QArt – Pictures in QR code with no inherent errors

Other interesting technique is using halftones&#x2F;dithering to embed picture in readable QR code:<p>PDF paper: <a href="http:&#x2F;&#x2F;vecg.cs.ucl.ac.uk&#x2F;Projects&#x2F;SmartGeometry&#x2F;halftone_QR&#x2F;paper_docs&#x2F;halftoneQR_sigga13.pdf" rel="nofollow">http:&#x2F;&#x2F;vecg.cs.ucl.ac.uk&#x2F;Projects&#x2F;SmartGeometry&#x2F;halftone_QR&#x2F;...</a><p>Javascript demo: <a href="http:&#x2F;&#x2F;jsfiddle.net&#x2F;lachlan&#x2F;r8qWV&#x2F;" rel="nofollow">http:&#x2F;&#x2F;jsfiddle.net&#x2F;lachlan&#x2F;r8qWV&#x2F;</a>

Excellent post! Months ago when I saw gopher QR code I was wondering how is it possible to encode picture like that but found nothing.

It would be interesting to see traffic signs created this way. Readable both by humans and by machines from far away.

the article points to google code, is there another source? (gitlab, github, bitbucket, etc)