A side benefit of the Graffyard post – I fell over the ZXing decoder. Not needed in the wild, but if you’re wandering the web and see a QRCode – or if you’re testing stuff – it could be quite useful. In fact, I plan on using it tonight to test pictures of meltybead codes.
Step one – find a QRCode on the web:
Step three – go to http://zxing.org/w/decode.jspx and paste the location. Click ‘submit query’.
The QRCode does not have to be as pristine as our example – this decodes just fine:
I am using QR Codes to preserve graffiti for posterity by photographing the graffiti before it is removed. After the graffiti has been cleaned off by the local authorities or building owner i place a QR Code in the exact location which resolves to an image of the original. In that way a mobile phone with a QR-Code Reader can be used to travel back in time.
Reminds me of a similar project – one to embed QRCodes that link to street art. Where did I see that…? >grin< One interesting enhancement that occurs to me – the ability to page through various versions of the surface in question – a time-stream of modifications/tags/etc.
@Spyboy comments, “But the QR code IS graffiti too then. An augmented reality app that overlays the graffiti on the clean surface would better.” First and foremost – agreed. A couple of caveats though:
- The QRCode approach is do-able. No RFID xmitter/receiver needed, no GPS fix required, no AR app installed. Point your phone at the meta-graffiti and away you go. It’s important to keep in mind that we in the US are way behind in cell phone kulturny – QRCode readers are almost a given in Japan and very common in Europe.
- I like the idea of a human-detectable (if – obviously- not human-readable) cue. The code is an indicator – ‘something is/was here’.
The ‘AR app on a clean surface’ gets me thinking – will the next gen tag battles be waged by folks with good tech chops trying to subvert each other’s AR data?
I knew that JY (aka tikaro) had pioneered QRCode needlepoint, but it had slipped my mind just how self-referentially awesome his project was:
This is the QRcode needlepoint that got posted in BoingBoing in 2007, and enjoyed brief stardom in the NY Times.
I sent the stitched needlepoint QRcode top to Amanda at Woolworks NYCand she sewed it up into a little velvet box pillow.
Woolworks are also the folks that stitched up the NY Post covers for Brigid Berlin.
Having come up with a viable (meltybeads!) tiling scheme, it’s time to officially launch! If anyone wants to deploy a mediated toynbee tile in their neighborhood, fantastic. If you’d let me know, with a picture and a location, even better. My tile dropping will have to wait on warmer weather but you can expect daffodils and QRCodes to bloom simultaneously up here.
To assist – an engriddened toynbee code:
The abridged version of what the project is all about: QR code tiles that lead you to a page with random pictures of Toynbee tiles. For a more complete explanation, click here (or on About above or in the right margin). I’m hoping that someone may decide to install a mediated toynbee QR code tile in their neck of the woods…
As you can see from the post below, I’ve been experimenting with Perler (aka melty) beads. The starter kit I bought didn’t have enough black and white beads to finish the QRCode and I didn’t want to buy any bulk bags until I’d proven the concept so everything waited until today, when I swung by the local craft store and bought a mixed refill bag. Voila!
I don’t think my cell phone camera/scanner SW copes well with low-light conditions – it wouldn’t scan in late afternoon ambient light and I had trouble scanning a QRCode in a movie theater lobby (dim) recently. At least, I hope that’s why scanning was temperamental; more testing wll be done tomorrow.