Class MorphologyOp
- java.lang.Object
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- org.apache.batik.ext.awt.image.rendered.MorphologyOp
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- All Implemented Interfaces:
java.awt.image.BufferedImageOp
,java.awt.image.RasterOp
public class MorphologyOp extends java.lang.Object implements java.awt.image.BufferedImageOp, java.awt.image.RasterOp
This class provides an implementation for the SVG feMorphology filter, as defined in Chapter 15, section 20 of the SVG specification.
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Constructor Summary
Constructors Constructor Description MorphologyOp(int radiusX, int radiusY, boolean doDilation)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.awt.image.BufferedImage
createCompatibleDestImage(java.awt.image.BufferedImage src, java.awt.image.ColorModel destCM)
java.awt.image.WritableRaster
createCompatibleDestRaster(java.awt.image.Raster src)
java.awt.image.BufferedImage
filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dest)
This implementation of filter does the morphology operation on a premultiplied alpha image.java.awt.image.WritableRaster
filter(java.awt.image.Raster src, java.awt.image.WritableRaster dest)
Filters src and writes result into dest.java.awt.geom.Rectangle2D
getBounds2D(java.awt.image.BufferedImage src)
java.awt.geom.Rectangle2D
getBounds2D(java.awt.image.Raster src)
java.awt.geom.Point2D
getPoint2D(java.awt.geom.Point2D srcPt, java.awt.geom.Point2D destPt)
java.awt.RenderingHints
getRenderingHints()
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Constructor Detail
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MorphologyOp
public MorphologyOp(int radiusX, int radiusY, boolean doDilation)
- Parameters:
radiusX
- defines the radius of filter operation on X-axis. Should not be negative. A value of zero will disable the effect of the operation on X-axis, as described in the SVG specification.radiusY
- defines the radius of filter operation on Y-axis. Should not be negative. A value of zero will disable the effect of the operation on Y-axis, as described in the SVG specification.doDilation
- defines whether to do dilation or erosion operation. Will do dilation when the value is true, erosion when false.
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Method Detail
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getBounds2D
public java.awt.geom.Rectangle2D getBounds2D(java.awt.image.Raster src)
- Specified by:
getBounds2D
in interfacejava.awt.image.RasterOp
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getBounds2D
public java.awt.geom.Rectangle2D getBounds2D(java.awt.image.BufferedImage src)
- Specified by:
getBounds2D
in interfacejava.awt.image.BufferedImageOp
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getPoint2D
public java.awt.geom.Point2D getPoint2D(java.awt.geom.Point2D srcPt, java.awt.geom.Point2D destPt)
- Specified by:
getPoint2D
in interfacejava.awt.image.BufferedImageOp
- Specified by:
getPoint2D
in interfacejava.awt.image.RasterOp
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getRenderingHints
public java.awt.RenderingHints getRenderingHints()
- Specified by:
getRenderingHints
in interfacejava.awt.image.BufferedImageOp
- Specified by:
getRenderingHints
in interfacejava.awt.image.RasterOp
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createCompatibleDestRaster
public java.awt.image.WritableRaster createCompatibleDestRaster(java.awt.image.Raster src)
- Specified by:
createCompatibleDestRaster
in interfacejava.awt.image.RasterOp
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createCompatibleDestImage
public java.awt.image.BufferedImage createCompatibleDestImage(java.awt.image.BufferedImage src, java.awt.image.ColorModel destCM)
- Specified by:
createCompatibleDestImage
in interfacejava.awt.image.BufferedImageOp
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filter
public java.awt.image.WritableRaster filter(java.awt.image.Raster src, java.awt.image.WritableRaster dest)
Filters src and writes result into dest. If dest if null, then a Raster is created. If dest and src refer to the same object, then the source is modified.The filtering kernel(the operation range for each pixel) is a rectangle of width 2*radiusX+1 and height radiusY+1
- Specified by:
filter
in interfacejava.awt.image.RasterOp
- Parameters:
src
- the Raster to be filtereddest
- stores the filtered image. If null, a destination will be created. src and dest can refer to the same Raster, in which situation the src will be modified.
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filter
public java.awt.image.BufferedImage filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dest)
This implementation of filter does the morphology operation on a premultiplied alpha image. This tends to muddy the colors. so something that is supposed to be a mostly transparent bright red may well become a muddy opaque red. Where as I think it should become a bright opaque red. Which is the result you would get if you were using unpremult data.- Specified by:
filter
in interfacejava.awt.image.BufferedImageOp
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