Package com.logicaldoc.ocr

Class OCR

java.lang.Object

com.logicaldoc.ocr.OCR

Direct Known Subclasses:

Advanced, OCRWebService, PowerPDF, Tesseract

public abstract class OCR
extends Object

This OCR engine is capable of recognizing characters (letter and numbers) accurately

Author:

Alessandro Gasparini

Constructor Summary

Constructors

Constructor	Description
OCR()

Method Summary

Modifier and Type	Method	Description
void	extractPDFText(File pdffile, String lang, String tenant, StringBuilder buffer)	Extracts the text from PDF file
void	extractText(File imgfile, String lang, String tenant, StringBuilder sb)
String	getParameter(String name)
List<String>	getParameterNames()
Map<String,String>	getParameters()
int	getResolutionThreshold(String tenant)
boolean	isAvailable()
static boolean	isWindows()
void	loadParameters()

Methods inherited from class java.lang.Object

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

Constructor Detail

OCR

public OCR()

Method Detail

loadParameters

public void loadParameters()

getParameters

public Map<String,String> getParameters()

getParameter

public String getParameter(String name)

getParameterNames

public List<String> getParameterNames()

isAvailable

public boolean isAvailable()

extractPDFText

public void extractPDFText(File pdffile,
                           String lang,
                           String tenant,
                           StringBuilder buffer)
                    throws IOException

Extracts the text from PDF file

Parameters:

pdffile - the file to ocr

lang - the language in which the document is written

tenant - name of the tenant

buffer - the buffer to store the extracted text

Throws:

IOException - In case of OCR error

extractText

public void extractText(File imgfile,
                        String lang,
                        String tenant,
                        StringBuilder sb)
                 throws IOException

Throws:

IOException

getResolutionThreshold

public int getResolutionThreshold(String tenant)

isWindows

public static boolean isWindows()