Ubuntu opencv camera error












1















I am using Ubuntu 18 in Virtualbox and I am doing objectdetection project in ubunut but I am trying to open camera using opencv,
its showing error :VIDEOIO ERROR: V4L: can't find camera device
Segmentation fault (core dumped)



please help me how to open camera using opencv in Ubuntu



enter code here

import numpy as np
import cv2

cap = cv2.VideoCapture(-1)

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()


and also I am trying this



sudo modprobe bcm2835-v4l2


to change the module it shows another error :



FATAL: Module bcm2835-v4l2 not found in directory /lib/modules/4.15.0-45-generic









share|improve this question























  • Did you set up Webcam Passthrough from the host to the guest OS?

    – steeldriver
    Feb 16 at 10:11
















1















I am using Ubuntu 18 in Virtualbox and I am doing objectdetection project in ubunut but I am trying to open camera using opencv,
its showing error :VIDEOIO ERROR: V4L: can't find camera device
Segmentation fault (core dumped)



please help me how to open camera using opencv in Ubuntu



enter code here

import numpy as np
import cv2

cap = cv2.VideoCapture(-1)

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()


and also I am trying this



sudo modprobe bcm2835-v4l2


to change the module it shows another error :



FATAL: Module bcm2835-v4l2 not found in directory /lib/modules/4.15.0-45-generic









share|improve this question























  • Did you set up Webcam Passthrough from the host to the guest OS?

    – steeldriver
    Feb 16 at 10:11














1












1








1








I am using Ubuntu 18 in Virtualbox and I am doing objectdetection project in ubunut but I am trying to open camera using opencv,
its showing error :VIDEOIO ERROR: V4L: can't find camera device
Segmentation fault (core dumped)



please help me how to open camera using opencv in Ubuntu



enter code here

import numpy as np
import cv2

cap = cv2.VideoCapture(-1)

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()


and also I am trying this



sudo modprobe bcm2835-v4l2


to change the module it shows another error :



FATAL: Module bcm2835-v4l2 not found in directory /lib/modules/4.15.0-45-generic









share|improve this question














I am using Ubuntu 18 in Virtualbox and I am doing objectdetection project in ubunut but I am trying to open camera using opencv,
its showing error :VIDEOIO ERROR: V4L: can't find camera device
Segmentation fault (core dumped)



please help me how to open camera using opencv in Ubuntu



enter code here

import numpy as np
import cv2

cap = cv2.VideoCapture(-1)

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()


and also I am trying this



sudo modprobe bcm2835-v4l2


to change the module it shows another error :



FATAL: Module bcm2835-v4l2 not found in directory /lib/modules/4.15.0-45-generic






virtualbox lubuntu webcam camera opencv






share|improve this question













share|improve this question











share|improve this question




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asked Feb 16 at 7:10









Suresh MithunSuresh Mithun

62




62













  • Did you set up Webcam Passthrough from the host to the guest OS?

    – steeldriver
    Feb 16 at 10:11



















  • Did you set up Webcam Passthrough from the host to the guest OS?

    – steeldriver
    Feb 16 at 10:11

















Did you set up Webcam Passthrough from the host to the guest OS?

– steeldriver
Feb 16 at 10:11





Did you set up Webcam Passthrough from the host to the guest OS?

– steeldriver
Feb 16 at 10:11










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