OpenCv code throws segmentation error(core dumped) Ubuntu 14.04
I'm beginner learning opencv from the official documentation http://docs.opencv.org/trunk/doc/py_tutorials/py_gui/py_video_display/py_video_display.html#display-video
import numpy as np
import cv2
cap = cv2.VideoCapture(0)
while(True):
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()
It's giving me error "Segmentation fault (core dumped)" Can anyone please tell me Why is that happening and how to resolve that issue?
Thanks in advance.
Maybe its a little late but what "user3154952" says is true, when you are working with the C++ api you don't need to use the release method, it is already in the video capture Destructor.
This is the code i tested and worked fine:
import sys
import cv2
cap = cv2.VideoCapture(0)
while(1):
ret,frame = cap.read()
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
cv2.imshow('frame',gray)
if cv2.waitKey(1) & 0xFF == 27:
break
cv2.destroyAllWindows()
Update: i have been messing around with my ps3 eye and i've realized that with that camera you get the segmentation error for using only the destroyAllWindows method, to fix that i replaced the destroyAllWindows method with the release method and worked fine, i don't know exactly why that happened i'm just sharing in case someone get that issue. I hope that was helpful.
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