public class Kernel extends Object implements Cloneable
Kernel
class defines a matrix that describes how a
specified pixel and its surrounding pixels affect the value
computed for the pixel's position in the output image of a filtering
operation. The X origin and Y origin indicate the kernel matrix element
that corresponds to the pixel position for which an output value is
being computed.ConvolveOp
Constructor and Description |
---|
Kernel(int width,
int height,
float[] data)
Constructs a
Kernel object from an array of floats. |
Modifier and Type | Method and Description |
---|---|
Object |
clone()
Clones this object.
|
int |
getHeight()
Returns the height of this
Kernel . |
float[] |
getKernelData(float[] data)
Returns the kernel data in row major order.
|
int |
getWidth()
Returns the width of this
Kernel . |
int |
getXOrigin()
Returns the X origin of this
Kernel . |
int |
getYOrigin()
Returns the Y origin of this
Kernel . |
public Kernel(int width, int height, float[] data)
Kernel
object from an array of floats.
The first width
*height
elements of
the data
array are copied.
If the length of the data
array is less
than width*height, an IllegalArgumentException
is thrown.
The X origin is (width-1)/2 and the Y origin is (height-1)/2.width
- width of the kernelheight
- height of the kerneldata
- kernel data in row major orderIllegalArgumentException
- if the length of data
is less than the product of width
and
height
public final int getXOrigin()
Kernel
.public final int getYOrigin()
Kernel
.public final int getWidth()
Kernel
.Kernel
.public final int getHeight()
Kernel
.Kernel
.public final float[] getKernelData(float[] data)
data
array is returned. If data
is null
, a new array is allocated.data
- if non-null, contains the returned kernel datadata
array containing the kernel data
in row major order or, if data
is
null
, a newly allocated array containing
the kernel data in row major orderIllegalArgumentException
- if data
is less
than the size of this Kernel
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