Dithered QR Codes

#1

Post by jmusall » Sat, Aug 08, 2026, 11:05 PM UTC

Re: Dithered QR Codes

#2

Post by jmusall » Sat, Aug 08, 2026, 11:16 PM UTC

Coincidentally came across this after reading a comment [1] under the recent post on _for-sale DNS records, visiting milk.com and scrolling through the owner's Mastodon

[1] https://news.ycombinator.com/item?id=49224882

Re: Dithered QR Codes

#3

Post by Zecc » Sun, Aug 09, 2026, 1:32 AM UTC

I recognize the domain name from playing some of his daily puzzles, namely Ronin and Cell Tower.

https://www.andrewt.net/puzzles/

Re: Dithered QR Codes

#4

Post by mentat » Sun, Aug 09, 2026, 1:39 AM UTC

This made me wonder if you could do it with color and apparently you can: https://1mentat.github.io/qr-code-shenanigans/

Re: Dithered QR Codes

#5

Post by BobbyTables2 » Sun, Aug 09, 2026, 2:22 AM UTC

Nice writeup!

Only needs a Rick Astley QR code (;->

Re: Dithered QR Codes

#6

Post by ideasphere » Sun, Aug 09, 2026, 2:50 AM UTC

Is that Lena with Sean Connery’s face??

Re: Dithered QR Codes

#7

Post by OscarCunningham » Sun, Aug 09, 2026, 2:52 AM UTC

By the same author: https://mathstodon.xyz/@andrewt/115056697540191327

Re: Dithered QR Codes

#8

Post by eru » Sun, Aug 09, 2026, 3:05 AM UTC

ideasphere wrote: post #6

Is that Lena with Sean Connery’s face??

https://mortenhannemose.github.io/lena/ I suspect.

Re: Dithered QR Codes

#9

Post by OscarCunningham » Sun, Aug 09, 2026, 3:08 AM UTC

BobbyTables2 wrote: post #5

Nice writeup! Only needs a Rick Astley QR code (;->

https://www.reddit.com/r/Damnthatsinteresting/comments/ublxt...

Re: Dithered QR Codes

#10

Post by zahrevsky » Sun, Aug 09, 2026, 3:09 AM UTC

You can also run animations in QR codes: https://cgv.cs.nthu.edu.tw/Projects/Recreational_Graphics/Ha...

So, technically, you can run Doom inside a QR code?