org.jaitools.media.jai.kernel
Enum KernelFactory.ValueType

java.lang.Object
  java.lang.Enum<KernelFactory.ValueType>
      org.jaitools.media.jai.kernel.KernelFactory.ValueType

All Implemented Interfaces:

Serializable, Comparable<KernelFactory.ValueType>

Enclosing class:

KernelFactory

public static enum KernelFactory.ValueType
extends Enum<KernelFactory.ValueType>

Constants specifying how kernel element values are calculated.

Enum Constant Summary

BINARY
Inside elements have value 1.0; outside 0.0

COSINE
Value is PI/4 * cos(uPI/2) where u is proportional distance to the key element.

DISTANCE
Value is the distance to the kernel's key element.

EPANECHNIKOV
Value is 3(1 - u^2)/4 where u is proportional distance to the key element.

GAUSSIAN
Value is 1/sqrt(2PI) e^(-u^2 / 2) where u is proportional distance to the key element.

INVERSE_DISTANCE
Value is the inverse distance to the kernel's key element.

QUARTIC
Also known as biweight.

TRIANGULAR
Value is 1 - u where u is proportional distance to the key element.

TRIWEIGHT
Also known as tricubic.

Method Summary

static KernelFactory.ValueType	valueOf(String name) Returns the enum constant of this type with the specified name.
static KernelFactory.ValueType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BINARY

public static final KernelFactory.ValueType BINARY

Inside elements have value 1.0; outside 0.0

COSINE

public static final KernelFactory.ValueType COSINE

Value is PI/4 * cos(uPI/2) where u is proportional distance to the key element.

DISTANCE

public static final KernelFactory.ValueType DISTANCE

Value is the distance to the kernel's key element.

EPANECHNIKOV

public static final KernelFactory.ValueType EPANECHNIKOV

Value is 3(1 - u^2)/4 where u is proportional distance to the key element.

GAUSSIAN

public static final KernelFactory.ValueType GAUSSIAN

Value is 1/sqrt(2PI) e^(-u^2 / 2) where u is proportional distance to the key element.

INVERSE_DISTANCE

public static final KernelFactory.ValueType INVERSE_DISTANCE

Value is the inverse distance to the kernel's key element.

QUARTIC

public static final KernelFactory.ValueType QUARTIC

Also known as biweight. Value is 15/16 (1 - u^2)^2 where u is proportional distance to the key element.

TRIANGULAR

public static final KernelFactory.ValueType TRIANGULAR

Value is 1 - u where u is proportional distance to the key element.

TRIWEIGHT

public static final KernelFactory.ValueType TRIWEIGHT

Also known as tricubic. Value is 35/32 (1 - u^2)^3 where u is proportional distance to the key element.

Method Detail

values

public static KernelFactory.ValueType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (KernelFactory.ValueType c : KernelFactory.ValueType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static KernelFactory.ValueType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null