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246 points D4Ha | 2 comments | 17 Nov 24 18:26 UTC | HN request time: 0.414s | source

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Timwi ◴[18 Nov 24 00:57 UTC] No.42168742[source]▶

Unfortunately it seems that every online explanation of QR codes always leaves out the Reed-Solomon error code calculation. The author here describes it as “long, tedious, and not very interesting”, but since everyone seems to think that, it is now very hard to find.

replies(5): >>42169094 #>>42170320 #>>42170344 #>>42170889 #>>42170910 #

1. larsbrinkhoff ◴[18 Nov 24 06:52 UTC] No.42170344[source]▶

>>42168742 #

These two tutorials explain the error code calculations:

https://www.thonky.com/qr-code-tutorial/error-correction-cod...

https://dev.to/maxart2501/let-s-develop-a-qr-code-generator-...

replies(1): >>42182940 #

2. Timwi ◴[19 Nov 24 13:01 UTC] No.42182940[source]▶

>>42170344 (TP) #

Thank you so much! That's really helpful and enlightening.

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