BarCodeReadPreprocessCommand Class

Detects the type of the barcode in the image, and binarizes (make it black and white) the image in preparation for the recognition process.

Object Model

Syntax

C#
Visual Basic
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public class BarCodeReadPreprocessCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class BarCodeReadPreprocessCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As BarCodeReadPreprocessCommand

public sealed class BarCodeReadPreprocessCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Core.BarCodeReadPreprocessCommand()

public ref class BarCodeReadPreprocessCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

Example

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools

Imports Leadtools.Codecs

Imports Leadtools.ImageProcessing.Core


Leadtools.ImageProcessing.Core.BarcodeExample 
      Public Sub BarcodeExampleCommandExample()
       ' Load an image
       Dim Codecs As RasterCodecs = New RasterCodecs()
       Codecs.ThrowExceptionsOnInvalidImages = True

       Dim image As RasterImage = Codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "\MIXED.tif"))

       Dim command As BarCodeReadPreprocessCommand = New BarCodeReadPreprocessCommand()
       command.Options = BarcodeBinarizationOptions.UseAutoDocumentBinarization
       command.Run(image)

       MessageBox.Show("Barcode type is:" & command.BarcodeType & "\n" & "Barcode location is: (" & command.BarcodeLocation.Left.ToString() & ", " & command.BarcodeLocation.Top.ToString() & ", " & command.BarcodeLocation.Right.ToString() & ", " & command.BarcodeLocation.Bottom.ToString() & ", ")
   End Sub


Public NotInheritable Class LEAD_VARS

Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"

End Class

using Leadtools;

using Leadtools.Codecs;

using Leadtools.ImageProcessing.Core;


Leadtools.ImageProcessing.Core.BarcodeExample 
     public void BarcodeExampleCommandExample()
     {
         // Load an image
         RasterCodecs codecs = new RasterCodecs();
         codecs.ThrowExceptionsOnInvalidImages = true;

         RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"MIXED.tif"), 24, CodecsLoadByteOrder.BgrOrGrayOrRomm, 1, 1);

         BarCodeReadPreprocessCommand command = new BarCodeReadPreprocessCommand();
         command.Options = BarcodeBinarizationOptions.UseAutoDocumentBinarization;
         command.Run(image);


         MessageBox.Show("Barcode type is:" + command.BarcodeType + "\n" + "Barcode location is: (" + command.BarcodeLocation.Left.ToString() + ", " + command.BarcodeLocation.Top.ToString() + ", " + command.BarcodeLocation.Right.ToString() + ", " + command.BarcodeLocation.Bottom .ToString()+ ", ");
     }


static class LEAD_VARS

{

public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";

}

Requirements

Target Platforms

Reference

BarCodeReadPreprocessCommand Members
Leadtools.ImageProcessing.Core Namespace