====== JOYCE QR-code ======

A QR-code is the most abundant form of a 2D-barcode ([[http://de.wikipedia.org/wiki/QR-Code|wikipedia]]).
QR-codes can be read by e.g. smartphone apps, programs or special scanners. 
They can provide text information but also links to websites, e-mail adresses, telphone numbers etc.

This one:

{{:sites:joyce:joyce_qr_code.png?100|go to www.geomet.uni-koeln.de/joyce/}}

links to the JOYCE website. Scanned with a smart phone it will provide the web adress [[http://www.geomet.uni-koeln.de/joyce/]] and eventually directly direct to it. It might be used on poster and talks.

There are lots of websites which allow you to generate QR-codes. The one above has been generated on [[http://goqr.me/de/#t=url]].

Some providers allow to include Logos wich mostly means you have to register and sometimes pay for a designer...

An alternative is [[http://research.swtch.com/qr/draw|this page]]: It uses the reduntant information for error correction in the QR-code to include a logo. Using a [[sites:joyce:qr-code:JOYCE_high_contrast|high contrast version]] of the JOYCE logo could look like this:

{{:sites:joyce:joyce_qr_code_art_3.png?110|go to www.geomet.uni-koeln.de/joyce/}}