net.sourceforge.javaocr.plugin.morphology
Class OpeningFilter

java.lang.Object
  net.sourceforge.javaocr.plugin.morphology.OpeningFilter

All Implemented Interfaces:

ImageFilter

public class OpeningFilter
extends Object
implements ImageFilter

Apply opening by structuring element to binarized source image. TODO Works for binarized images only, could be extended to grayscale. The opening of an image A by a structuring element B is obtained by the erosion of A by B, followed by dilation of the resulting image by B. http://en.wikipedia.org/wiki/Opening_%28morphology%29

Author:

Andrea De Pasquale

Field Summary

protected Image	destImage
protected DilationFilter	dilationFilter
protected ErosionFilter	erosionFilter
protected Image	tempImage

Constructor Summary

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

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

Method Summary

void	process(Image image)

Methods inherited from class java.lang.Object

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

Field Detail

erosionFilter

protected ErosionFilter erosionFilter

tempImage

protected Image tempImage

dilationFilter

protected DilationFilter dilationFilter

destImage

protected Image destImage

Constructor Detail

OpeningFilter

public OpeningFilter(Image strElem,
                     Image dest)

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

Parameters:

strElem - Structuring element

dest - Output image

OpeningFilter

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

Create an OpeningFilter.

Parameters:

strElem - Structuring element

dest - Output image

full - Foreground value

empty - Background value

Method Detail

process

public void process(Image image)

Specified by:

process in interface ImageFilter