OpenCV error on spyder

Question

I want to use OpenCV with python on spyder.
But error occured when I run a simple code.

import cv2
img = cv2.imread('pi.png',0)
cv2.imshow('image', img)
cv2.waitKey(0)
dcv2.destroyAllwindows()

Error

This application failed to start because it could not find or load the Qt platform plugin "xcb".

Reinstalling the application may fix this problem.

The error is occured at this line.

cv2.imshow('image', img)

Details: Ubuntu 14.04(LTS), OpenCV 2.4.13, Spyder 2.3.9(Python 2.7)

Please Tell me in detail what should I do.

How did you install OpenCV? See here: http://stackoverflow.com/questions/30483753/python-app-xcb-plugin-fail — darthbith, Aug 09 '16 at 23:41
I've already checked that page, but I didn't understand answer. — Taewoo Lee, Aug 10 '16 at 06:08
However the problem is solved from referring to this page's answer. Thank you! — Taewoo Lee, Aug 10 '16 at 06:14

score 0 · Accepted Answer · edited May 23 '17 at 12:22

But, the problem is solved from changing condition when I reinstall OpenCV

Installation is referred to this page.

The key of the solution in this method is simple!

Change the condition from 'WITH_QT=ON' to 'WITH_QT=OFF' in the script. (opencv.sh)

I don't have any solution without reinstalling because I'm inexperienced.

If you know about solution that change the condition without reintalling or reason why the problem is occured, give me a feedback please.

Thank you.

1 Answers1