net.sourceforge.javaocr.ocr
Class AbstractBaseSlicer

java.lang.Object
  net.sourceforge.javaocr.ocr.AbstractBaseSlicer

All Implemented Interfaces:

ImageSlicer

Direct Known Subclasses:

SlicerH, SlicerV

public abstract class AbstractBaseSlicer
extends Object
implements ImageSlicer

abstract base slicer class encapsulating common functionality

Field Summary

protected int	border
protected int	currentPosition
(package private) int	empty
(package private) Image	image
(package private) int	tolerance

Constructor Summary

AbstractBaseSlicer(int empty, Image image, int border)

Method Summary

protected abstract Image	chisel(int imageStart)
boolean	hasNext() whether we have next image chunk available
protected abstract void	iterateSpan()
Image	next() chisel out sub-image with pre configured tolerance
ImageSlicer	slice(int fromY) start slicing from designated position with zero tolerance
ImageSlicer	slice(int from, int tolerance) start horizontal slicing from designated position tolerating some empty rows
protected boolean	spanEmpty() whether current image span is empty

Methods inherited from class java.lang.Object

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

Field Detail

image

Image image

empty

int empty

currentPosition

protected int currentPosition

tolerance

int tolerance

border

protected int border

Constructor Detail

AbstractBaseSlicer

public AbstractBaseSlicer(int empty,
                          Image image,
                          int border)

Method Detail

slice

public ImageSlicer slice(int fromY)

start slicing from designated position with zero tolerance

Specified by:

slice in interface ImageSlicer

Parameters:

fromY - starting Y

hasNext

public boolean hasNext()

whether we have next image chunk available

Specified by:

hasNext in interface ImageSlicer

Returns:

slice

public ImageSlicer slice(int from,
                         int tolerance)

start horizontal slicing from designated position tolerating some empty rows

Specified by:

slice in interface ImageSlicer

Parameters:

from - starting position

tolerance - amount of empty rows allowed inside consecutive image

spanEmpty

protected boolean spanEmpty()

whether current image span is empty

Returns:

next

public Image next()

chisel out sub-image with pre configured tolerance

Specified by:

next in interface ImageSlicer

Returns:

subimage

chisel

protected abstract Image chisel(int imageStart)

iterateSpan

protected abstract void iterateSpan()