Comments (2)
Zxing doesn't guarantee to find every barcode. Especially if the barcode is rotated the library has some issues.
You should restrict the formats which are looked for.
var reader = new BarcodeReader();
reader.Options.PossibleFormats = new List<BarcodeFormat> { BarcodeFormat.CODE_128};
It prevents that you will find false positives.
Try to capture the barcodes unrotated, if possible, use an continuesly image stream.
It improves the user experience.
The zxing library itself was originally developed for mobile device scenarios which continuesly scanning for codes while the user focuses the camera.
Feel free to provide a PR which improves the scanning result for rotated codes.
from zxing.net.
Thanks for the feedback. I did restrict the format to Code 128 but then the decoding would fail on the angled version.
In my testing this Zxing library has done a good job with angled images, just not with Code 128. I've tried other online barcode decoders and they don't have any problem with the angled image I've been testing with so I think there could be room for improvement. I might post a PR specific to Code 128 since I've not seen issues in my testing with other formats.
Unfortunately in my use case I will only have still images to work from that have been previously captured so I need the best decoding I can get from imperfect images.
from zxing.net.
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