System information (version)

• OpenCV => 4.3
• Operating System / Platform => All
• Compiler => All

Detailed description

Inspired by theGSoC idea, I'd like to implement the QR Code decoder and encoder in OpenCV without 3rd party dependencies. This could resolve#17152 .

Should the new code overwrite the existing decode function or should it go into opencv_contrib with a new name? Any other suggestions or requirements? I'd like to use this issue to track progress.

Steps to reproduce

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues,
  answers.opencv.org, Stack Overflow, etc and have not found solution
• I updated to latest OpenCV version and the issue is still there
• There is reproducer code and related data files: videos, images, onnx, etc