Leadtools.Ocr Getting Started

Summary

.NET
Java/Android
iOS and macOS

.NET

Redistributables Paths

Path Target Platform
<installdir>\Redist\DotNet4\Win32 x86 .NET 4 or 4.5
<installdir>\Redist\DotNet4\x64 x64 .NET 4 or 4.5

Dependencies

Library Description Dependencies
Leadtools.Ocr.dll OCR forms library

Leadtools.dll

Leadtools.Document.Writer.dll

Leadtools.Forms.Common.dll

Leadtools.Codecs.dll

NuGet PackageDescription
Leadtools.Ocr OCR Library

Sample Programs

Description Path Details
OCR Multi-Engine (Windows Forms) <installdir>\Examples\DotNet\<CS/VB>\OcrMultiEngineDemo

Demonstrates all of the LEADTOOLS OCR class library features.
This is the main OCR demo.

NOTE: This demo loads all document files as raster images and then
performs OCR. To see a demo that converts from document to
document without OCR/Rasterization, refer to

\Examples\DotNet\CS\DocumentConverterDemo
\Examples\DotNet\CS\DocumentViewerDemo

LEADTOOLS OCR Module - LEAD Engine demo (Windows Forms) <installdir>\Examples\DotNet\<CS/VB>\OcrDemo Demonstrates features of the LEADTOOLS OCR Module - LEAD Engine.
OCR Screen Capture demo (Windows Forms) <installdir>\Examples\DotNet\<CS/VB>\OcrScreenCaptureDemo Demonstrates how to OCR an area captured from the screen
using Screen Capture.
OCR Auto Recognize demo (Windows Forms)
<installdir>\Examples\DotNet\<CS/VB>\OcrAutoRecognizeDemo Demonstrates how to use the one-shot "Fire-and-forget" OCR auto
recognition capabilities.
OCR Modules demo (Windows Forms)
<installdir>\Examples\DotNet\<CS/VB>\OcrModulesDemo
Demonstrates the various OCR modules supported by the
LEADTOOLS OCR class library.
OCR Multi-threading demo (Windows Forms) <installdir>\Examples\DotNet\<CS/VB>\OcrMultiThreadingDemo Demonstrates how to use threads to simultaneously perform more than
one recognition operation at the same time.
OCR Zones Rubber Band demo (Windows Forms) <installdir>\Examples\DotNet\<CS/VB>\OcrZonesRubberBandDemo Demonstrates how to interactively add zones to OCR documents and modify them.
OCR Settings demo (Windows Forms) <installdir>\Examples\DotNet\<CS/VB>\OcrSettingsDemo Demonstrates the extra capabilities of the various supported OCR engines and how to use them.
OCR TWAIN Scanning demo (Windows Forms) <installdir>\Examples\DotNet\<CS/VB>\OcrTwainScanningDemo Demonstrates how to scan and recognize a single- or multiple-page
document at the same time.

Supported OCR Engines

OCR Engines Redistributables
  • LEAD
  • OmniPage
  • OmniPageArabic
See OCR Files to be Included with your Application

Java/Android

Redistributables Paths

Path Target Platform
<installdir>\Bin\Android\x86_64 (Android) x86_64 Android
<installdir>\Bin\Android\x86 (Android) x86 Android
<installdir>\Bin\Android\arm64-v8a (Android) arm64-v8a Android
<installdir>\Bin\Android\armeabi-v7a (Android) armeabi-v7a Android
<installdir>\Bin\Android\armeabi (Android) armeabi Android
<installdir>\Bin\CDLLVC10\Win32 (Windows) x86 Windows
<installdir>\Bin\CDLLVC10\x64 (Windows) x64 Windows
<installdir>\Bin\Lib\x86 (Linux) x86 Linux
<installdir>\Bin\Lib\x64 (Linux) x64 Linux

Dependencies

Library Description Jars Native Libraries
leadtools.ocr.jar OCR forms library

leadtools.codecs.jar

leadtools.jar

Android

libleadtools.codecs.so

libleadtools.ocr.so

libleadtools.so

iOS/macOS

Leadtools.Codecs.framework

Leadtools.framework

Leadtools.Ocr.framework

Linux

libltfil.so

libltkrn.so

libltocr.so

Windows

Ltfilu.dll

Ltfilx.dll

Ltkrnu.dll

Ltkrnx.dll

Sample Programs

Description Path Details
OCR demo (Android) <installdir>\Examples\Android\OcrDemo Demonstrates all the LEADTOOLS OCR class library features.
MICR demo (Android) <installdir>\Examples\Android\MicrDemo Performs fast and accurate Magnetic Ink Character Recognition on check book images, automatically detects
and extracts MICR E-13B text, and shows the extracted MICR line fields for the read MICR code.

Supported OCR Engines

OCR Engines Redistributables
  • LEAD
See OCR files to be included with your application

iOS and macOS

Redistributables Paths

Path Target Platform
<installdir>\Bin<Version>\Xcode\iOS iOS
<installdir>\Bin<Version>\Xcode\macOS macOS

Dependencies

Library Description Dependencies
Leadtools.Ocr.framework OCR forms library

Leadtools.Kernel.framework

Leadtools.framework

Leadtools.Codecs.Kernel.framework

Leadtools.Codecs.framework

Sample Programs

Description Path Details
OCR demo (iOS / macOS) <installdir>\Examples\Xcode\<iOS / macOS>\OcrDemo Demonstrates all of the LEADTOOLS OCR class library features.
MICR demo (iOS / macOS) <installdir>\Examples\Xcode\<iOS / macOS>\MicrDemo Performs fast and accurate Magnetic Ink Character Recognition on check book images, automatically detects
and extracts MICR E-13B text, and shows the extracted MICR line fields for the read MICR code.

Supported OCR Engines

OCR Engines Redistributables
  • LEAD
See OCR files to be included with your application

See Also

Cloud Services

Does your application require document recognition or conversion, but its implementation language is preventing you from using LEADTOOLS directly? Consider using the LEADTOOLS Cloud Services Web API instead. It is a high-powered and scalable Web API. Its hassle-free interface can be used to integrate advanced OCR, barcode, MICR, and document conversion into any application.

References

Introduction

Programming with LEADTOOLS .NET OCR

An Overview of OCR Recognition Modules

Creating an OCR Engine Instance

Starting and Shutting Down the OCR Engine

OCR Spell Language Dictionaries

Working with OCR Languages

Working with OCR Pages

Working with OCR Zones

Recognizing OCR Pages

OCR Confidence Reporting

OCR Engine-specific Settings

OCR Tutorial - Working with Pages

OCR Tutorial - Recognizing Pages

OCR Tutorial - Adding and Painting Zones

OCR Tutorial - Working with Recognition Results

OCR Tutorial - Scanning to Searchable PDF

OCR Languages and Spell Checking

Using OMR in LEADTOOLS .NET OCR

Multi-Threading with LEADTOOLS OCR

Version History

Leadtools.Ocr Assembly Changes

Help Version 20.0.2019.4.11
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Leadtools.Ocr Assembly