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mebjas / html5-qrcode

A cross platform HTML5 QR code reader. See end to end implementation at: https://scanapp.org
https://qrcode.minhazav.dev
Apache License 2.0
5.03k stars 973 forks source link

The scan #782

Open Vintotcutie opened 1 year ago

Vintotcutie commented 1 year ago

My phone's QR code scanner can scan the image but your scanner doesn't, it seems like you're trying to scan it very fast that the image couldn't display its full resolution so that your scanner couldn't scan it because the image were blurred. Please let the image display its full resolution first before scanning.

toperrrrrrrr commented 1 year ago

You can adjust the frames per second, you can lower it down if you want to make the scanning slower.

image

stevstrong commented 1 year ago

I have the same problem. I think the difference is that device native camera app uses auto-focus, while this scanner doesn't. Bringing a small QR code image to be scanned closer to the camera lens makes the image blurry and the scan fails. I set the rate to 10, but it also fails with 5 fps. Can you please comment on this? How can I improve scanning quality?

EDIT Would it be possible to enable auto-focus per default?