VintaSoft Barcode .NET SDK 16.1: Documentation for .NET developer
Vintasoft.Barcode.QualityTests Namespace / ISO15415QualityTest Class / AdditionalGrades Property
Syntax Remarks Example Requirements SeeAlso
In This Topic
AdditionalGrades Property (ISO15415QualityTest)
In This Topic
Gets the additional grades that depends from barcode symbology.
Syntax
Remarks

Additional grades for Data Matrix barcode (defined in ISO 16022 Annex M):

  • FixedPatternDamage.L1 - Grade of segment L1 (see below).
  • FixedPatternDamage.L2 - Grade of segment L2 (see below).
  • FixedPatternDamage.QZL1 - Grade of segment QZL1 (see below).
  • FixedPatternDamage.QZL2 - Grade of segment QZL2 (see below).
  • FixedPatternDamage.Segment_X_Y_Top - Grade of top alignment patterns (clock track and solid area) of data region located by specified indexes (X, Y).
  • FixedPatternDamage.Segment_X_Y_Right - Grade of right alignment patterns (clock track and solid area) of data region located by specified indexes (X, Y).
  • FixedPatternDamage.ClockAndSolidArea - Grade of all alignment patterns of data regions.
  • FixedPatternDamage.AG - Grade of average grade of L1, L2, QZL1, QZL2, ClockAndSolidArea.

Segment L1 is the vertical portion of the L and extends to the module in the quiet zone adjacent to the L corner. Segment L2 is the horizontal portion of the L and extends to the module in the quiet zone adjacent to the L corner. Segments QZL1 and QZL2 are the portions of the quiet zone adjacent to L1 and L2 respectively and extend one module beyond the end of L1 and L2 respectively, furthest from the corner.

Additional grades for Han Xin Code Matrix barcode (defined in specification):
  • FixedPatternDamage.A1 - Grade of 11x11 in symbol left top corner (finder pattern and quiet zone).
  • FixedPatternDamage.A2 - Grade of 11x11 in symbol right top corner (finder pattern and quiet zone).
  • FixedPatternDamage.A3 - Grade of 11x11 in symbol right bottom corner (finder pattern and quiet zone).
  • FixedPatternDamage.A4 - Grade of 11x11 in symbol left bottom corner (finder pattern and quiet zone).
  • FixedPatternDamage.B - Grade of Alignment Pattern and Assistant Alignment Pattern.
  • StructuralInformationRegion.Region1 - Grade of Structural Information Region 1 (left top and right top).
  • StructuralInformationRegion.Region2 - Grade of Structural Information Region 1 (left bottom and right bottom).
  • StructuralInformationRegion.Region - Grade of Structural Information Region 1 and Region 2.

Example

Here is an example that demonstrates how to test print quality of matrix 2D barcodes (Aztec, DataMatrix, QR, MicroQR and Han Xin Code) and multi-row 2D barcodes (PDF417, PDF417Compact and MicroPDF417):

   
   
Imports Vintasoft.Imaging   
   
Imports Vintasoft.Barcode   
Imports Vintasoft.Barcode.BarcodeInfo   
Imports Vintasoft.Barcode.QualityTests   
   
''' <summary>
''' Test that shows how to test the print quality of matrix 2D barcodes
''' (Aztec, DataMatrix, Han Xin Code, QR and MicroQR).
''' </summary>
Class ISO15415QualityTestMatrixExample   
   
    ''' <summary>
    ''' Runs the test.
    ''' </summary>
    Public Shared Sub Test(filename As String)   
        ' load image with barcode from file
        Using barcodeImage As VintasoftBitmap = ImageCodecs.[Default].Decode(filename)   
            ' read barcodes from image and test the print quality of 2D barcodes
            ReadBarcodesAndTestBarcodePrintQuality(barcodeImage)   
        End Using   
    End Sub   
   
    ''' <summary>
    ''' Reads barcodes from image and tests the print quality of 2D barcodes.
    ''' </summary>
    Public Shared Sub ReadBarcodesAndTestBarcodePrintQuality(imageWithBarcodes As VintasoftBitmap)   
        ' create the barcode reader
        Using reader As New BarcodeReader()   
            ' specify that reader must collect information for quality test
            reader.Settings.CollectTestInformation = True   
   
            ' specify that reader must search for Aztec, DataMatrix, Han Xin Code, QR and MicroQR barcodes only
            reader.Settings.ScanBarcodeTypes = BarcodeType.Aztec Or BarcodeType.DataMatrix Or BarcodeType.QR Or BarcodeType.MicroQR Or BarcodeType.HanXinCode   
   
