I've been playing a bit with
QR Coding here in
Qata
R... It's an interesting little ditty of a means for coding and transferring information such as a web-page, phone number, SMS, or up to a 250 character text...
The black & white pattern within a square provides an entertaining medium to play and explore with, through which various
'what if' queries can be posed and tested. One can go a bit 'Alice in Wonderland' with the whole thing - splitting, scaling and positioning segments of the code-square at different locations which only match (form a coherent and unified image) when viewed from a specific point. It can be stretched and angled to form an anamorphic image (see
Holbein's Ambassadors) which needs to be read through a foreshortened view. It could thus even, as suggested in some of the images below, be used as promotional tools on painted rooftops or even city-blocks, where the code could be read from airplanes or even satellites, to promote and advertise various places or functions... Will the potentials for fun never cease..?!
A free QR Code reader can be downloaded for free through most smart-phones. A QR Code generator can be accessed by clicking
here...
Matching two, different scale, halves of a QR code...

Two halves of the QR Code split...
A roof top painted as as a QR-Code (to be read from an airplane)...
A few city blocks adjusted to accommodate a QR code (to be viewed from a plane, satellite, space)...
QR Code in Perspective - Click on the image and lean over your laptop or computer screen whilst aiming your smart-phone at the QR Code to 'neutralize' the perspective. This could be used on a street, airport, train-station, etc. to convey information...