org.apache.batik.ext.awt.image.rendered
Class GaussianBlurRed8Bit

java.lang.Object
  extended by org.apache.batik.ext.awt.image.rendered.AbstractRed
      extended by org.apache.batik.ext.awt.image.rendered.GaussianBlurRed8Bit
All Implemented Interfaces:
RenderedImage, CachableRed

public class GaussianBlurRed8Bit
extends AbstractRed

This implementation of RenderableImage will render its input GraphicsNode on demand for tiles.


Field Summary
 
Fields inherited from class org.apache.batik.ext.awt.image.rendered.AbstractRed
bounds, cm, minTileX, minTileY, numXTiles, numYTiles, props, sm, srcs, tileGridXOff, tileGridYOff, tileHeight, tileWidth
 
Constructor Summary
GaussianBlurRed8Bit(CachableRed src, double stdDevX, double stdDevY, RenderingHints rh)
          Construct a blurred version of src, by blurring with a gaussian kernel with standard Deviation of stdDev pixels.
GaussianBlurRed8Bit(CachableRed src, double stdDev, RenderingHints rh)
          Construct a blurred version of src, by blurring with a gaussian kernel with standard Deviation of stdDev pixels.
 
Method Summary
 WritableRaster copyData(WritableRaster wr)
           
protected static ColorModel fixColorModel(CachableRed src)
           
static int surroundPixels(double stdDev)
          Calculate the number of surround pixels required for a given standard Deviation.
static int surroundPixels(double stdDev, RenderingHints hints)
          Calculate the number of surround pixels required for a given standard Deviation.
 
Methods inherited from class org.apache.batik.ext.awt.image.rendered.AbstractRed
copyBand, copyToRaster, getBounds, getColorModel, getData, getData, getDependencyRegion, getDirtyRegion, getHeight, getMinTileX, getMinTileY, getMinX, getMinY, getNumXTiles, getNumYTiles, getProperty, getPropertyNames, getSampleModel, getSources, getTile, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, getWidth, getXTile, getYTile, init, init, makeTile, updateTileGridInfo
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

GaussianBlurRed8Bit

public GaussianBlurRed8Bit(CachableRed src,
                           double stdDev,
                           RenderingHints rh)
Construct a blurred version of src, by blurring with a gaussian kernel with standard Deviation of stdDev pixels.

Parameters:
src - The source image to blur
stdDev - The Standard Deviation of the Gaussian kernel.
rh - Rendering hints.

GaussianBlurRed8Bit

public GaussianBlurRed8Bit(CachableRed src,
                           double stdDevX,
                           double stdDevY,
                           RenderingHints rh)
Construct a blurred version of src, by blurring with a gaussian kernel with standard Deviation of stdDev pixels.

Parameters:
src - The source image to blur
stdDevX - The Standard Deviation of the Gaussian kernel in X
stdDevY - The Standard Deviation of the Gaussian kernel in Y
rh - Rendering hints.
Method Detail

surroundPixels

public static int surroundPixels(double stdDev)
Calculate the number of surround pixels required for a given standard Deviation.


surroundPixels

public static int surroundPixels(double stdDev,
                                 RenderingHints hints)
Calculate the number of surround pixels required for a given standard Deviation. Also takes into account rendering quality hint.


copyData

public WritableRaster copyData(WritableRaster wr)

fixColorModel

protected static ColorModel fixColorModel(CachableRed src)


Copyright © 2008 Apache Software Foundation. All Rights Reserved.