Ubuntu opencv camera error












0















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







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    0















    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







    New contributor




    Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0








      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







      New contributor




      Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      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







      New contributor




      Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






      New contributor




      Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 7 mins ago









      Suresh MithunSuresh Mithun

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      New contributor




      Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      New contributor





      Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Suresh Mithun is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















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