CODEWITHSUNDEEP
cameraqr-codezxingwebassembly
PuzzledDavid
PuzzledDavid

Reputation: 53

Detecting multiple QR codes with ZXing for javascript form camera

I'm using the code here: https://www.dynamsoft.com/codepool/html5-barcode-reader-javascript-webassembly.html to detect QR codes from camera. Everything is fine with a single QR code, but I want to be able to detect multiple QR codes so I change the code ZXing._decode_qr(decodePtr); to ZXing._decode_qr_multi(decodePtr); without success, it seems it detects only the first seen QR code.

That's weird because if instead I load (like here: https://github.com/yushulx/zxing-cpp-emscripten) an image with multiple QR codes and call ZXing._decode_qr_multi(decodePtr);, all QR codes are detected.

Can you help me, please? TIA

Upvotes: 2

Views: 2512

Answers (1)

PuzzledDavid
PuzzledDavid

Reputation: 53

Solved! The camera resolution was too low. Increasing the resolution fixed everything

Upvotes: 2

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