OcrEngineType Enumeration

Summary

Specifies available OCR engine types.

Syntax

Objective-C

C++/CLI

Java

Python

[SerializableAttribute()] 
public enum OcrEngineType

typedef NS_ENUM(NSInteger, LTOcrEngineType) { 
 LTOcrEngineTypeLEAD = 0 
};

public enum OcrEngineType

[SerializableAttribute()] 
public enum class OcrEngineType

class OcrEngineType(Enum): 
   LEAD = 0 
   OmniPage = 1 
   OmniPageArabic = 2

Members

Value	Member	Description
0	LEAD	LEAD specifies the LEADTOOLS OCR Module - LEAD Engine. Internally, the OCR library inside Leadtools.Ocr.LEADEngine.dll is used.
		Note: The LEAD OCR engine is the only engine that can be used when targeting platforms other than Windows.
		For more information, refer to OCR Files to be Included With Your Application.

Remarks

An OcrEngineType enumeration member is passed as a parameter to the OcrEngineManager.CreateEngine method to determine the type of engine to use. When the engine is created successfully, the engine type will be store in the IOcrEngine.EngineType property.

Example

Java

using Leadtools; 
using Leadtools.Ocr; 
using Leadtools.Document.Writer; 
using Leadtools.Codecs; 
 
public void CreateEngineExample() 
{ 
   // Create an instance of the engine 
   using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD)) 
   { 
      // Start the engine using default parameters 
      ocrEngine.Startup(null, null, null, LEAD_VARS.OcrLEADRuntimeDir); 
 
      string tifFileName = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif"); 
      string pdfFileName = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.pdf"); 
 
      // Create an OCR document 
      using (IOcrDocument ocrDocument = ocrEngine.DocumentManager.CreateDocument()) 
      { 
         // Add a page to the document 
         IOcrPage ocrPage = ocrDocument.Pages.AddPage(tifFileName, null); 
 
         // Recognize the page 
         // Note, Recognize can be called without calling AutoZone or manually adding zones. The engine will 
         // check and automatically auto-zones the page 
         ocrPage.Recognize(null); 
 
         // Save the document we have as PDF 
         ocrDocument.Save(pdfFileName, DocumentFormat.Pdf, null); 
      } 
 
      // Shutdown the engine 
      // Note: calling Dispose will also automatically shutdown the engine if it has been started 
      ocrEngine.Shutdown(); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS23\Bin\Common\OcrLEADRuntime"; 
}

 
import static org.junit.Assert.assertTrue; 
 
import java.io.File; 
import java.io.IOException; 
 
import java.util.ArrayList; 
import java.util.List; 
import java.util.concurrent.ExecutionException; 
import java.util.concurrent.ExecutorService; 
import java.util.concurrent.Executors; 
import java.util.concurrent.Future; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
 
import leadtools.*; 
import leadtools.document.writer.DocumentFormat; 
import leadtools.ocr.*; 
 
 
public void OcrEngineManagerCreateEngineExample() { 
   final String OCR_LEAD_RUNTIME_DIR = "C:\\LEADTOOLS23\\Bin\\Common\\OcrLEADRuntime"; 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
   // Create an instance of the engine 
   OcrEngine ocrEngine = OcrEngineManager.createEngine(OcrEngineType.LEAD); 
 
   // Start the engine using default parameters 
   ocrEngine.startup(null, null, null, OCR_LEAD_RUNTIME_DIR); 
   ILeadStream leadStream = LeadStreamFactory.create("C:\\LEADTOOLS23\\Resources\\Images\\Ocr1.tif"); 
   String pdfFileName = combine(LEAD_VARS_IMAGES_DIR, "Ocr1.pdf"); 
 
   // Create an OCR document 
   OcrDocument ocrDocument = ocrEngine.getDocumentManager().createDocument(); 
 
   // Add a page to the document 
   OcrPage ocrPage = ocrDocument.getPages().addPage(leadStream, null); 
 
   // Recognize the page 
   // Note, Recognize can be called without calling AutoZone or manually adding 
   // zones. The engine will 
   // check and automatically auto-zones the page 
   ocrPage.recognize(null); 
 
   // Save the document we have as PDF 
   ocrDocument.save(pdfFileName, DocumentFormat.PDF, null); 
 
   assertTrue("File exists", (new File(pdfFileName)).exists()); 
   System.out.printf("Command run, file saved to %s", pdfFileName); 
 
   // Shutdown the engine 
   // Note: calling Dispose will also automatically shutdown the engine if it has 
   // been started 
   ocrEngine.shutdown(); 
}

Requirements

Target Platforms

Reference

Leadtools.Ocr Namespace

Files to be Included with Your Application

Programming with the LEADTOOLS .NET OCR

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Help Version 23.0.2024.4.19

Leadtools.Ocr Assembly

Introduction

Getting Started

Namespaces

Leadtools.Ocr Namespace

Assemblies