TesseractOcrEngine Class

Provides programatic access and control of the Tesseract OCR engine.

Inheritance Hierarchy

SystemObject
DevScope.Ocr.Tesseract.WindowsTesseractOcrEngine

Namespace: DevScope.Ocr.Tesseract.Windows
Assembly: DevScope.Ocr.Tesseract.Windows.x86 (in DevScope.Ocr.Tesseract.Windows.x86.dll) Version: 2.0.0.0 (2.0.0.0)

Syntax

C++

Copy

public class TesseractOcrEngine : IDisposable

Public Class TesseractOcrEngine
	Implements IDisposable

public ref class TesseractOcrEngine : IDisposable

The TesseractOcrEngine type exposes the following members.

Constructors

	Name	Description
	TesseractOcrEngine	Initializes a new instance of the TesseractOcrEngine class.
	TesseractOcrEngine(TesseractOcrInitParams)	Initializes a new instance of the TesseractOcrEngine class.
	TesseractOcrEngine(String, String)	Initializes a new instance of the TesseractOcrEngine class.

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Methods

	Name	Description
	ClearResults	Clears the results.
	CreateSearchablePdf(TesseractOcrPdfJobRequest, Bitmap)	Creates a searchable PDF from a bitmap image.
	CreateSearchablePdf(TesseractOcrPdfJobRequest, String)	Creates a searchable PDF from a document file.
	DetectOrientationAndScript	Detects the orientation and script.
	Dispose	Finalizes an instance of the TesseractOcrEngine class.
	Dispose(Boolean)	Releases the unmanaged resources used by the TesseractOcrEngine and optionally releases the managed resources
	DoOcr(TesseractOcrJobRequest, Bitmap)	Execute the OCR job on the bitmap image.
	DoOcr(TesseractOcrJobRequest, String)	Execute the OCR job on the document filename.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetLicense	Gets the license.
	GetTesseractEngineVersion	Gets the tesseract engine version.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	InitializeEngine(TesseractOcrInitParams)	Initializes the OCR engine.
	InitializeEngine(String, String)	Initializes the OCR engine with the language dictionary.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	SetLicense	Sets the license.
	ShutdownEngine	Shutdowns the engine.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Properties

	Name	Description
	CurrentLanguage	Gets the language in use by the ocr engine.
	CurrentTessdataRootPath	Gets the tessdata root path in use by the ocr engine.
	IsInitialized	Gets the initialized state of the engine.

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Events

	Name	Description
	AutoDeskewCompleted	Raised after the Auto Deskew image pre-processing completed.
	AutoOrientationDetected	Raised after the Automatic detection of the document orientation.
	BeforeRecognition	Raised just before the ocr engine start recognizing text and layout.
	JobCanceled	Raised when the Ocr job was canceled.
	JobCompleted	Raised when the Ocr job completed.
	JobProgress	Raised during the Ocr job processing.
	JobStarted	Raised when the Ocr job started.

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Remarks

Please make sure that you don't use a global variable to control the engine. The TesseractOcrEngine is actualy an instance for running a ocr job, and you should initialize it and destroy it per OCR job. So remember to not share it globally.

Reference

DevScope.Ocr.Tesseract.Windows Namespace