Package io.github.astrapisixtynine.pdf.to.text.tess4j

Klasse ImagePdfToTextExtensions

java.lang.Object

io.github.astrapisixtynine.pdf.to.text.tess4j.ImagePdfToTextExtensions

public final class ImagePdfToTextExtensions
extends Object

The class ImagePdfToTextExtensions provides functionality to convert a PDF file into a text file using either direct text extraction or Optical Character Recognition (OCR) through Tesseract OCR

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
static ConversionResult	convertPdfToTextfile(File pdfFile, File outputDir, String datapath, String language)	Converts a text or image PDF file to text using image processing and OCR
static String	extractTextFromImage(File imageFile, String datapath, String language)	Extracts text from a single image file using Tesseract OCR
static String	getTextContent(List<File> imageFiles, String datapath, String language)	Converts image files into text using Tesseract OCR
static List<File>	getTextFiles(List<File> imageFiles, File resultDir, String datapath, String language)	Converts text or image PDF files into text files using Tesseract OCR
static boolean	isTesseractInstalled()	Checks if Tesseract OCR is installed on the system by executing the "tesseract --version" command

Von Klasse geerbte Methoden java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methodendetails

convertPdfToTextfile

public static ConversionResult convertPdfToTextfile(File pdfFile,
 File outputDir,
 String datapath,
 String language)
                                             throws IOException,
net.sourceforge.tess4j.TesseractException

Converts a text or image PDF file to text using image processing and OCR

Parameter:

pdfFile - the input PDF file

outputDir - the directory where the output files will be stored

datapath - the path to Tesseract data files

language - the language to use for OCR

Gibt zurück:

the result of the conversion containing image files, text files, and the final result text file

Löst aus:

IOException - if an I/O error occurs

net.sourceforge.tess4j.TesseractException - if an error occurs during OCR

getTextFiles

public static List<File> getTextFiles(List<File> imageFiles,
 File resultDir,
 String datapath,
 String language)
                               throws IOException,
net.sourceforge.tess4j.TesseractException

Converts text or image PDF files into text files using Tesseract OCR

Parameter:

imageFiles - the list of image files to be processed

resultDir - the directory where the text files will be stored

datapath - the path to Tesseract data files

language - the language to use for OCR

Gibt zurück:

the list of generated text files

Löst aus:

IOException - if an I/O error occurs

net.sourceforge.tess4j.TesseractException - if an error occurs during OCR

getTextContent

public static String getTextContent(List<File> imageFiles,
 String datapath,
 String language)
                             throws net.sourceforge.tess4j.TesseractException

Converts image files into text using Tesseract OCR

Parameter:

imageFiles - the list of image files to be processed

datapath - the path to Tesseract data files

language - the language to use for OCR

Gibt zurück:

the String object that contains the result

Löst aus:

net.sourceforge.tess4j.TesseractException - if an error occurs during OCR

extractTextFromImage

public static String extractTextFromImage(File imageFile,
 String datapath,
 String language)
                                   throws net.sourceforge.tess4j.TesseractException

Extracts text from a single image file using Tesseract OCR

Parameter:

imageFile - the image file to process

datapath - the path to Tesseract data files

language - the language to use for OCR

Gibt zurück:

the extracted text

Löst aus:

net.sourceforge.tess4j.TesseractException - if an error occurs during OCR

isTesseractInstalled

public static boolean isTesseractInstalled()

Checks if Tesseract OCR is installed on the system by executing the "tesseract --version" command

Gibt zurück:

true if Tesseract is installed and available in the system's PATH; false otherwise