Package edu.gsu.cs.dmlab.imageproc.edgedetection.util

Enum NonMaximumSuppression.EdgeDirection

java.lang.Object

java.lang.Enum<NonMaximumSuppression.EdgeDirection>

edu.gsu.cs.dmlab.imageproc.edgedetection.util.NonMaximumSuppression.EdgeDirection

All Implemented Interfaces:

Serializable, Comparable<NonMaximumSuppression.EdgeDirection>

Enclosing class:

NonMaximumSuppression

public static enum NonMaximumSuppression.EdgeDirection
extends Enum<NonMaximumSuppression.EdgeDirection>

Direction to check non-maximum suppression

Enum Constant Summary

Enum Constants

Enum Constant	Description
DIAG_LEFT_UP
DIAG_RIGHT_UP
HORIZONTAL
VERTICAL

Field Summary

Fields

Modifier and Type	Field	Description
static double	FLAT
static double	FLAT_TILT
static double	UP
static double	UP_TILT

Method Summary

Modifier and Type	Method	Description
static NonMaximumSuppression.EdgeDirection	getDirection(double radians)	Rounds direction to nearest 45 degrees.
static NonMaximumSuppression.EdgeDirection	getDirection(double G_x, double G_y)	Gets direction for non-maximum suppression from G_x and G_y.
static NonMaximumSuppression.EdgeDirection	valueOf(String name)	Returns the enum constant of this type with the specified name.
static NonMaximumSuppression.EdgeDirection[]	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

VERTICAL

public static final NonMaximumSuppression.EdgeDirection VERTICAL

HORIZONTAL

public static final NonMaximumSuppression.EdgeDirection HORIZONTAL

DIAG_LEFT_UP

public static final NonMaximumSuppression.EdgeDirection DIAG_LEFT_UP

DIAG_RIGHT_UP

public static final NonMaximumSuppression.EdgeDirection DIAG_RIGHT_UP

Field Detail

UP

public static final double UP

See Also:

Constant Field Values

UP_TILT

public static final double UP_TILT

See Also:

Constant Field Values

FLAT_TILT

public static final double FLAT_TILT

See Also:

Constant Field Values

FLAT

public static final double FLAT

See Also:

Constant Field Values

Method Detail

values

public static NonMaximumSuppression.EdgeDirection[] 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 (NonMaximumSuppression.EdgeDirection c : NonMaximumSuppression.EdgeDirection.values())
    System.out.println(c);

Returns:

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

valueOf

public static NonMaximumSuppression.EdgeDirection 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

getDirection

public static NonMaximumSuppression.EdgeDirection getDirection(double G_x,
                                                               double G_y)

Gets direction for non-maximum suppression from G_x and G_y. Handles case when G_x == 0 and can't calculate arctan.

Parameters:

G_x -

G_y -

Returns:

getDirection

public static NonMaximumSuppression.EdgeDirection getDirection(double radians)

Rounds direction to nearest 45 degrees.

Parameters:

radians -

Returns: