I read the comments and watched the video, I did a test, Took a QR code, put a couple 3/16 size dots on it with a permanent marker (after I tested the code for an initial read with my iphone camera) . It could not read the code after I put the dots on it. Good idea that I will probably test tomorrow.
Appreciate the impulse, but those codes are more resilient than that. A couple seconds with a small spray can would have done more good and taken less time. Or a big sticker over it. You want to cost them time and money to fix it or to just give up.
Stick a new QR code over it that goes to some other, more interesting site.
I can think of a few. More truthful AND more informative. The Holodomor, the "holo-hoax", the Kalergi plan, StuffBlackPeopleDontLike, etc...
Keez Movies.
QR Codes have built in error correction bits. The large squares are 'locating' sections. You will have to fill in a lot more dots than just those and depending on the format, quite a lot more dots.
As other poster said, it would be more effective to print out a large format qr code to cover this one.
I knew it couldn't be that simple.
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