iText.Pdfocr.IOcrEngine Interface Reference

IOcrEngine interface is used for instantiating new OcrReader objects. More...

Inheritance diagram for iText.Pdfocr.IOcrEngine:

Public Member Functions
IDictionary< int, IList< TextInfo > >	DoImageOcr (FileInfo input)
	Reads data from the provided input image file and returns retrieved data in the format described below. More...
IDictionary< int, IList< TextInfo > >	DoImageOcr (FileInfo input, OcrProcessContext ocrProcessContext)
	Reads data from the provided input image file and returns retrieved data in the format described below. More...
void	CreateTxtFile (IList< FileInfo > inputImages, FileInfo txtFile)
	Performs OCR using provided IOcrEngine for the given list of input images and saves output to a text file using provided path. More...
void	CreateTxtFile (IList< FileInfo > inputImages, FileInfo txtFile, OcrProcessContext ocrProcessContext)
	Performs OCR using provided IOcrEngine for the given list of input images and saves output to a text file using provided path. More...
bool	IsTaggingSupported ()
	Checks whether tagging is supported by the OCR engine. More...

Detailed Description

IOcrEngine interface is used for instantiating new OcrReader objects.

IOcrEngine interface is used for instantiating new OcrReader objects. IOcrEngine interface provides possibility to perform OCR, to read data from input files and to return the contained text in the required format.

Member Function Documentation

CreateTxtFile() [1/2]

void iText.Pdfocr.IOcrEngine.CreateTxtFile	(	IList< FileInfo >	inputImages,
		FileInfo	txtFile
	)

Performs OCR using provided IOcrEngine for the given list of input images and saves output to a text file using provided path.

Performs OCR using provided IOcrEngine for the given list of input images and saves output to a text file using provided path. Note that a human reading order is not guaranteed due to possible specifics of input images (multi column layout, tables etc)

Parameters

inputImages

System.Collections.IList of images to be OCRed

Parameters

txtFile

file to be created

Implemented in iText.Pdfocr.Tesseract4.AbstractTesseract4OcrEngine.

CreateTxtFile() [2/2]

void iText.Pdfocr.IOcrEngine.CreateTxtFile	(	IList< FileInfo >	inputImages,
		FileInfo	txtFile,
		OcrProcessContext	ocrProcessContext
	)

Performs OCR using provided IOcrEngine for the given list of input images and saves output to a text file using provided path.

Performs OCR using provided IOcrEngine for the given list of input images and saves output to a text file using provided path. Note that a human reading order is not guaranteed due to possible specifics of input images (multi column layout, tables etc)

Parameters

inputImages

System.Collections.IList of images to be OCRed

Parameters

txtFile	file to be created
ocrProcessContext	ocr processing context

Implemented in iText.Pdfocr.Tesseract4.AbstractTesseract4OcrEngine.

DoImageOcr() [1/2]

IDictionaryTextInfo> > iText.Pdfocr.IOcrEngine.DoImageOcr

(

FileInfo

input

)

Reads data from the provided input image file and returns retrieved data in the format described below.

Parameters

input

input image System.IO.FileInfo

Returns

System.Collections.IDictionary where key is int? representing the number of the page and value is System.Collections.IList of TextInfo elements where each TextInfo element contains a word or a line and its 4 coordinates(bbox)

Implemented in iText.Pdfocr.Tesseract4.AbstractTesseract4OcrEngine.

DoImageOcr() [2/2]

IDictionaryTextInfo> > iText.Pdfocr.IOcrEngine.DoImageOcr	(	FileInfo	input,
		OcrProcessContext	ocrProcessContext
	)

Reads data from the provided input image file and returns retrieved data in the format described below.

Parameters

input	input image System.IO.FileInfo
ocrProcessContext	ocr processing context

Returns

System.Collections.IDictionary where key is int? representing the number of the page and value is System.Collections.IList of TextInfo elements where each TextInfo element contains a word or a line and its 4 coordinates(bbox)

Implemented in iText.Pdfocr.Tesseract4.AbstractTesseract4OcrEngine.

IsTaggingSupported()

bool iText.Pdfocr.IOcrEngine.IsTaggingSupported

(

)

Checks whether tagging is supported by the OCR engine.

Returns

true if tagging is supported by the engine, false otherwise

Implemented in iText.Pdfocr.Tesseract4.AbstractTesseract4OcrEngine.