The range at which I can read a 4 in. by 4 in. QR code is no more than 3.5 ft. and it takes maybe 5 or 6 seconds for ZBar to actually detect and decode it. I know that you can write programs in Python using import zbar but I am wondering what the best way to increase the range and decrease the processing time is.
Code: Select all
~ $ sudo modprobe bcm2835-v4l2 ~ $ v4l2-ctl --overlay=1 ~ $ zbarcam -v --nodisplay --prescale=640x480
All ideas and suggestions appreciated.