net.sourceforge.javaocr.plugin.morphology
Class DilationFilter

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

All Implemented Interfaces:

ImageFilter

public class DilationFilter
extends AbstractMorphologyFilter

Apply dilation by structuring element to binarized source image. TODO Works for binarized images only, could be extended to grayscale. The dilation of an image A by a structuring element B can be understood as the locus of the points covered by B when the center of B moves inside A. http://en.wikipedia.org/wiki/Dilation_%28morphology%29

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

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

DilationFilter(Image strElem, Image dest, int full, int empty)
Create a DilationFilter.

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

DilationFilter

public DilationFilter(Image strElem,
                      Image dest)

Create a DilationFilter with default values of 255 for the foreground and 0 for the background.

Parameters:

strElem - Structuring element

dest - Output image

DilationFilter

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

Create a DilationFilter.

Parameters:

strElem - Structuring element

dest - Output image

full - Foreground value

empty - Background value

Method Detail

process

public void process(Image image)

Apply dilation to the given image, leaving borders unprocessed.

Parameters:

image - Input image

processNeighborhood

protected void processNeighborhood(Image nImage)