Don't decode QR_CODE about zxing.net HOT 3 OPEN

Can you post the QRCode image itself that fails to decode?

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i fixed that. Now, i push in zxing crop image and that worked. But anyway, why zxing recognize multiformat, if i push only qr_code type ?

from zxing.net.

i fixed that. Now, i push in zxing crop image and that worked. But anyway, why zxing recognize multiformat, if i push only qr_code type ?

Well, with the reader.Options.PossibleFormats = new BarcodeFormat[] { BarcodeFormat.QR_CODE, BarcodeFormat.EAN_8, BarcodeFormat.UPC_E }; you explicitly look for EAN_8 as well. The reason you are getting a false positive EAN_8 is because of the quality of the EAN_8 detector. I assume the one used by ZXing.NET is still the same as the one implemented in the original Java ZXing library. I'm the maintainer of the zxing-cpp project and have reimplemented the EAN_8 detector/decoder (among others) which resulted in this specific case in a substantially reduced false positive rate. There is a .NET wrapper available as well: https://www.nuget.org/packages/ZXingCpp

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