Package com.jhlabs.image
Class GaussianFilter
java.lang.Object
com.jhlabs.image.AbstractBufferedImageOp
com.jhlabs.image.ConvolveFilter
com.jhlabs.image.GaussianFilter
- All Implemented Interfaces:
BufferedImageOp
,Cloneable
- Direct Known Subclasses:
GlowFilter
,UnsharpFilter
A filter which applies Gaussian blur to an image. This is a subclass of ConvolveFilter
which simply creates a kernel with a Gaussian distribution for blurring.
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Field Summary
FieldsFields inherited from class com.jhlabs.image.ConvolveFilter
alpha, CLAMP_EDGES, WRAP_EDGES, ZERO_EDGES
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Constructor Summary
ConstructorsConstructorDescriptionConstruct a Gaussian filterGaussianFilter
(float radius) Construct a Gaussian filter -
Method Summary
Modifier and TypeMethodDescriptionstatic void
convolveAndTranspose
(Kernel kernel, int[] inPixels, int[] outPixels, int width, int height, boolean alpha, int edgeAction) filter
(BufferedImage src, BufferedImage dst) float
Get the radius of the kernel.static Kernel
makeKernel
(float radius) Make a Gaussian blur kernel.void
setRadius
(float radius) Set the radius of the kernel, and hence the amount of blur.toString()
Methods inherited from class com.jhlabs.image.ConvolveFilter
convolve, convolve, convolveH, convolveHV, convolveV, createCompatibleDestImage, getBounds2D, getEdgeAction, getKernel, getPoint2D, getRenderingHints, getUseAlpha, setEdgeAction, setKernel, setUseAlpha
Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp
clone, getRGB, setRGB
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Field Details
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radius
protected float radius -
kernel
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Constructor Details
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GaussianFilter
public GaussianFilter()Construct a Gaussian filter -
GaussianFilter
public GaussianFilter(float radius) Construct a Gaussian filter- Parameters:
radius
- blur radius in pixels
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Method Details
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setRadius
public void setRadius(float radius) Set the radius of the kernel, and hence the amount of blur. The bigger the radius, the longer this filter will take.- Parameters:
radius
- the radius of the blur in pixels.
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getRadius
public float getRadius()Get the radius of the kernel.- Returns:
- the radius
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filter
- Specified by:
filter
in interfaceBufferedImageOp
- Overrides:
filter
in classConvolveFilter
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convolveAndTranspose
public static void convolveAndTranspose(Kernel kernel, int[] inPixels, int[] outPixels, int width, int height, boolean alpha, int edgeAction) -
makeKernel
Make a Gaussian blur kernel. -
toString
- Overrides:
toString
in classConvolveFilter
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