Barcode BarCodeReader DecodeType.DataMatrix

Aspose.BarCode Product Family
1

I’m having trouble scanning images and reading barcodes DataMatrix. and rarely read the code sometimes, how to solve the problem?

My Code
BarCodeReader reader = new BarCodeReader(bitmap, DecodeType.DataMatrix);
reader.QualitySettings = QualitySettings.HighQualityDetection;
reader.QualitySettings.AllowComplexBackground = true;
reader.QualitySettings.AllowDatamatrixIndustrialBarcodes = true;
reader.QualitySettings.AllowWhiteSpotsRemoving = true;
reader.QualitySettings.FastScanOnly = true;
reader.QualitySettings.AllowDecreasedImage = true;
reader.QualitySettings.AllowDetectScanGap = true;
reader.QualitySettings.AllowSaltAndPaperFiltering = true;
reader.QualitySettings.UseOldBarcodeDetector = true;
Console.WriteLine(reader.ReadBarCodes());
foreach (BarCodeResult result in reader.ReadBarCodes())
{
Console.WriteLine("Code Text: " + result.CodeText + " Symbology: " + result.CodeType);
string[] array = result.CodeText.Split(’-’);
}
}

Thank you

2

@menphurk,

Could you please zip and attach your barcode (image) file, we will check it soon.

3

WIAScannerLotto.zip (9.6 MB)
scaneb43resa.umi.jpg (177.8 KB)

4

@Amjad_Sahi :smiley:

5

@menphurk,

Thanks for the sample project and barcode image.

I did test using the following sample code and barcode image, it works ok.
e.g.
Sample code:

string bitmap1 = "e:\\test2\\barcode1\\scaneb43resa.umi.jpg";
            Aspose.BarCode.BarCodeRecognition.BarCodeReader reader12 = new Aspose.BarCode.BarCodeRecognition.BarCodeReader(bitmap1, Aspose.BarCode.BarCodeRecognition.DecodeType.AllSupportedTypes);
            reader12.QualitySettings = Aspose.BarCode.BarCodeRecognition.QualitySettings.HighQualityDetection;
            reader12.QualitySettings.AllowComplexBackground = true;
            reader12.QualitySettings.AllowDatamatrixIndustrialBarcodes = true;
            reader12.QualitySettings.AllowWhiteSpotsRemoving = true;
            reader12.QualitySettings.FastScanOnly = true;
            reader12.QualitySettings.AllowDecreasedImage = true;
            reader12.QualitySettings.AllowDetectScanGap = true;
            reader12.QualitySettings.AllowSaltAndPaperFiltering = true;
            reader12.QualitySettings.UseOldBarcodeDetector = true;
            Console.WriteLine("length is:" + reader12.ReadBarCodes().Length);
            foreach (Aspose.BarCode.BarCodeRecognition.BarCodeResult result in reader12.ReadBarCodes())
            {
            Console.WriteLine("Code Text: " + result.CodeText + " Symbology: " + result.CodeType);
            string[] array = result.CodeText.Split('-');
            }

it reads two barcodes as following:

length is:2
Code Text: 64-01-31-373754-0672 Symbology: DataMatrix
Code Text: 2101317446209706 Symbology: Interleaved2of5

Do you see any issue with above results?

6

@Amjad_Sahi Image resolution: 399.9992 DPI
Image resolution: 399.9992 DPI
Image Width: 1855
Image Height: 900
Aspose.BarCode.BarCodeRecognition.BarCodeResult[]
length is:0

I test barcode length = 0

Read some barcode, some don’t.

1641843318619.jpg (101.6 KB)

7

I test again but image original. it read barcode found. Before not read barcode ??

1641843420180.jpg (98.7 KB)

8

The error suggests that it occurred in “System.Runtime.ComException” and not in Aspose.BarCode for .NET API.

I get code text and symbology for your provided picture “scaneb43resa.umi.jpg”.

In short, I could not reproduce the issue using my sample code, it also works ok when DecodeType.DataMatrix. To resolve your issue, we need to reproduce it, so could you create a separate sample code (runnable) with barcode image using only Aspose.BarCode API and provide us. We will check your issue soon.