by Will Glynn
Ruby bindings for ZBar, a barcode recognition library.
require 'zbar' ZBar::Image.from_jpeg(File.read('test.jpg')).process => [#<Zbar::Symbol:0x10147c668 @addon="", @data="9876543210128", @location= [...], @quality=15, @symbology="EAN-13">]
Add to your Gemfile:
$ [sudo] gem install zbar
You'll also need the zbar C library to make it work. This might be available from your package manager:
$ sudo apt-get install libzbar0 # on Debian or Ubuntu $ sudo emerge zbar # on Gentoo $ brew install zbar # on Mac OS X with Homebrew
Alternately, install from source at zbar.sf.net/.
Doesn't expose all ZBar functionality, including:
No video functions
No low-level interfaces (scanner, decoder)
Additionally, there is a zbar <= 0.10 issue with JPEG decoding; see lib/zbar/jpeg.rb for more. You can check your ZBar::JPEG.bugged? status if you're curious. Otherwise, just try using it, and see if you get a warning on stderr.
Fork the project.
Make your feature addition or bug fix.
Add tests for it. This is important so I don't break it in a future version unintentionally.
Commit. Don't change VERSION, or if you do, do it in a separate commit.
Send me a pull request. Bonus points for topic branches.
Watch the Travis-CI build status on your pull request. Fix any problems.
Copyright © 2010-2013 Will Glynn. See LICENSE for details.