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A comment on Show HN: I open sourced the QR designer from my failed startup. Parent comment

Re:Show HN: I open sourced the QR designer from my failed st... by bmicraft on Tuesday May 30, 2023 @10:43PM (#36133890)
I was under the assumption that the mask was just a short static pattern XORd over the data?
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Re:Show HN: I open sourced the QR designer from my failed st... by CalebJohn on Wednesday May 31, 2023 @02:13AM (#36135084)
It 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

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