at.mug.iqm.commons.jaitools

Class KernelUtil

java.lang.Object

at.mug.iqm.commons.jaitools.KernelUtil

public class KernelUtil
extends Object

Various utility methods that work with KernelJAI objects

Author:

Michael Bedward

Field Summary

Fields

Modifier and Type	Field and Description
private static float	TOL

Constructor Summary

Constructors

Constructor and Description
KernelUtil()

Method Summary

Modifier and Type	Method and Description
private static boolean	feq(float f1, float f2) Test if two float values are equal, taking into accont a round-off tolerance
static String	kernelToString(javax.media.jai.KernelJAI kernel, boolean multiLine) A utility function that returns a string representation of a KernelJAI object's data.
static javax.media.jai.KernelJAI	standardize(javax.media.jai.KernelJAI kernel) Create a copy of the input kernel with element values standardized to sum to 1.0.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TOL

private static final float TOL

See Also:

Constant Field Values

Constructor Detail

KernelUtil

public KernelUtil()

Method Detail

standardize

public static javax.media.jai.KernelJAI standardize(javax.media.jai.KernelJAI kernel)

Create a copy of the input kernel with element values standardized to sum to 1.0. The input kernel's dimensions and location of the key element are retained by the new kernel.

Parameters:

kernel - the input kernel

Returns:

a new KernelJAI object

kernelToString

public static String kernelToString(javax.media.jai.KernelJAI kernel,
                                    boolean multiLine)

A utility function that returns a string representation of a KernelJAI object's data.

Parameters:

kernel - the input kernel

multiLine - if true, each row of kernel data is followed by a newline; if false, the string contains no newlines

Returns:

a String

feq

private static boolean feq(float f1,
                           float f2)

Test if two float values are equal, taking into accont a round-off tolerance

Parameters:

f1 - first value

f2 - second value

Returns:

true if equal, false otherwise