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Re:Show HN: Visual Sudoku Solver in the Browser (With OpenCV... by iamflimflam1 on Tuesday August 20, 2024 @11:48AM (#41301109)
I made a similar thing a while back - works really well.

https://www.atomic14.com/2020/07/25/browser-ar-sudoku.html

You can see it in action here: https://sudoku.cmgresearch.com/

(assuming it still works - haven't tried it for a while).

Re:Show HN: Visual Sudoku Solver in the Browser (With OpenCV... by taiters_ on Tuesday August 20, 2024 @12:38PM (#41301562)
Nice! Yeah the puzzle detection works really well in your one. I'll need to have a read through your write up to get some pointers.
Re:Show HN: Visual Sudoku Solver in the Browser (With OpenCV... by taiters_ on Thursday August 22, 2024 @06:30PM (#41324855)
I tried the blur threshold approach you mention in your post, and it's giving much better results!

Great post btw, very detailed.