QR Codes: Difference between revisions
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{{headerbox}}'''QR Codes''' are two-dimensional barcode graphics that can encode arbitrary binary data and we use QR code stickers to label things at Noisebridge! | |||
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Stick one on a physical object encoding a link to a page that can be configured to 301 to arbitrary URLs (e.g. https://www.noisebridge.net/qr/07A72C23A7), and you get a system for [http://en.wikipedia.org/wiki/Hardlink_(homonymy) hardlinking] physical objects into cyberspace. | |||
==Documentation== | |||
* The Wikipedia page on [http://en.wikipedia.org/wiki/QR_Code QR Codes] is a decent overview. | |||
* [http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=43655 The ISO standard] (208.00 CHF, ~$180 USD) developed by the original manufacturer, [http://www.denso.co.jp/en/ Denso Wave]. | |||
* [http://www.denso-wave.com/qrcode/qrgene1-e.html Overview on Denso Wave's site] | |||
==Generators== | |||
* [http://zxing.appspot.com/generator/ QR Code Generator] from the [http://code.google.com/p/zxing/ Zxing Project] | |||
* Call the [http://code.google.com/apis/chart/types.html#qrcodes Google Chart API] with 'cht=qr'. | |||
==Software== | |||
* [http://code.google.com/p/zxing/ Zxing Project] appears to be a Google-blessed software library written in Java for processing one-dimensional and two-dimensional barcodes. It is written for use on mobile phones. | |||
* Snappr.net has an image-attched-to-email-to-text type gateway setup. snappr [at] snappr.net More info [http://www.snappr.net/index.php?option=com_content&view=article&id=51&Itemid=83&lang=en on their page] | |||
==Other 2D Encodings== | |||
* [http://www.parc.com/research/projects/dataglyphs/ Xerox PARC Dataglyphs] - Embedding binary data inside of image dithering. Neat trick. | |||
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| QR Codes are two-dimensional barcode graphics that can encode arbitrary binary data and we use QR code stickers to label things at Noisebridge! |
Stick one on a physical object encoding a link to a page that can be configured to 301 to arbitrary URLs (e.g. https://www.noisebridge.net/qr/07A72C23A7), and you get a system for hardlinking physical objects into cyberspace.
Documentation
- The Wikipedia page on QR Codes is a decent overview.
- The ISO standard (208.00 CHF, ~$180 USD) developed by the original manufacturer, Denso Wave.
- Overview on Denso Wave's site
Generators
- QR Code Generator from the Zxing Project
- Call the Google Chart API with 'cht=qr'.
Software
- Zxing Project appears to be a Google-blessed software library written in Java for processing one-dimensional and two-dimensional barcodes. It is written for use on mobile phones.
- Snappr.net has an image-attched-to-email-to-text type gateway setup. snappr [at] snappr.net More info on their page
Other 2D Encodings
- Xerox PARC Dataglyphs - Embedding binary data inside of image dithering. Neat trick.