QR code codec library

[yuanshengyong]

Hello, the QR code codec library you use? I'm learning about it. Can you provide your implementation plan?

[sz3]

I'm not sure I understand your question. But maybe I can offer some random thoughts that might help?

• cimbar is significantly different from QR codes -- there is very little in common (perhaps code that checks for the finder pattern, if that)
• for understanding how cimbar works, the python prototype is probably the easiest way: https://github.com/sz3/cimbar
  • I've been meaning to write up various details on the implementation in a series of blog posts/articles, but I haven't gotten around to it yet. :thinking:
  • I'd say the key concepts are: image hashing, forward error correction (reedsolomon), and fountain codes (wirehair).

Let me know if any of that was helpful. :slightly_smiling_face:

[yuanshengyong]

I want to know whether you implement putting data into pictures, using a third-party library or by yourself

[sz3]

libcimbar does most of the work itself. But it does use opencv to manipulate the image pixels.

[yuanshengyong]

Thank you for your answer。