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Class TesseractOcrProvider

Represents an OCR provider that uses the Tesseract engine to extract text from an image.

Inheritance
System.Object
TesseractOcrProvider
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Telerik.Windows.Documents.TesseractOcr
Assembly: Telerik.Windows.Documents.TesseractOcr.dll

Syntax

public class TesseractOcrProvider : IOcrProvider

Constructors

TesseractOcrProvider(String)

Creates a new instance of the TesseractOcrProvider class.

Declaration
public TesseractOcrProvider(string dataPath)
Parameters
System.String dataPath

The path to the parent directory containing the tessdata directory. Ignored if the TESSDATA_PREFIX environment variable is set. If set to "." the tessdata directory should be in the same directory as the executable.

Properties

DataPath

The path to the parent directory containing the tessdata directory. Ignored if the TESSDATA_PREFIX environment variable is set. "." by default. If left unchanged, the tessdata directory should be in the same directory as the executable.

Declaration
public string DataPath { get; set; }
Property Value
System.String

LanguageCodes

The language codes to use for the Tesseract OCR engine. You can find the corresponding trained data for each language and their codes here: https://github.com/tesseract-ocr/tessdata

Declaration
public List<string> LanguageCodes { get; set; }
Property Value
System.Collections.Generic.List<System.String>

ParseLevel

Indicates the level of parsing that the OCR processor will perform.

Declaration
public OcrParseLevel ParseLevel { get; set; }
Property Value
OcrParseLevel

Implements

Methods

GetAllTextFromImage(Byte[])

Extracts all text from an image and returns it as a single string.

Declaration
public string GetAllTextFromImage(byte[] imageBytes)
Parameters
System.Byte[] imageBytes

The bytes of the image.
Returns
System.String

The entire text as a string.
Implements

GetTextFromImage(Byte[])

Extracts the text from an image and returns the words and their bounding rectangles.

Declaration
public Dictionary<Rectangle, string> GetTextFromImage(byte[] imageBytes)
Parameters
System.Byte[] imageBytes

The bytes of the image.
Returns
System.Collections.Generic.Dictionary<System.Drawing.Rectangle, System.String>

Words with corresponding bounding rectangles
Implements