Printing Keys and using OCR.
groups at caseyljones.net
Tue May 15 13:39:33 CEST 2007
>Does anyone :
> Know of a system that can take binary data and output an image to be
> printed out, that is then capable of extracting that binary data from
> an imperfect scan of the image.
The wiki page on barcodes
has a list of 2d barcodes including one proprietary one that can store
1MB of data per page. One funny application they suggested for it on
their website was to print a sound file of how to pronounce your name on
your business card.
There appears to be an open source project going for PDF417
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