ZBar is an open source software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code.
ZBar是一个用来从输入获取条形码的开源库，输入可以包括视频、图片和原 始强度的传感器等（raw intensity sensors）。ZBar支持EAN-13/UPC-A，UPC-E，EAN-8，128码，39码，交叉25码，和QR码等条形码。
The flexible, layered implementation facilitates bar code scanning and decoding for any application: use it stand-alone with the included GUI and command line programs, easily integrate a bar code scanning widget into your Qt, GTK+ or PyGTK GUI application, leverage one of the script or programming interfaces (Python, Perl, C++) ...all the way down to a streamlined C library suitable for embedded use.
ZBar is licensed under the GNU LGPL 2.1 to enable development of both open source and commercial projects.
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