Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
Get HideMyAss! VPN, PC Mag's Top 10 VPNs of 2016 for 55% off for a Limited Time ×
Graphics Software

Printed Embedded Data GUIs 111

n7lyg writes: "Xerox PARC has come up with a way to embed data in printed images that involves using something called DataGlyphs. A DataGlyph is essentially an oblong pixel that takes the value of zero or one depending on whether it is printed angled to the left or right. Printed at sufficiently fine resolution, this is no different from ordinary offset printing effects using circular pixels, but when scanned by a computer allows recovery of arbitrary data embedded in the images or text of the printed page. An article in this month's IEEE Computer contains a lot of interesting applications of this technology, including a system to allow teachers to create printed tests and lab assignments with embedded DataGlyphs to allow automatic generation of graded and annotated results." I think we've done an article on this before, but I don't see it in the archives...
This discussion has been archived. No new comments can be posted.

Printed Embedded Data GUIs

Comments Filter:

"In order to make an apple pie from scratch, you must first create the universe." -- Carl Sagan, Cosmos

Working...