Generating a QR code with only ARM Assembly

Re:Generating a QR code with only ARM Assembly by dmitrygr on Wednesday September 08, 2021 @01:29PM (#28460321)

The spec is quite clear (i was able to implement creating datamatrix codes of all sizes/shaped from the spec in C in a day). Take a look at it. It also covers how to decode them. You might be able to write it yourself and learn a lot in the process.

It goes into great depth on suggested methods to decode. See section 9 "Reference decode algorithm for Data Matrix" in ISO/IEC 16022 second edition 2006-09-15, which you'll need to BUY...

I've uploaded for you to view here: https://mega.nz/file/ctQCxDaQ#Y7-XyMeR2e8nJQ79cJfWKmlfwxPm2Q...

Because, fuck ISO for paywalling knowledge!

[ Parent | on HN ]

Re:Generating a QR code with only ARM Assembly by codetrotter on Wednesday September 08, 2021 @01:37PM (#28460436)

Hos do you correct for angles around the axes x, y and z? That’s the hard part I imagine

[ Parent | on HN ]

Re:Generating a QR code with only ARM Assembly by wizzwizz4 on Wednesday September 08, 2021 @02:17PM (#28461050)

I found another paper: https://www.hindawi.com/journals/mpe/2013/848276/

[ Parent | on HN ]

Re:Generating a QR code with only ARM Assembly by gregsadetsky on Wednesday September 08, 2021 @04:42PM (#28462787)

And here's a Matlab implementation based on that paper:

https://github.com/lapauwThomas/QR_reader

Would be curious to see how it performs.

[ Parent | on HN ]

Re:Generating a QR code with only ARM Assembly by dmitrygr on Wednesday September 08, 2021 @01:46PM (#28460591)

I updated the comment you replied to with more info :)

[ Parent | on HN ]

Re:Generating a QR code with only ARM Assembly by nayuki on Wednesday September 08, 2021 @03:14PM (#28461734)

Thanks, this is going to be a fun read. =)

[ Parent | on HN ]