VintaSoft Barcode .NET SDK 14.3: Documentation for .NET developer
Vintasoft.Barcode.QualityTests Namespace / ISO15415QualityTest Class
Members Object Syntax Remarks Example Hierarchy Requirements SeeAlso
In This Topic
    ISO15415QualityTest Class
    In This Topic
    ISO/IEC 15415 barcode print quality test for 2D barcodes.
    Object Model
    BarcodeInfo2D ISO15416QualityTest ISO15416QualityTest ISO15416QualityTest ISO15416QualityTest ISO15415QualityTest
    Syntax
    'Declaration
    
    Public Class ISO15415QualityTest
    
    
    public class ISO15415QualityTest
    
    
    public __gc class ISO15415QualityTest
    
    
    public ref class ISO15415QualityTest
    
    
    Remarks

    Test can be used for testing the print quality of 2D matrix barcodes (Aztec, DataMatrix, QR Code, Micro QR Code, Han Xin Code). The algorithm of test is based on ISO/IEC 15415. Test allows to evaluate the barcode's print quality using the following parameters:


    Also test can be used for testing the print quality of 2D multi-row barcodes with cross-row scanning ability (PDF417, PDF417Compact, MicroPDF417). The algorithm of test is based on ISO/IEC 15415. Test allows to evaluate the barcode's print quality using the following parameters:

    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 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}", GradeToString(test.DecodeGrade)))   
                    Console.WriteLine(String.Format("Unused error correction: {0} ({1}%)", GradeToString(test.UnusedErrorCorrectionGrade), test.UnusedErrorCorrection))   
                    If test.StartPatternTestGrade <> ISO15415QualityGrade.Unavailable Then   
                        Console.WriteLine(String.Format("Start pattern test:      {0}", GradeToString(test.StartPatternTestGrade), test.StartPatternTestGrade))   
                    End If   
                    If test.CenterPatternTestGrade <> ISO15415QualityGrade.Unavailable Then   
                        Console.WriteLine(String.Format("Center pattern test:     {0}", GradeToString(test.CenterPatternTestGrade), test.CenterPatternTest))   
                    End If   
                    If test.CenterPatternTestGrade <> ISO15415QualityGrade.Unavailable Then   
                        Console.WriteLine(String.Format("Stop pattern test:       {0}", GradeToString(test.CenterPatternTestGrade), test.CenterPatternTestGrade))   
                    End If   
                    Console.WriteLine(String.Format("Codeword yield:          {0}", GradeToString(test.CodewordYieldGrade), test.CodewordYieldGrade))   
                    Console.WriteLine(String.Format("Codeword print quality:  {0}", GradeToString(test.CodewordPrintQualityGrade), test.CodewordPrintQualityGrade))   
                    If test.QuietZone >= 0 Then   
                        Console.WriteLine(String.Format("Quiet zone:              {0} ({1} %)", GradeToString(test.QuietZoneGrade), test.QuietZone))   
                    End If   
                    Console.WriteLine(String.Format("Distortion angle:        {0}�", test.DistortionAngle))   
                    Console.WriteLine(String.Format("-------------Scan grade: {0}", GradeToString(test.ScanGrade)))   
                    Console.WriteLine()   
                Next   
            End Using   
        End Sub   
       
        ''' <summary>
        ''' Converts ISO15415 quality grade into string value.
        ''' </summary>
        Private Shared Function GradeToString(grade As ISO15415QualityGrade) As String   
            Return String.Format("{0}({1})", CInt(grade).ToString(), grade)   
        End Function   
       
    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 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}",
                        GradeToString(test.DecodeGrade)));
                    Console.WriteLine(string.Format("Unused error correction: {0} ({1}%)",
                        GradeToString(test.UnusedErrorCorrectionGrade), test.UnusedErrorCorrection));
                    if (test.StartPatternTestGrade != ISO15415QualityGrade.Unavailable)
                        Console.WriteLine(string.Format("Start pattern test:      {0}",
                            GradeToString(test.StartPatternTestGrade), test.StartPatternTestGrade));
                    if (test.CenterPatternTestGrade != ISO15415QualityGrade.Unavailable)
                        Console.WriteLine(string.Format("Center pattern test:     {0}",
                            GradeToString(test.CenterPatternTestGrade), test.CenterPatternTest));
                    if (test.CenterPatternTestGrade != ISO15415QualityGrade.Unavailable)
                        Console.WriteLine(string.Format("Stop pattern test:       {0}",
                            GradeToString(test.CenterPatternTestGrade), test.CenterPatternTestGrade));
                    Console.WriteLine(string.Format("Codeword yield:          {0}",
                        GradeToString(test.CodewordYieldGrade), test.CodewordYieldGrade));
                    Console.WriteLine(string.Format("Codeword print quality:  {0}",
                        GradeToString(test.CodewordPrintQualityGrade), test.CodewordPrintQualityGrade));
                    if (test.QuietZone >= 0)
                        Console.WriteLine(string.Format("Quiet zone:              {0} ({1} %)",
                            GradeToString(test.QuietZoneGrade), test.QuietZone));
                    Console.WriteLine(string.Format("Distortion angle:        {0}°",
                        test.DistortionAngle));
                    Console.WriteLine(string.Format("-------------Scan grade: {0}",
                        GradeToString(test.ScanGrade)));
                    Console.WriteLine();
                }
            }
        }
    
        /// <summary>
        /// Converts ISO15415 quality grade into string value.
        /// </summary>
        static string GradeToString(ISO15415QualityGrade grade)
        {
            return string.Format("{0}({1})", ((int)grade).ToString(), grade);
        }
    
    }
    
    

    Inheritance Hierarchy

    System.Object
       Vintasoft.Barcode.QualityTests.ISO15415QualityTest

    Requirements

    Target Platforms: .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

    See Also