Zxing : Qr Codes

http://code.google.com/p/zxing/

Reconhecimento de Barra de Códigos (QrCodes) é agora um Projeto open-source vinculada ao Google!!! (Com uso em celulares)

From the Google website:

ZXing (pronounced “zebra crossing”) is an open-source, multi-format 1D/2D barcode reader library implemented in Java. Our goal is to support decoding of QR Codes, Data Matrix, and the UPC family of 1D barcodes. It will provide clients for J2ME, J2SE, and Android.

Why? There are several great readers out there, and there are bits of open-source code already for decoding, but not both at the same time. We want everyone to have access to some great source code to play with, so we decided we’d try an experiment, and open up our in-progress effort. Maybe some of it will be useful to you — maybe you can help improve it.

“Version 0.1.” Everything that’s there, works, even if it could be improved. But not everything that we want to include is there, not by a long shot. We figured it best to release ZXing early while still in development.

Currently working:

1. UPC support
2. QR Code support

Some key features are still to-be-implemented:

1. Data Matrix decoding
2. Support for advanced JSRs