dekoh.portal.fwk.image
Class EXIFOrientation

java.lang.Object
  java.lang.Enum
      dekoh.portal.fwk.image.EXIFOrientation

All Implemented Interfaces:

Serializable, Comparable

public final class EXIFOrientation
extends Enum

The Exif orientation value gives the orientation of the camera relative to the scene when the image was captured. The relation of the '0th row' and '0th column' to visual position is shown as below.

Value	0th Row	0th Column
1	top	left side
2	top	rigth side
3	bottom	rigth side
4	bottom	left side
5	left side	top
6	right side	top
7	right side	bottom
8	left side	bottom

For convenience, here is what the letter F would look like if it were tagged correctly and displayed by a program that ignores the orientation tag:

   1        2       3      4         5            6           7          8

 888888  888888      88  88      8888888888  88                  88  8888888888
 88          88      88  88      88  88      88  88          88  88      88  88
 8888      8888    8888  8888    88          8888888888  8888888888          88
 88          88      88  88
 88          88  888888  888888
 

Since:

Mar 12, 2007

See Also:

Serialized Form

Field Summary

static EXIFOrientation	BOTTOM_LEFT
static EXIFOrientation	BOTTOM_RIGHT
static EXIFOrientation	LEFT_BOTTOM
static EXIFOrientation	LEFT_TOP
static EXIFOrientation	RIGHT_BOTTOM
static EXIFOrientation	RIGHT_TOP
static EXIFOrientation	TOP_LEFT
static EXIFOrientation	TOP_RIGHT

Method Summary

EXIFOrientation	compensateForRotation(int toDegree) Gets orientation for an image which after a rotation by toDegrees will be in the orientation denoted by the current instance.
byte	getByteValue()
static EXIFOrientation	getEXIFOrientation(byte byteValue)
static EXIFOrientation	getEXIFOrientation(int orientation)
EXIFOrientation	mirror()
static EXIFOrientation	valueOf(String name)
static EXIFOrientation[]	values()

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

TOP_LEFT

public static final EXIFOrientation TOP_LEFT

TOP_RIGHT

public static final EXIFOrientation TOP_RIGHT

BOTTOM_RIGHT

public static final EXIFOrientation BOTTOM_RIGHT

BOTTOM_LEFT

public static final EXIFOrientation BOTTOM_LEFT

LEFT_TOP

public static final EXIFOrientation LEFT_TOP

RIGHT_TOP

public static final EXIFOrientation RIGHT_TOP

RIGHT_BOTTOM

public static final EXIFOrientation RIGHT_BOTTOM

LEFT_BOTTOM

public static final EXIFOrientation LEFT_BOTTOM

Method Detail

values

public static final EXIFOrientation[] values()

valueOf

public static EXIFOrientation valueOf(String name)

getByteValue

public byte getByteValue()

getEXIFOrientation

public static EXIFOrientation getEXIFOrientation(int orientation)

Parameters:

orientation - number between 1 and 8

Returns:

EXIFOrientation enum const for given value

getEXIFOrientation

public static EXIFOrientation getEXIFOrientation(byte byteValue)

compensateForRotation

public EXIFOrientation compensateForRotation(int toDegree)

Gets orientation for an image which after a rotation by toDegrees will be in the orientation denoted by the current instance.

Parameters:

toDegree - degree rotated (multiple of 90 only)

Returns:

EXIFOrientation the original orientation which after rotation of toDegree will return the current orientation.

mirror

public EXIFOrientation mirror()