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JAB Code – A high-capacity 2D color bar code

github.com

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Re: JAB Code – A high-capacity 2D color bar code

#4

How well does it hold up in adverse conditions, like outdoors in bad weather, or dark light, or a drunk person trying to take the photo?

It doesn't appear to have anything to correct for orientation like the 3 corners in a QR code.

Edit: ok, found the docs/description of the finder patterns: https://imgur.com/a/ZXXLtQ0

Re: JAB Code – A high-capacity 2D color bar code

#5
post #4

How well does it hold up in adverse conditions, like outdoors in bad weather, or dark light, or a drunk person trying to take the photo?

It doesn't appear to have anything to correct for orientation like the 3 corners in a QR code. Edit: ok, found the docs/description of the finder patterns: https://imgur.com/a/ZXXLtQ0

> A JAB Code contains one master symbol and optionally multiple slave symbols. Master symbol contains four finder patterns located at the corners of the symbol, while slave symbol contains no finder pattern

Re: JAB Code – A high-capacity 2D color bar code

#7
In case anyone missed it, a very interesting link explaining how QR codes work was posted on HN a few days ago[1]. I wish there was some explanation like this on this JAB code and how exactly it gives high capacity over the b/w code.

[1] https://www.nayuki.io/page/creating-a-qr-code-step-by-step

Re: JAB Code – A high-capacity 2D color bar code

#10
post #3

Tried a few times with the "Scan" demo on https://jabcode.org/create/ using Firefox for Android, but it appears to just get stuck displaying a loading spinner. Seems to work in Chrome, so not sure what's wrong with the implementation to make it not work.

To add to this, I am getting vague error messages with any text of a certain length (longer than 100 characters or so) if I tweak any, or at least several, of the advanced settings.
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