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Post AxMUTCJedLDuAEmBwe by [email protected] |
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More posts by [email protected] |
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Post #AxDjwvAMi7UUYIQJ4i by [email protected] |
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Yesterday at the MoMath MOVES conference, Erik Demaine discussed QR codes and s… |
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Post #AxDjww7ZA0qVVu7aLo by [email protected] |
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Just playing around. Here are a couple more that I think I like better. |
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Post #AxDjwwSTuFZmYluHx2 by [email protected] |
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@divbyzero Nice! You might be interested in the software I developed for this: … |
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Post #AxDjwwZDVCxotf3fRw by [email protected] |
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@edemaine Thanks! I made mine "by hand"—Adobe Illustrator + Photosh… |
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Post #AxDjwwgf3Wv1GkXc3M by [email protected] |
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@divbyzero @edemaine If each cell of the QR code is a 9x9 block of image pixels… |
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Post #AxDjwwo6bqsDdq1Yem by [email protected] |
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@divbyzero @edemaine it works!!the images is still kind of messed up but if i w… |
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Post #AxDjwwuqCoGFyjAw9g by [email protected] |
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@divbyzero @edemaine weirdly this is the second time i've solved the proble… |
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Post #AxDjwx2djoV2MupAJM by [email protected] |
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@divbyzero @edemaine I had a go at improving the error diffusion and I *think* … |
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Post #AxDjwx9jJSAeiu8pMW by [email protected] |
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@divbyzero @edemaine ok I did a bug fix and added gamma correction and can conf… |
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Post #AxDjwxHArm7r5zclxw by [email protected] |
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@andrewt @divbyzero @edemaine I came upon this a few years ago: |
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Post #AxDjwxVM13T5nyG64G by [email protected] |
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if anyone's interested in how this works:QR scanners generally only look at… |
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Post #AxDuEGVZc6ZpCxFhgm by [email protected] |
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@divbyzero Oooh, I really like the one on the left. I think regular people, who… |
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Post #AxDuEGcfBkFRYwZMjw by [email protected] |
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@grwster @divbyzero I wonder what happens if you use an image of a (different) … |
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Post #AxDuEGj2o1LtsjYSga by [email protected] |
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@robinhouston @divbyzero Hah, I guess it would correctly scan the code indicate… |
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Post #AxDuHGd7cL8ISEDMHI by [email protected] |
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@andrewt @divbyzero @edemaine this is the coolest thing ive seen in 2025. i don… |
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Post #AxDuLS2x72gj1LI8zw by [email protected] |
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@divbyzero That's really cool! |
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Post #AxDuMIUk6xobgah4XA by [email protected] |
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@divbyzero There's a nice paper from 2013 that does something similar: http… |
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Post #AxDuMIcBfHlo3gB18a by [email protected] |
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@csk Neat. Thanks! |
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Post #AxDuMmsX94ffv43UmW by [email protected] |
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@andrewt in case it's useful data, the first 2 scan on my phone (iOS) just … |
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Post #AxDuMmyYmfUYDksJAu by [email protected] |
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@andrewt @luna Interesting: they all decode ok on my iOS phone. I wonder what&#… |
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Post #AxDuQNNjspXc08MYF6 by [email protected] |
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@luna The last is a bit flaky on mine as well.TBH I think for real applications… |
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Post #AxDuQNUpSTDEM7gDIG by [email protected] |
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@andrewt @luna If God didn't want us to mutilate QR codes, why did he give … |
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Post #AxDuScZEOaKDg1oBxA by [email protected] |
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@icecolbeveridge Yeah! Even though he said it would work, it was still neat to … |
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Post #AxDuSz1gtSA7KfIEMq by [email protected] |
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@andrewt This is tremendous. Now I want to see a qr code version of the London … |
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Post #AxDuWHU6iq6dRs9nyy by [email protected] |
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@andrewt Talk for MathsJam?Tickets on general sale on Monday ...CC: @divbyzero … |
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Post #AxDuXqrWfrTTSarNS4 by [email protected] |
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@grwster @robinhouston @divbyzero ...and if that QR code itself contains an emb… |
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Post #AxDuaotgRAWuEZHhMO by [email protected] |
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@jernej__s @divbyzero @edemaine haha nice! yeah, that looks like much the same … |
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Post #AxDuc6JdA3E2Xv22Gu by [email protected] |
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@andrewt Absolutely amazing. ❤️ |
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Post #AxDuda9tgu6XONBYsC by [email protected] |
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@andrewt @divbyzero @edemaine I got it!!! The images hit me with bayer flashbac… |
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Post #AxDufAhzHjbT2TtAcC by [email protected] |
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@grwster @divbyzero That's what I would hope! It would be fun if it worked |
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Post #AxDufUqsOOb5VqCYFM by [email protected] |
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@OscarCunningham @luna I refuse to accept that a loving god was involved in the… |
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Post #AxE206hu3Z30OCmNSS by [email protected] |
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@robinhouston @andrewt I was pointing my phone’s camera at the QR code on my … |
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Post #AxIcseiUCThMUHCZIe by [email protected] |
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@edemaine @divbyzero Thanks I just tested your tool it works grate :heart_cyber: |
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Post #AxMUQGTGjElyBLsIfA by [email protected] |
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@divbyzeroAsking as someone with no deeper understanding of the topic, are thes… |
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Post #AxMUSvsTkbyjBJwGMi by [email protected] |
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I've put this into a more user-friendly interface so you can make your own … |
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Post #AxMUSw0dGIV5abkm4e by [email protected] |
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@andrewt Waw awesome !Is there a way to download easily the QR-code ? I’m on … |
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Post #AxMUSw6ettJxtIZaT2 by [email protected] |
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@Makaku oh, yeah, I should add that, good shoutedit: I have added a "downl… |
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Post #AxMUSwCgXU8qBzOOrQ by [email protected] |
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@andrewt The downloading is working but the QR-code doesn’t 😭 i’m unable… |
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Post #AxMUSwHeF26yRNiMb2 by [email protected] |
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@Makaku try making the code smaller? That usually helps me 🤷They are a bit f… |
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Post #AxMUTCJedLDuAEmBwe by [email protected] |
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@andrewtDefinitely test them in whatever medium they're going to be used.At… |
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Post #AxMUTCQOEIbwV7vZRY by [email protected] |
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@nyquildotorg oh no |
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Post #AxMUTOyrXxJfRW9GqG by [email protected] |
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@andrewt I've cloned the repo, but I get an error when I run it:Uncaught Re… |
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Post #AxMUTP4tBY8XkCy5Ee by [email protected] |
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@icecolbeveridge Sounds like the dependencies aren't installed? I've no… |
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Post #AxMUTPAup8xQ2tmtd2 by [email protected] |
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@andrewt I know next to nothing. I have just cloned and served in the directory… |
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Post #AxMUTPGaU3UiKURQTA by [email protected] |
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@icecolbeveridge Yeah — I used yarn but npm should work if you have that inst… |
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Post #AxMUTPLuAHkQayvfl2 by [email protected] |
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@andrewt Got it, thanks! |
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Post #AxMUTPRZpCHisZaCbA by [email protected] |
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@icecolbeveridge 🎉 |
