Package org.apache.batik.ext.awt.image.rendered

Class GaussianBlurRed8Bit

java.lang.Object

org.apache.batik.ext.awt.image.rendered.AbstractRed

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

All Implemented Interfaces:

java.awt.image.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

Constructors

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

Method Summary

Modifier and Type	Method	Description
java.awt.image.WritableRaster	copyData(java.awt.image.WritableRaster wr)
protected static java.awt.image.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, java.awt.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,
                           java.awt.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,
                           java.awt.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,
                                 java.awt.RenderingHints hints)

Calculate the number of surround pixels required for a given standard Deviation. Also takes into account rendering quality hint.

copyData

public java.awt.image.WritableRaster copyData(java.awt.image.WritableRaster wr)

fixColorModel

protected static java.awt.image.ColorModel fixColorModel(CachableRed src)