            ' read barcodes
            Dim barcodeInfos As IBarcodeInfo() = reader.ReadBarcodes(imageWithBarcodes)   
   
            ' for each found barcode
            For i As Integer = 0 To barcodeInfos.Length - 1   
                ' test print quality of barcode using ISO 15415 test
                Dim test As New ISO15415QualityTest()   
                test.CalculateGrades(DirectCast(barcodeInfos(i), BarcodeInfo2D), imageWithBarcodes)   
   
                ' print results of ISO 15415 test
   
                Console.WriteLine(String.Format("[{0}] {1}", barcodeInfos(i).BarcodeType, barcodeInfos(i).Value))   
                Console.WriteLine(String.Format("Decode                                  : {0}", test.Decode))   
                Console.WriteLine(String.Format("Unused error correction                 : {0} ({1})", test.UnusedErrorCorrection, test.UnusedErrorCorrection.ValueText))   
                Console.WriteLine(String.Format("Symbol contrast                         : {0} ({1})", test.SymbolContrast, test.SymbolContrast.ValueText))   
                Console.WriteLine(String.Format("Axial nonuniformity                     : {0} ({1})", test.AxialNonuniformity, test.AxialNonuniformity.ValueText))   
                Console.WriteLine(String.Format("Grid nonuniformity                      : {0} ({1})", test.GridNonuniformity, test.GridNonuniformity.ValueText))   
                Console.WriteLine(String.Format("Modulation                              : {0}", test.Modulation))   
                Console.WriteLine(String.Format("Fixed pattern damage                    : {0}", test.FixedPatternDamage))   
                For Each name As String In test.AdditionalGrades.Keys   
                    Console.WriteLine(String.Format("{0}: {1}", name.PadRight(40, " "C), test.AdditionalGrades(name)))   
                Next   
                If test.QuietZone IsNot Nothing Then   
                    Console.WriteLine(String.Format("Quiet zone                              : {0} ({1})", test.QuietZone.GradeText, test.QuietZone.ValueText))   
                End If   
                Console.WriteLine(String.Format("Distortion angle (informative)          : {0}", test.DistortionAngle.ValueText))   
                Console.WriteLine(String.Format("-------------Scan grade                 : {0}", test.OverallSymbolGrade))   
                Console.WriteLine()   
            Next   
        End Using   
    End Sub   
End Class   
   
''' <summary>
''' Test that shows how to test the print quality of multi-row 2D barcodes
''' (PDF417, PDF417Compact and MicroPDF417).
''' </summary>
Class ISO15415QualityTestMultiRowExample   
   
    ''' <summary>
    ''' Runs the test.
    ''' </summary>
    Public Shared Sub Test()   
        ' load image with barcode from file
        Using barcodeImage As VintasoftBitmap = ImageCodecs.[Default].Decode("test1.jpg")   
            ' read barcodes from image and test the print quality of 2D barcodes
            ReadBarcodesAndTestBarcodePrintQuality(barcodeImage)   
        End Using   
    End Sub   
   
    ''' <summary>
    ''' Reads barcodes from image and tests the print quality of 2D barcodes.
    ''' </summary>
    ''' <param name="imageWithBarcodes"></param>
    Public Shared Sub ReadBarcodesAndTestBarcodePrintQuality(imageWithBarcodes As VintasoftBitmap)   
        ' create the barcode reader
        Using reader As New BarcodeReader()   
            ' specify that reader must collect information for quality test
            reader.Settings.CollectTestInformation = True   
   
            ' specify that reader must search for PDF417, PDF417Compact and MicroPDF417 barcodes only
            reader.Settings.ScanBarcodeTypes = BarcodeType.PDF417 Or BarcodeType.PDF417Compact Or BarcodeType.MicroPDF417   
   
            ' read barcodes
            Dim barcodeInfos As IBarcodeInfo() = reader.ReadBarcodes(imageWithBarcodes)   
   
            ' for each found barcode
            For i As Integer = 0 To barcodeInfos.Length - 1   
                ' test print quality of barcode using ISO 15415 test
                Dim test As New ISO15415QualityTest()   
                test.CalculateGrades(DirectCast(barcodeInfos(i), BarcodeInfo2D), imageWithBarcodes)   
   
