this post was submitted on 01 Oct 2024
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Lemmy Shitpost

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[โ€“] ChaoticNeutralCzech@feddit.org 5 points 2 months ago* (last edited 2 months ago) (3 children)

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:

๐ŸŸฅ๐ŸŸฅ๐ŸŸฅ๐ŸŸฅ
๐ŸŸฅ๐ŸŸฉ๐ŸŸฉ๐ŸŸฉ
๐ŸŸฅ๐ŸŸฉ๐ŸŸฉ๐ŸŸฉ
๐ŸŸฅ๐ŸŸฉ๐ŸŸฉ๐ŸŸฅ

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

[โ€“] bali10050@lemmy.world 4 points 2 months ago (1 children)

I recommend using a dedicated qr scanner instead of google lens, because even if it can scan qr codes, it isn't optimised for it. Sometimes it can't even detect a medium-sized qr code in a screenshot, and it looks like they haven't even implemented the full standard.

Here's a pretty good qr-reader I can recommend: https://play.google.com/store/apps/details?id=com.blogspot.aeioulabs.barcode

[โ€“] ChaoticNeutralCzech@feddit.org 9 points 2 months ago* (last edited 2 months ago) (1 children)

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.

[โ€“] bali10050@lemmy.world 2 points 2 months 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.

[โ€“] Fuck_u_spez_@sh.itjust.works 3 points 2 months ago (1 children)

I'm not sure if a hardware barcode scanner would like it but Google Lens can read it just fine.

[โ€“] ChaoticNeutralCzech@feddit.org 1 points 2 months ago* (last edited 2 months 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.

[โ€“] Passerby6497@lemmy.world 0 points 2 months 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.