MRZCodeDetectionCommand Class

Summary

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

Syntax

Objective-C

C++/CLI

Java

Python

public class MRZCodeDetectionCommand : RasterCommand

@interface LTMRZCodeDetectionCommand : LTRasterCommand

public class MRZCodeDetectionCommand 
    extends RasterCommand

public ref class MRZCodeDetectionCommand : public RasterCommand

class MRZCodeDetectionCommand(RasterCommand):

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

Java

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:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.Test; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.MRZCodeDetectionCommand; 
 
 
public void mrzCodeDetectionCommandExample() { 
    final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
    RasterCodecs codecs = new RasterCodecs(); 
    codecs.setThrowExceptionsOnInvalidImages(true); 
 
    // Load an image 
    RasterImage mrzImage = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "MRZ_SAMPLE.jpg")); 
 
    // Detect MRZ zone 
    MRZCodeDetectionCommand command = new MRZCodeDetectionCommand(); 
    command.run(mrzImage); 
    LeadRect mrzZone = command.getMRZZone(); 
 
    // Set MRZ zone to image region 
    RasterRegion rgn = new RasterRegion(); 
    rgn.combine(mrzZone, RasterRegionCombineMode.SET); 
    mrzImage.setRegion(null, rgn, RasterRegionCombineMode.SET); 
 
    // Save image 
    String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "MRZ_SAMPLE_RESULT.jpg"); 
    codecs.save(mrzImage, outputFileName, RasterImageFormat.JPEG, 0); 
 
    assertTrue(new File(outputFileName).exists()); 
    System.out.println("Command run, image saved to " + outputFileName); 
}

Requirements

Target Platforms

Reference

MRZCodeDetectionCommand Members

Leadtools.ImageProcessing.Core Namespace

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Core Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Core Namespace

Assemblies