UVC Video modules and OpenCV on ubilinux (Debian)

Hi all,

I've seen many questions on UVC Video and OpenCV on ubilinux, so I got some time today to look into it.

For UVC video

There's 4 kernel modules needed, they're in the attached compressed tar file. Install the videobuf2 modules first, then the uvcvideo module.

You should then see your USB Video Camera recognised. I see this when I insert my Logitech Webcam:

root@ubilinux:~/opencv# dmesg | tail -7

[ 1467.224080] usb 1-1: new high-speed USB device number 5 using dwc3-host

[ 1467.247634] usb 1-1: New USB device found, idVendor=046d, idProduct=082d

[ 1467.247665] usb 1-1: New USB device strings: Mfr=0, Product=2, SerialNumber=1

[ 1467.247686] usb 1-1: Product: HD Pro Webcam C920

[ 1467.247705] usb 1-1: SerialNumber: E6C98FCF

[ 1467.257304] uvcvideo: Found UVC 1.00 device HD Pro Webcam C920 (046d:082d)

[ 1467.259871] input: HD Pro Webcam C920 as /devices/pci0000:00/0000:00:11.0/dwc3-host.2/usb1/1-1/1-1:1.0/input/input5

root@ubilinux:~/opencv#

For OpenCV:

apt-get udpate

apt-get install opencv-dev

And that's about it.

Testing It All

I then compiled the following program to see if it worked. It's a snipet of code found in another post on this forum here, thanks to 0gravity.  I created a new file, called it test.cpp

#include <iostream>

#include "opencv2/opencv.hpp"

using namespace std;

using namespace cv;

 

int main() {

  VideoCapture cap(0);

  if(!cap.isOpened()) {

  cout << "I'm blind..." << endl;

  return -1;

  }

  cout << "I can see!" << endl;

  return 0;

}

And compiled using

g++ test.cpp `pkg-config opencv --cflags --libs` -o test

Then, when running the resulting 'test' app:

root@ubilinux:~/opencv# ./test

I can see!

root@ubilinux:~/opencv#