沒有名為cv2的模塊

Question

我遇到錯誤

No module named cv2

您能指導我鍵入什么命令來安裝CV2（sudo qpt-get install ..？）謝謝

import numpy as np
import cv2

cap = cv2.VideoCapture('vtest.avi')

while(cap.isOpened()):
    ret, frame = cap.read()

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    cv2.imshow('frame',gray)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

Answer 1

使用pip命令行：

pip install opencv-python

Answer 2

sudo apt-get install python-openCV

Answer 3

您還可以使用conda install cv2：

conda install -c opencv3