img'的窗口中显示读取的图像
cv2.waitKey(0)  # 等待用户按下任意键
cv2.destroyAllWindows()  # 关闭所有打开的窗口