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https://kylezhe.ng/posts/crafting_qr_codes#image-techniques links directly to that section and skips the fluff about how QR codes work
I highly recommend checking out https://cgv.cs.nthu.edu.tw/projects/Recreational_Graphics/MQ... which uses word clouds with QR codes and looks crazy cool
This is cool, but what's the use of error correction when you're deliberately introducing noise? In my experience, these art-y qr codes are more challenging to scan than traditional plain variants, especially in real life scenarios where you don't always have a perfectly clear image
Dithering: https://mathstodon.xyz/@andrewt/115035614385265413
Mondrian: https://mathstodon.xyz/@OscarCunningham/115049490241833844
Hand Drawn: https://mathstodon.xyz/@andrewt/115056697540191327
Bad Apple: https://pony.social/@luna/115057532794342459
White Noise: https://pony.social/@luna/115058126613306302
Title reminded me of these https://mp.weixin.qq.com/s/i4WR5ULH1ZZYl8Watf3EPw
Over on Mastodon we've just recently been having some fun with these techniques: Dithering: https://mathstodon.xyz/@andrewt/115035614385265413 Mondrian: https://mathstodon.xyz/@OscarCunningham/115049490241833844 Hand Drawn: https://mathstodon.xyz/@andrewt/115056697540191327 Bad Apple: https://pony.social/@luna/115057532794342459 White Noise: https://pony.social/@luna/115058126613306302
I've been writing about (and using) QR codes for a couple of decades. I love the innovation that happens within the bounds of the specification. One problem that I foresee with this is that they don't look like QR codes. People are now used to looking for a specific monochrome pattern to point their phone towards. There was a competitor to QR - MS Tag - which tried something similar. Their codes were able to be integ…
This is cool, but what's the use of error correction when you're deliberately introducing noise? In my experience, these art-y qr codes are more challenging to scan than traditional plain variants, especially in real life scenarios where you don't always have a perfectly clear image
The error correction is actually what enables the artistic elements - QR codes with high EC levels (H=30%) can have up to 30% of their modules modified while remaining scannable, which is exactly what these image-embedding techniques exploit.