                ' print results of ISO 15415 test
   
                Console.WriteLine(String.Format("[{0}] {1}", barcodeInfos(i).BarcodeType, barcodeInfos(i).Value))   
                Console.WriteLine(String.Format("Decode                 : {0}", test.Decode))   
                Console.WriteLine(String.Format("Unused error correction: {0} ({1})", test.UnusedErrorCorrection, test.UnusedErrorCorrection.ValueText))   
                If test.StartPatternTestGrade IsNot Nothing Then   
                    Console.WriteLine(String.Format("Start pattern test:      {0}", test.StartPatternTestGrade))   
                End If   
                If test.CenterPatternTestGrade IsNot Nothing Then   
                    Console.WriteLine(String.Format("Center pattern test:     {0}", test.CenterPatternTestGrade))   
                End If   
                If test.CenterPatternTestGrade IsNot Nothing Then   
                    Console.WriteLine(String.Format("Stop pattern test:       {0}", test.CenterPatternTestGrade))   
                End If   
                Console.WriteLine(String.Format("Codeword yield:          {0}", test.CodewordYield))   
                Console.WriteLine(String.Format("Codeword print quality:  {0}", test.CodewordPrintQualityGrade))   
                If test.QuietZone IsNot Nothing Then   
                    Console.WriteLine(String.Format("Quiet zone:              {0} ({1})", test.QuietZone, test.QuietZone.ValueText))   
                End If   
                Console.WriteLine(String.Format("Distortion angle:        {0}", test.DistortionAngle.ValueText))   
                Console.WriteLine(String.Format("-------------Scan grade: {0}", test.OverallSymbolGrade))   
                Console.WriteLine()   
            Next   
        End Using   
    End Sub   
End Class


using System;

using Vintasoft.Imaging;

using Vintasoft.Barcode;
using Vintasoft.Barcode.BarcodeInfo;
using Vintasoft.Barcode.QualityTests;

/// <summary>
/// Test that shows how to test the print quality of matrix 2D barcodes
/// (Aztec, DataMatrix, Han Xin Code, QR and MicroQR).
/// </summary>
class ISO15415QualityTestMatrixExample
{

    /// <summary>
    /// Runs the test.
    /// </summary>
    public static void Test(string filename)
    {
        // load image with barcode from file
        using (VintasoftBitmap barcodeImage = ImageCodecs.Default.Decode(filename))
        {
            // read barcodes from image and test the print quality of 2D barcodes
            ReadBarcodesAndTestBarcodePrintQuality(barcodeImage);
        }
    }

    /// <summary>
    /// Reads barcodes from image and tests the print quality of 2D barcodes.
    /// </summary>
    public static void ReadBarcodesAndTestBarcodePrintQuality(VintasoftBitmap imageWithBarcodes)
    {
        // create the barcode reader
        using (BarcodeReader reader = new BarcodeReader())
        {
            // specify that reader must collect information for quality test
            reader.Settings.CollectTestInformation = true;

            // specify that reader must search for Aztec, DataMatrix, Han Xin Code, QR and MicroQR barcodes only
            reader.Settings.ScanBarcodeTypes =
                BarcodeType.Aztec | BarcodeType.DataMatrix |
                BarcodeType.QR | BarcodeType.MicroQR | BarcodeType.HanXinCode;

            // read barcodes
            IBarcodeInfo[] barcodeInfos = reader.ReadBarcodes(imageWithBarcodes);

            // for each found barcode
            for (int i = 0; i < barcodeInfos.Length; i++)
            {
                // test print quality of barcode using ISO 15415 test
                ISO15415QualityTest test = new ISO15415QualityTest();
                test.CalculateGrades((BarcodeInfo2D)barcodeInfos[i], imageWithBarcodes);

