Using a USB webcam (with virtualbox)

Introduction

Making a usb webcam work in Linux AND virtualbox …

install opencv for python

sudo apt update
sudo apt install -y python3-opencv
# may be done already …

install uvc stuff.

sudo apt update
sudo apt install -y libuvc-dev guvcview cheese v4l-utils …

getting cv_bridge working with python 3 is less straightforward. you need to recompile cv_bridge …