unable to read DataMatrix
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 12/100
- Issue type
- Bug
- Clarity
- Needs clarification
- Activity status
- Stale
- Tech stack
- csharp
- Domain
- computer-vision
Research direction
Start with the reader setup in the issue: a DecodingOptions with TryInverted, TryHarder and AssumeGS1, passed to a BarcodeReader with AutoRotate set to true. Reproduce against the three attached DataMatrix images, where the first decodes, the second decodes only after manual inversion and rotation, and the third fails. Comparing how the detector handles the inverted and rotated cases is where the work lies. Done would mean the third image decodes with AutoRotate enabled, which the issue does not yet show a path to.
Written by the indexing model from the issue text.
Description
I'm having hard time decoding a certain DM barcode.
-
this one is decoded just fine:
-
this one is decoded just after I invert and rotate the bitmap manually until i get the code:
-
but this one is not working:
this is the reader:
var options = new DecodingOptions()
{
TryInverted = true,
TryHarder = true,
AssumeGS1 = true,
PossibleFormats = new List()
{
BarcodeFormat.QR_CODE,
BarcodeFormat.CODE_39,
BarcodeFormat.CODE_93,
BarcodeFormat.CODE_128,
BarcodeFormat.CODABAR,
BarcodeFormat.DATA_MATRIX
}
};
var reader = new ZXing.BarcodeReader()
{
AutoRotate = true,
Options = options
};
zxingResult = reader.Decode(bitmap);
as you can see, the autoRotate=true, but the second barcode is decoded just when I rotate it manualy.
does anyone have an idea what can i do?
- Dominant language
- C#
- Stars
- 3.1k
- Forks
- 704
- Avg merge
- 13d 17h
- Merged PRs (30d)
- 2
Getting set up
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First steps
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Difficulty 3/5 1-2 days Newbie friendliness 42/100
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Difficulty 4/5 3-5 days Newbie friendliness 12/100
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