public class GaussianFilter extends ConvolveFilter
Modifier and Type | Field and Description |
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protected java.awt.image.Kernel |
kernel
The convolution kernel.
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protected float |
radius
The blur radius.
|
alpha, CLAMP_EDGES, premultiplyAlpha, WRAP_EDGES, ZERO_EDGES
Constructor and Description |
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GaussianFilter()
Construct a Gaussian filter.
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GaussianFilter(float radius)
Construct a Gaussian filter.
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Modifier and Type | Method and Description |
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static void |
convolveAndTranspose(java.awt.image.Kernel kernel,
int[] inPixels,
int[] outPixels,
int width,
int height,
boolean alpha,
boolean premultiply,
boolean unpremultiply,
int edgeAction)
Blur and transpose a block of ARGB pixels.
|
java.awt.image.BufferedImage |
filter(java.awt.image.BufferedImage src,
java.awt.image.BufferedImage dst) |
float |
getRadius()
Get the radius of the kernel.
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static java.awt.image.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.
|
java.lang.String |
toString() |
convolve, convolve, convolveH, convolveHV, convolveV, createCompatibleDestImage, getBounds2D, getEdgeAction, getKernel, getPoint2D, getPremultiplyAlpha, getRenderingHints, getUseAlpha, setEdgeAction, setKernel, setPremultiplyAlpha, setUseAlpha
clone, getRGB, setRGB, stringToColor
protected float radius
protected java.awt.image.Kernel kernel
public GaussianFilter()
public GaussianFilter(float radius)
radius
- blur radius in pixelspublic void setRadius(float radius)
radius
- the radius of the blur in pixels, min-value 0, max-value 100+.getRadius()
public float getRadius()
setRadius(float)
public java.awt.image.BufferedImage filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dst)
filter
in interface java.awt.image.BufferedImageOp
filter
in class ConvolveFilter
public static void convolveAndTranspose(java.awt.image.Kernel kernel, int[] inPixels, int[] outPixels, int width, int height, boolean alpha, boolean premultiply, boolean unpremultiply, int edgeAction)
kernel
- the blur kernelinPixels
- the input pixelsoutPixels
- the output pixelswidth
- the width of the pixel arrayheight
- the height of the pixel arrayalpha
- whether to blur the alpha channelpremultiply
- whether to premultiplyunpremultiply
- whether to unpremultiplyedgeAction
- what to do at the edgespublic static java.awt.image.Kernel makeKernel(float radius)
radius
- the blur radiuspublic java.lang.String toString()
toString
in class ConvolveFilter