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How do I segment this QR code from the white background using opencv (imgur.com)
submitted 3 weeks ago* (last edited 3 weeks ago) by thickertoofan@lemm.ee to c/python@programming.dev
2 comments fedilink hide all child comments

cross-posted from: https://lemm.ee/post/59714239

Some custom filter kernel to average out values from a chunk of pixels with some kind of "border aware" behaviour?

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[-] SpaceNoodle@lemmy.world 6 points 3 weeks ago

Square it up and crop the image, or just scan it and re-encode the content.

[-] eager_eagle@lemmy.world 4 points 3 weeks ago

scanning and re-encoding is the way if you don't care about the exact image or pattern

this post was submitted on 28 Mar 2025
11 points (100.0% liked)

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