• ChaoticNeutralCzech@feddit.org
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      1 month ago

      Does it really scan when both timing patterns (zebra stripes between the three corner “squares”) are interrupted?

      Edit: Not even Google Lens can scan it. (Edit edit: worked fine with screenshot.) Next time, avoid the red regions when putting logos etc. on mid-size (3+1 “squares”) QR codes:

      🟥🟥🟥🟥
      🟥🟩🟩🟩
      🟥🟩🟩🟩
      🟥🟩🟩🟥

      You can rotate the code of course but not flip it.

        • ChaoticNeutralCzech@feddit.org
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          1 month ago

          Not open source, which is a red flag for me. There are QR scanner&generator apps on F-Droid, and you can check the source code that they do NOT send the scan result to some server and do NOT sneakily take a pic of you with the front camera.

          Here is what you should do for security around QR codes.

          In cases when privacy isn’t important (here, Google can match my Google and Lemmy usernames, and I leave a public comment), you can use Google Lens (in browser!) and crop the area of focus, and unlike most QR readers that only apply a linear transform (perspective correction), it works for QR codes on bent surfaces.

          • Séra Balázs@lemmy.world
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            1 month ago

            I have been using the one I use for 10 years, but the one you sent looks pretty good too. Being open source is a green flag for me too, when I started using mine there were no good open-source qr-readers, that’s why I went with this one.

        • ChaoticNeutralCzech@feddit.org
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          1 month ago

          Google Lens is indeed one of the best, and it failed for me with direct image upload (incl. transparency). It worked with a screenshot so maybe the size threw it off.

      • Passerby6497@lemmy.world
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        1 month ago

        Not even Google Lens can scan it

        Might be you, I just used lens to check the QR code man and it detected it just fine on my pixel 8.