⚡ Making QR Code Art

⚡ Making QR Code Art - Felix B

Рет қаралды 7,937

UWCS - University of Warwick Computing Society

Жыл бұрын

QR Codes. How do they work, and how can we alter the generation algorithm to get almost any pixel art we want, while making sure the link is still valid? The answer? Maths, and lots of it. But also some interesting masking and error correcting techniques, which is what we'll discuss.
Talk by Felix B.
Blog Post: research.swtch.com/qart
Demo: research.swtch.com/qr/draw

Пікірлер: 19

@probablykeegan Жыл бұрын

Time to find out if any of these QR codes link to a certain dQw4w9WgXcQ

@TheRustyCrab Жыл бұрын

that has to be the most memorized string of letters and numbers on the planet 💀

@eldattackkrossa9886 Жыл бұрын

this is very cool, now i wish i had some occupation where i have to use qr codes so i could use custom ones

@peterkilian9100 Жыл бұрын

I want to go to this university

@tutacat 11 ай бұрын

happy birthday keegan

@mergenstudios8779 Жыл бұрын

lol that was good

@lithium534 Жыл бұрын

So let me get this strait, If I generate a QR code with a 30% redundant error I can remove the center section and it will still work? So by using the masks I can delete whatever it masks. So many question from this.... I would really like to know how much can be removed and still be detected without trial and error for every square.

@Imperial_Squid Жыл бұрын

"Luckily the QR code spec lets us smush two formats together" Fucking WHAT?! Why was that ever implemented?? Don't get me wrong, I'm thankful it is, it's very useful but what bizarre niche use case was the motivation behind that idea??

@Imperial_Squid Жыл бұрын

Also, brb, making a project where you can feed it an image and some text and it'll auto solve for a valid QR code

@warwickcomputing Жыл бұрын

I hope you like linear algebra

@felixbee Жыл бұрын

Good question... Since it was originally made to label machined parts, perhaps they had a system in mind where part of their codes were alphanumeric and part were solely numeric? So that they could minimise the size of the resulting code. Can't say for sure though.

@jamariobeard7213 6 ай бұрын

How u use logo n QR code to website

@OnlyTheQuack Жыл бұрын

Is there a tool to make these?

@warwickcomputing Жыл бұрын

There's a tool to generate smaller ones (check the description), although we haven't found any online (yet) for the larger QR code versions like v20 and up - might try and see if we can make one ourselves unless someone beats us to it

@Jason9637 Жыл бұрын

@@warwickcomputing Is that a challenge?

@v0xl Жыл бұрын

@@warwickcomputing there's also one that does color and arbitrary size qr codes looks pretty cool