PrettyQrcode

generate prtty qrcode

Yes

ImageMagicky

http://www.imagemagick.org/

install on Mac OS

brew install ImageMagick

install on Ubuntu

sudo apt-get install imagemagick libmagickwand-dev

Add this line to your application's Gemfile:

gem install 'pretty_qrcode'

And then execute:

$ bundle

Or install it yourself as:

$ gem install pretty_qrcode

default version is 4, which is not enough for a url like 'https://github.com/dongqs/pretty_qrcode'. In this case, try a bigger version like 5 or 6.

$ pretty_qrcode input.jpg output.jpg 'hello world' [version] [correction_level]

This program is a simplified implementation based on

http://cgv.cs.nthu.edu.tw/Projects/Recreational_Graphics/Halftone_QRCodes/

1. Fork it ( https://github.com/[my-github-username]/pretty_qrcode/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request