net.sourceforge.javaocr.ocrPlugins.aspectRatio
Class AspectRatioOCR

java.lang.Object
  net.sourceforge.javaocr.scanner.DocumentScannerListenerAdaptor
      net.sourceforge.javaocr.ocrPlugins.aspectRatio.AspectRatioOCR

All Implemented Interfaces:

AccuracyProviderInterface, DocumentScannerListener

public class AspectRatioOCR
extends DocumentScannerListenerAdaptor
implements AccuracyProviderInterface

Provides an OCR that can be used in addition to other OCR plug-ins to increase accuracy.

Author:

William Whitney

Field Summary

private ArrayList<CharacterRatio>	charRatioList
private DocumentScanner	documentScanner
private AccuracyListenerInterface	listener
private static Logger	LOG
private HashMap<Character,ArrayList<TrainingImage>>	trainingImages

Constructor Summary

AspectRatioOCR(HashMap<Character,ArrayList<TrainingImage>> trainingImages)

Method Summary

void	acceptAccuracyListener(AccuracyListenerInterface listener)
private OCRIdentification	determineCharacterPossibilities(double targetRatio)
void	endRow(PixelImage pixelImage, int y1, int y2)
private double	getRatio(int width, int height)
void	processChar(PixelImage pixelImage, int x1, int y1, int x2, int y2, int rowY1, int rowY2)
void	processSpace(PixelImage pixelImage, int x1, int y1, int x2, int y2)
private void	processTrainingImages()
void	scan(BufferedImage targetBfImage)

Methods inherited from class net.sourceforge.javaocr.scanner.DocumentScannerListenerAdaptor

beginDocument, beginRow, endDocument

Methods inherited from class java.lang.Object

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

Field Detail

listener

private AccuracyListenerInterface listener

trainingImages

private final HashMap<Character,ArrayList<TrainingImage>> trainingImages

charRatioList

private final ArrayList<CharacterRatio> charRatioList

documentScanner

private DocumentScanner documentScanner

LOG

private static final Logger LOG

Constructor Detail

AspectRatioOCR

public AspectRatioOCR(HashMap<Character,ArrayList<TrainingImage>> trainingImages)

Method Detail

scan

public void scan(BufferedImage targetBfImage)

acceptAccuracyListener

public void acceptAccuracyListener(AccuracyListenerInterface listener)

Specified by:

acceptAccuracyListener in interface AccuracyProviderInterface

endRow

public void endRow(PixelImage pixelImage,
                   int y1,
                   int y2)

Specified by:

endRow in interface DocumentScannerListener

Overrides:

endRow in class DocumentScannerListenerAdaptor

processChar

public void processChar(PixelImage pixelImage,
                        int x1,
                        int y1,
                        int x2,
                        int y2,
                        int rowY1,
                        int rowY2)

Specified by:

processChar in interface DocumentScannerListener

Overrides:

processChar in class DocumentScannerListenerAdaptor

processSpace

public void processSpace(PixelImage pixelImage,
                         int x1,
                         int y1,
                         int x2,
                         int y2)

Specified by:

processSpace in interface DocumentScannerListener

Overrides:

processSpace in class DocumentScannerListenerAdaptor

processTrainingImages

private void processTrainingImages()

getRatio

private double getRatio(int width,
                        int height)

determineCharacterPossibilities

private OCRIdentification determineCharacterPossibilities(double targetRatio)