关于Python安装opencv

#安装 opencv
pip install opencv-contrib-python -i https://pypi.tuna.tsinghua.edu.cn/simple/

opencv-contrib-python 包含 numpy库，numpy库是Python的一个扩展程序库，支持大量的维度数组与矩阵运算。

# This is a sample Python script.

# Press Shift+F10 to execute it or replace it with your code.
# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.

import cv2

def print_hi(name):
    # Use a breakpoint in the code line below to debug your script.
    print(f'Hi, {name}')  # Press Ctrl+F8 to toggle the breakpoint.


def view():
    image = cv2.imread("opencv.png")
    cv2.imshow("show", image)
    # 显示2秒
    cv2.waitKey(2000)
    cv2.destoryAllWindows()


# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    # print_hi('PyCharm')
    view()