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MRZCodeDetectionCommand Class

Summary

Automatically detects a machine-readable passport (MRZ) zone in a document image.

Syntax

C++

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

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

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

Remarks

This command searches inside a given LeadRect zone (set using SearchingZone property) and detects an MRZ code.
Users can get the detected zone by calling the MRZZone property.

Example

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Core 
 
    
Public Sub MRZCodeDetectionCommandExample() 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
   'Load an image 
   Dim MRZImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "MRZ_SAMPLE.jpg")) 
 
   'Detect MRZ zone 
   Dim command As MRZCodeDetectionCommand = New MRZCodeDetectionCommand() 
   command.Run(MRZImage) 
   Dim mrzzone As LeadRect = command.MRZZone 
 
   ' Set MRZ zone to image region 
   Dim rgn As RasterRegion = New RasterRegion() 
   rgn.Combine(mrzzone, RasterRegionCombineMode.Set) 
   MRZImage.SetRegion(Nothing, rgn, RasterRegionCombineMode.Set) 
 
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; 
using Leadtools.ImageProcessing.Core; 
 
       
public void MRZCodeDetectionCommandExample() 
{ 
    RasterCodecs codecs = new RasterCodecs(); 
    codecs.ThrowExceptionsOnInvalidImages = true ; 
    //Load an image 
    RasterImage MRZImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "MRZ_SAMPLE.jpg")); 
 
    //Detect MRZ zone 
    MRZCodeDetectionCommand command = new MRZCodeDetectionCommand(); 
    command.Run(MRZImage); 
    LeadRect mrzzone = command.MRZZone ; 
 
    // Set MRZ zone to image region 
    RasterRegion rgn = new RasterRegion(); 
    rgn.Combine(mrzzone, RasterRegionCombineMode.Set); 
    MRZImage.SetRegion(null, rgn, RasterRegionCombineMode.Set); 
 
} 
 
static class LEAD_VARS 
{ 
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}