Unable to scan the UPC-E

[Oktay28]

Describe the bug The scanner can't find the UPC-E barcode. It works with the rest of the formats that are set, but not with UPC_E. Tried on multiple devices, non of them succeeded

 const hints = new Map()
 const formats = [
       BarcodeFormat.UPC_A,
       BarcodeFormat.UPC_E,
       BarcodeFormat.UPC_EAN_EXTENSION,
 ]

 hints.set(DecodeHintType.POSSIBLE_FORMATS, formats)

 const scanner = new BrowserMultiFormatReader(hints)
 const stream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: 'environment' }})
 const result = await scanner.decodeOnceFromStream(stream, 'video').catch(() => null)

Screenshots This is what I am trying to scan

Additional context Library version 0.20.0

[teckel12]

Confirmed, couldn't scan any UPC-E barcodes, not just the above barcode, but others I made with different methods.

[rob313663]

The code in the screenshot can be scanned with a Zebra TC52 Android device.

[rob313663]

When I copy the screenshot into a paint program and zoom in, it is obvious it is antialiased, not a good thing to do with barcodes.

This is better:

[github-actions[bot]]

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