3 ms·
I assume there's a bit more to it, but QR codes inherently support a "mask" that tells the scanner parts of the image to ignore. So you could do at least some
by tyingq 3y ago
I assume there's a bit more to it, but QR codes inherently support a "mask" that tells the scanner parts of the image to ignore. So you could do at least some of that with the mask. It's not real flexible, so there's perhaps other tricks also.
- bmicraft 3y agoI was under the assumption that the mask was just a short static pattern XORd over the data?
- CalebJohn 3y agoIt is, the QR code spec details a few specific masks that are available. The one which produces the best QR code is chosen (best in this case means most clear/easiest for a scanner to read. So, no large blocks of white or black). Wikipedia has a pretty good visual of this. https://en.m.wikipedia.org/wiki/QR_code#Encoding https://en.m.wikipedia.org/wiki/QR_code#Encoding