python.exe crashing when running basic OpenCV example

Question

I'm just following the second example from this tutorial and using a different video. Can anyone help solve the problem of why it crashes? I thought it would be my cheap Windows 7 running on 2 GB RAM, but it's not even using up the RAM when it crashes.

import numpy as np
import cv2

cap = cv2.VideoCapture("F:\\OpenCV\\Cam1_Indoor.avi")

fgbg = cv2.createBackgroundSubtractorMOG2()

while(1):
    ret, frame = cap.read()

    fgmask = fgbg.apply(frame)

    cv2.imshow('frame',fgmask)
    k = cv2.waitKey(30) & 0xff
    if k == 27:
        break

cap.release()
cv2.destroyAllWindows()

UPDATE 1: I still can't get this working, but I have tried to debug it some more. I found that regardless of the video file name I give it (even if it's totally bogus), the same crash happens.

UPDATE 2: I found that the code below works on images, so my problem may have to do with video capture.

im_in = cv2.imread("F:\\OpenCV\\nickel.jpg", cv2.IMREAD_GRAYSCALE);
fgbg = cv2.createBackgroundSubtractorMOG2()
fgmask = fgbg.apply(im_in)
cv2.imshow('frame',fgmask)
cv2.waitKey(0)

try checking if the frame is empty before doing your processing. In C++ it's `if(frame.empty()){ std::cerr<<"frame is empty"< — GPPK, Dec 03 '15 at 10:17
@PaulRooney - I don't know where to get the video they use, hence I am using my own video — FullStack, Dec 03 '15 at 10:50
@GPPK - I tried `frame.empty()` but got the error `object has no attribute 'empty'` — FullStack, Dec 03 '15 at 10:50
Turns out this was the issue: https://stackoverflow.com/questions/11699298/opencv-2-4-videocapture-not-working-on-windows — FullStack, Dec 14 '15 at 10:41

score 0 · Answer 1 · edited Feb 07 '17 at 13:09

0

Add this below import statements

cv2.ocl.setUseOpenCL(False)

edited Feb 07 '17 at 13:09

Jonathan Argentiero

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answered Feb 07 '17 at 12:41

Kamal Seth

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python.exe crashing when running basic OpenCV example

1 Answers1