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by kragen
3976 days ago
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So, even though this is kind of fake (it’s more like a hand-drawn UPC barcode alternative), a real hand-drawn QR-code alternative is something I’ve been thinking about doing for a while. In particular, I was thinking that matrix parity codes like the ones schoen at the EFF discovered in printer dots https://w2.eff.org/Privacy/printers/docucolor/ would be an ECC that’s practical to compute by hand, and then you could draw ECC-correctable matrix barcodes with a pencil. Has anybody done this? |
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