3 ms·
You’re even understating the impact of the quiet zone: at version 1, the QR code itself is only 52% of the code + quiet zone area (21**2 modules out of 29**2).
by dbaupp 5y ago
You’re even understating the impact of the quiet zone: at version 1, the QR code itself is only 52% of the code + quiet zone area (21**2 modules out of 29**2). Almost twice as bad! :)
That said, in practice, a quiet zone of one module or even only partial quiet zones (around the position patterns) seems to work: https://qrworld.wordpress.com/2011/08/09/the-quiet-zone/ https://qrworld.wordpress.com/2011/08/09/the-quiet-zone/
- lifthrasiir 5y agoAh, yes, it is even worse when you compare areas. I think the quiet zone is a recommendation and not a strict requirement, so being able to reduce or share the quiet zone is not very surprising. I'm more curious that the valid QR code is bounded with finder patterns so the quiet zone doesn't seem necessary (those patterns are optimized for linear scanning by maintaining 1:1:3:1:1 black-white-b-w-b ratios across all axes, so you don't need any additional quiet zone in principle).