On Feb 15, 2008, at 4:35 PM, Benjamin M. Schwartz wrote:
> As you are probably aware, it is possible to read barcodes from the
> camera, using software analysis.
We have code in git that encodes arbitrary (but size-constrained) data
as a redundant datamatrix barcode and shows it on the screen, and code
that performs image analysis from a camera capture when one XO is
pointed at another with such a barcode on the screen to decode the
original data:
<http://dev.laptop.org/git?p=projects/barcode;a=tree>
The original purpose was to facilitate a physical public key exchange
("digital introduction") by holding two laptops up to one another.
--
Ivan Krstić <[EMAIL PROTECTED]> | http://radian.org
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