ZBar Bar Code Reader is a library for decoding bar codes
ZBar Bar Code Reader is a library for scanning and decoding bar codes
from various sources such as video streams, image files or raw intensity
sensors. It supports EAN/UPC, Code 128, Code 39 and Interleaved 2 of 5.
Included with the library are basic applications for decoding captured
bar code images and using a video device (eg, webcam) as a bar code
scanner. For application developers, language bindings are included for
C, C++, Python and Perl as well as GUI widgets for Qt, GTK and PyGTK.