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BarCodeReadPreprocessCommand Class

Summary

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

Syntax

Java

Objective-C

WinRT C#

C++

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

Public Class BarCodeReadPreprocessCommand  
   Inherits Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand 
   Implements Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

public sealed class BarCodeReadPreprocessCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand

@interface LTBarCodeReadPreprocessCommand : LTRasterCommand

public class BarCodeReadPreprocessCommand extends RasterCommand

function Leadtools.ImageProcessing.Core.BarCodeReadPreprocessCommand()

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

Example

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
    
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 = BarCodeReadPreprocessOptions.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; 
 
       
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 = BarCodeReadPreprocessOptions.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"; 
}