No module named cv2

Question

I am getting error

No module named cv2

Can you please guide what command should I type to install CV2 (sudo qpt-get install ..?) Thank you

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()

What version of linux are you using? Possible duplicate of http://stackoverflow.com/questions/19876079/opencv-cannot-find-module-cv2 — Paul Lo, Dec 22 '14 at 16:51
I followed the instructions from here http://docs.opencv.org/trunk/doc/tutorials/introduction/linux_install/linux_install.html — Padraic Cunningham, Dec 22 '14 at 17:40
@Paul Lo Although my problem has solved but can you please tell me how do i check version of Linux — Fahadkalis, Dec 22 '14 at 18:52
@Padraic Cunningham I don't know why this one was not working at my side — Fahadkalis, Dec 22 '14 at 18:54
This article might help: http://unix.stackexchange.com/questions/6345/how-can-i-get-distribution-name-and-version-number-in-a-simple-shell-script — Paul Lo, Dec 23 '14 at 02:20

score 5 · Answer 1 · edited Apr 08 '17 at 07:40

5

use pip command line:

pip install opencv-python

edited Apr 08 '17 at 07:40

Ali

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answered Apr 08 '17 at 06:29

Hawk Rong

165
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score 2 · Accepted Answer · answered Dec 22 '14 at 16:54

2

sudo apt-get install python-openCV

answered Dec 22 '14 at 16:54

Irshad Bhat

8,479
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Sorry to ask you incomplete question, both machines are directly connected to each other, and I know the password of my both machines. I want to put all info(host-name, IP, password) in program so that It will not ask for more info during program execution. Thank You – Fahadkalis Dec 22 '14 at 19:07
I've posted a solution for this problem where you have asked it. Hole it works for you... – Irshad Bhat Dec 24 '14 at 09:37

score 0 · Answer 3 · answered May 13 '18 at 12:18

0

you can also use conda install cv2:

conda install -c opencv3

answered May 13 '18 at 12:18

Livmortis

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No module named cv2

3 Answers3