v4l2-ctl -c zoom_absolute=500 #zoom in v4l2-ctl -c auto_exposure=3 #turn auto-exposure on v4l2-ctl -c exposure_dynamic_framerate=0 #this option is required for 30 fps v4l2-ctl -c sharpness=0 v4l2-ctl -c gain=0 v4l2-ctl -c contrast=128 #default value v4l2-ctl -c brightness=128 #default value v4l2-ctl -c focus_automatic_continuous=0 #auto-focus seemed to cause issues in low light v4l2-ctl -c focus_absolute=0 v4l2-ctl -c power_line_frequency=0 #make sure the python virtual environment is created and activated python3 -m venv .venv source .venv/bin/activate #the openseeface command python3 facetracker.py --fps 30 --ip 127.0.0.1 --port 11573 --model 3 -W 640 -H 480 #--preview 1