@wolf480pl @nytpu granted most #BarcodeScanners these days do #2D codes because theybliterally are a 480p60 camera connected to an embedded SoC or even ASIC and just spit out the scanned code as keyboard outputs via PS/2, USB or Bluetooth…
Libraries and tools like #zbar / #zbarimg / #zbarcam are old enough to buy beer in Germany if not liquor I'm not mistaken.
https://github.com/rxing-core/rxing is a better QR scanner than #zbarimg. Both of them are CLI (as well as library). rxing is written in Rust (a port of original Xing's java library).
It handles images with slightly tilted and rotated QR codes better.
rxing successfully scanned 2 qrcodes from the following image, while zbarimg couldn't extract a single one.
QR codes are normally scanned and decoded by phones. But not always, if you're a developer. Then you find a nifty way to do it on your laptop without camera's, and then write a blog about it.
https://vazaha.blog/en/26/how-to-scan-qr-codes-without-camera-or-phone
#foss #opensource #qr #zbarimg #flameshot #imagemagick #blog
Kevin Karhan 
dilawar
Lennart Hengstmengel
🐧DaveNull🐧 ☣️pResident Evil☣