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Discussion on: Run GUI app in linux docker container on windows host

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santoshburada profile image
santosh-burada

Hi,Robin

I'm want to access the webcam **but I cant
**This is docker run command

docker run --privileged --rm -it -e DISPLAY=192.168.56.1:0.0 --device=/dev/video0:/dev/video0 -v /tmp/.X11-unix:/tmp/.X11-unix face2_mysql

This is the error I got

VIDEOIO ERROR: V4L: can't find camera device
VIDEOIO ERROR: V4L: can't find camera device
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/local/lib/python3.7/tkinter/init.py", line 1705, in call
return self.func(*args)
File "/usr/app/Facerec.py", line 105, in FaceRecognition
fraud=self.ObjectDetectionP2(img,c)
File "/usr/app/Facerec.py", line 48, in ObjectDetectionP2
blob = cv2.dnn.blobFromImage(img, 1 / 255, (WidthHeightTarget, WidthHeightTarget), [0, 0, 0], 1, crop=False)
cv2.error: OpenCV(3.4.2) /opt/opencv-3.4.2/modules/imgproc/src/resize.cpp:4044: error: (-215:Assertion failed) !ssize.empty() in function 'resize'