                // print results of ISO 15415 test

                Console.WriteLine(string.Format("[{0}] {1}",
                    barcodeInfos[i].BarcodeType, barcodeInfos[i].Value));
                Console.WriteLine(string.Format("Decode                                  : {0}", test.Decode));
                Console.WriteLine(string.Format("Unused error correction                 : {0} ({1})", test.UnusedErrorCorrection, test.UnusedErrorCorrection.ValueText));
                Console.WriteLine(string.Format("Symbol contrast                         : {0} ({1})", test.SymbolContrast, test.SymbolContrast.ValueText));
                Console.WriteLine(string.Format("Axial nonuniformity                     : {0} ({1})", test.AxialNonuniformity, test.AxialNonuniformity.ValueText));
                Console.WriteLine(string.Format("Grid nonuniformity                      : {0} ({1})", test.GridNonuniformity, test.GridNonuniformity.ValueText));
                Console.WriteLine(string.Format("Modulation                              : {0}", test.Modulation));
                Console.WriteLine(string.Format("Fixed pattern damage                    : {0}", test.FixedPatternDamage));
                foreach (string name in test.AdditionalGrades.Keys)
                    Console.WriteLine(string.Format("{0}: {1}", name.PadRight(40, ' '), test.AdditionalGrades[name]));
                if (test.QuietZone != null)
                    Console.WriteLine(string.Format("Quiet zone                              : {0} ({1})", test.QuietZone.GradeText, test.QuietZone.ValueText));
                Console.WriteLine(string.Format("Distortion angle (informative)          : {0}", test.DistortionAngle.ValueText));
                Console.WriteLine(string.Format("-------------Scan grade                 : {0}", test.OverallSymbolGrade));
                Console.WriteLine();
            }
        }
    }
}

/// <summary>
/// Test that shows how to test the print quality of multi-row 2D barcodes
/// (PDF417, PDF417Compact and MicroPDF417).
/// </summary>
class ISO15415QualityTestMultiRowExample
{

    /// <summary>
    /// Runs the test.
    /// </summary>
    public static void Test()
    {
        // load image with barcode from file
        using (VintasoftBitmap barcodeImage = ImageCodecs.Default.Decode("test1.jpg"))
        {
            // read barcodes from image and test the print quality of 2D barcodes
            ReadBarcodesAndTestBarcodePrintQuality(barcodeImage);
        }
    }

    /// <summary>
    /// Reads barcodes from image and tests the print quality of 2D barcodes.
    /// </summary>
    /// <param name="imageWithBarcodes"></param>
    public static void ReadBarcodesAndTestBarcodePrintQuality(VintasoftBitmap imageWithBarcodes)
    {
        // create the barcode reader
        using (BarcodeReader reader = new BarcodeReader())
        {
            // specify that reader must collect information for quality test
            reader.Settings.CollectTestInformation = true;

            // specify that reader must search for PDF417, PDF417Compact and MicroPDF417 barcodes only
            reader.Settings.ScanBarcodeTypes =
                BarcodeType.PDF417 | BarcodeType.PDF417Compact | BarcodeType.MicroPDF417;

            // read barcodes
            IBarcodeInfo[] barcodeInfos = reader.ReadBarcodes(imageWithBarcodes);

            // for each found barcode
            for (int i = 0; i < barcodeInfos.Length; i++)
            {
                // test print quality of barcode using ISO 15415 test
                ISO15415QualityTest test = new ISO15415QualityTest();
                test.CalculateGrades((BarcodeInfo2D)barcodeInfos[i], imageWithBarcodes);

                // print results of ISO 15415 test

                Console.WriteLine(string.Format("[{0}] {1}",
                    barcodeInfos[i].BarcodeType, barcodeInfos[i].Value));
                Console.WriteLine(string.Format("Decode                 : {0}", test.Decode));
                Console.WriteLine(string.Format("Unused error correction: {0} ({1})", test.UnusedErrorCorrection, test.UnusedErrorCorrection.ValueText));
                if (test.StartPatternTestGrade != null)
                    Console.WriteLine(string.Format("Start pattern test:      {0}", test.StartPatternTestGrade));
                if (test.CenterPatternTestGrade != null)
                    Console.WriteLine(string.Format("Center pattern test:     {0}", test.CenterPatternTestGrade));
                if (test.CenterPatternTestGrade != null)
                    Console.WriteLine(string.Format("Stop pattern test:       {0}", test.CenterPatternTestGrade));
                Console.WriteLine(string.Format("Codeword yield:          {0}", test.CodewordYield));
                Console.WriteLine(string.Format("Codeword print quality:  {0}", test.CodewordPrintQualityGrade));
                if (test.QuietZone >= 0)
                    Console.WriteLine(string.Format("Quiet zone:              {0} ({1})", test.QuietZone, test.QuietZone.ValueText));
                Console.WriteLine(string.Format("Distortion angle:        {0}", test.DistortionAngle.ValueText));
                Console.WriteLine(string.Format("-------------Scan grade: {0}", test.OverallSymbolGrade));
                Console.WriteLine();
            }
        }
    }
}


Requirements

Target Platforms: .NET 11; .NET 10; .NET 9; .NET 8; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

See Also