net.sourceforge.javaocr.plugin.morphology
Class ErosionFilter

java.lang.Object
  net.sourceforge.javaocr.plugin.morphology.AbstractMorphologyFilter
      net.sourceforge.javaocr.plugin.morphology.ErosionFilter

All Implemented Interfaces:

ImageFilter

public class ErosionFilter
extends AbstractMorphologyFilter

Apply erosion by structuring element to binarized source image. TODO Works for binarized images only, could be extended to grayscale. The erosion of an image A by a structuring element B can be understood as the locus of points reached by the center of B when B moves inside A. http://en.wikipedia.org/wiki/Erosion_(morphology)

Author:

Andrea De Pasquale

Field Summary

Fields inherited from class net.sourceforge.javaocr.plugin.morphology.AbstractMorphologyFilter

destImage, empty, full, seImage, seImageH, seImageW, sizeB, sizeL, sizeR, sizeT

Constructor Summary

ErosionFilter(Image strElem, Image dest)
Create an ErosionFilter with default values of 255 for the foreground and 0 for the background.

ErosionFilter(Image strElem, Image dest, int full, int empty)
Create an ErosionFilter.

Method Summary

void	process(Image image) Apply erosion to the given image, leaving borders unprocessed.
protected int	processNeighborhood(Image nImage)

Methods inherited from class java.lang.Object

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

Constructor Detail

ErosionFilter

public ErosionFilter(Image strElem,
                     Image dest)

Create an ErosionFilter with default values of 255 for the foreground and 0 for the background.

Parameters:

strElem - Structuring element

dest - Output image

ErosionFilter

public ErosionFilter(Image strElem,
                     Image dest,
                     int full,
                     int empty)

Create an ErosionFilter.

Parameters:

strElem - Structuring element

dest - Output image

full - Foreground value

empty - Background value

Method Detail

process

public void process(Image image)

Apply erosion to the given image, leaving borders unprocessed.

Parameters:

image - Input image

processNeighborhood

protected int processNeighborhood(Image nImage)