com.drew.metadata.exif
Class ExifDirectory

java.lang.Object
  com.drew.metadata.Directory
      com.drew.metadata.exif.ExifDirectory

All Implemented Interfaces:

Serializable

public class ExifDirectory
extends Directory

Describes Exif tags such as Camera Model, Date Taken, Aperture and Shutter Speed.

See Also:

Serialized Form

Field Summary

static int	COMPRESSION_JPEG
static int	COMPRESSION_NONE
static int	PHOTOMETRIC_INTERPRETATION_MONOCHROME
static int	PHOTOMETRIC_INTERPRETATION_RGB
static int	PHOTOMETRIC_INTERPRETATION_YCBCR
static int	TAG_35MM_FILM_EQUIV_FOCAL_LENGTH This tag indicates the equivalent focal length assuming a 35mm film camera, in mm.
static int	TAG_APERTURE The actual aperture value of lens when the image was taken.
static int	TAG_ARTIST
static int	TAG_BATTERY_LEVEL
static int	TAG_BITS_PER_SAMPLE When image format is no compression, this value shows the number of bits per component for each pixel.
static int	TAG_BRIGHTNESS_VALUE
static int	TAG_CFA_PATTERN
static int	TAG_CFA_PATTERN_2 There are two definitions for CFA pattern, I don't know the difference...
static int	TAG_CFA_REPEAT_PATTERN_DIM
static int	TAG_COLOR_SPACE Defines Color Space.
static int	TAG_COMPONENTS_CONFIGURATION
static int	TAG_COMPRESSION Shows compression method for Thumbnail.
static int	TAG_COMPRESSION_LEVEL Average (rough estimate) compression level in JPEG bits per pixel.
static int	TAG_CONTRAST This tag indicates the direction of contrast processing applied by the camera when the image was shot.
static int	TAG_COPYRIGHT
static int	TAG_CUSTOM_RENDERED This tag indicates the use of special processing on image data, such as rendering geared to output.
static int	TAG_DATETIME
static int	TAG_DATETIME_DIGITIZED
static int	TAG_DATETIME_ORIGINAL
static int	TAG_DEVICE_SETTING_DESCRIPTION This tag indicates information on the picture-taking conditions of a particular camera model.
static int	TAG_DIGITAL_ZOOM_RATIO This tag indicates the digital zoom ratio when the image was shot.
static int	TAG_DOCUMENT_NAME
static int	TAG_EXIF_IMAGE_HEIGHT
static int	TAG_EXIF_IMAGE_WIDTH
static int	TAG_EXIF_VERSION
static int	TAG_EXPOSURE_BIAS
static int	TAG_EXPOSURE_INDEX
static int	TAG_EXPOSURE_INDEX_2 There are two definitions for exposure index, I don't know the difference...
static int	TAG_EXPOSURE_MODE This tag indicates the exposure mode set when the image was shot.
static int	TAG_EXPOSURE_PROGRAM Exposure program that the camera used when image was taken.
static int	TAG_EXPOSURE_TIME Exposure time (reciprocal of shutter speed).
static int	TAG_FILE_SOURCE
static int	TAG_FILL_ORDER 1 = Normal 2 = Reversed
static int	TAG_FLASH 0x0 = 0000000 = No Flash 0x1 = 0000001 = Fired 0x5 = 0000101 = Fired, Return not detected 0x7 = 0000111 = Fired, Return detected 0x9 = 0001001 = On 0xd = 0001101 = On, Return not detected 0xf = 0001111 = On, Return detected 0x10 = 0010000 = Off 0x18 = 0011000 = Auto, Did not fire 0x19 = 0011001 = Auto, Fired 0x1d = 0011101 = Auto, Fired, Return not detected 0x1f = 0011111 = Auto, Fired, Return detected 0x20 = 0100000 = No flash function 0x41 = 1000001 = Fired, Red-eye reduction 0x45 = 1000101 = Fired, Red-eye reduction, Return not detected 0x47 = 1000111 = Fired, Red-eye reduction, Return detected 0x49 = 1001001 = On, Red-eye reduction 0x4d = 1001101 = On, Red-eye reduction, Return not detected 0x4f = 1001111 = On, Red-eye reduction, Return detected 0x59 = 1011001 = Auto, Fired, Red-eye reduction 0x5d = 1011101 = Auto, Fired, Red-eye reduction, Return not detected 0x5f = 1011111 = Auto, Fired, Red-eye reduction, Return detected 6543210 (positions) This is a bitmask.
static int	TAG_FLASH_ENERGY
static int	TAG_FLASH_ENERGY_2
static int	TAG_FLASHPIX_VERSION
static int	TAG_FNUMBER The actual F-number(F-stop) of lens when the image was taken.
static int	TAG_FOCAL_LENGTH Focal length of lens used to take image.
static int	TAG_FOCAL_PLANE_UNIT Unit of FocalPlaneXResoluton/FocalPlaneYResolution.
static int	TAG_FOCAL_PLANE_X_RES
static int	TAG_FOCAL_PLANE_Y_RES
static int	TAG_GAIN_CONTROL This tag indicates the degree of overall image gain adjustment.
static int	TAG_GPS_INFO
static int	TAG_IMAGE_DESCRIPTION
static int	TAG_IMAGE_HISTORY
static int	TAG_IMAGE_NUMBER
static int	TAG_IMAGE_UNIQUE_ID This tag indicates an identifier assigned uniquely to each image.
static int	TAG_INTER_COLOR_PROFILE
static int	TAG_INTERLACE
static int	TAG_IPTC_NAA
static int	TAG_ISO_EQUIVALENT
static int	TAG_JPEG_TABLES
static int	TAG_LIGHT_SOURCE
static int	TAG_MAKE
static int	TAG_MAX_APERTURE Maximum aperture value of lens.
static int	TAG_MAX_SAMPLE_VALUE
static int	TAG_METERING_MODE Exposure metering method.
static int	TAG_MIN_SAMPLE_VALUE
static int	TAG_MODEL
static int	TAG_NEW_SUBFILE_TYPE The new subfile type tag.
static int	TAG_NOISE
static int	TAG_OECF
static int	TAG_ORIENTATION
static int	TAG_PAGE_NAME
static int	TAG_PHOTOMETRIC_INTERPRETATION Shows the color space of the image data components.
static int	TAG_PLANAR_CONFIGURATION When image format is no compression YCbCr, this value shows byte aligns of YCbCr data.
static int	TAG_PREDICTOR
static int	TAG_PRIMARY_CHROMATICITIES
static int	TAG_REFERENCE_BLACK_WHITE
static int	TAG_RELATED_SOUND_FILE
static int	TAG_RESOLUTION_UNIT
static int	TAG_ROWS_PER_STRIP The raster is codified by a single block of data holding this many rows.
static int	TAG_SAMPLES_PER_PIXEL Each pixel is composed of this many samples.
static int	TAG_SATURATION This tag indicates the direction of saturation processing applied by the camera when the image was shot.
static int	TAG_SCENE_CAPTURE_TYPE This tag indicates the type of scene that was shot.
static int	TAG_SCENE_TYPE
static int	TAG_SECURITY_CLASSIFICATION
static int	TAG_SELF_TIMER_MODE
static int	TAG_SENSING_METHOD
static int	TAG_SHARPNESS This tag indicates the direction of sharpness processing applied by the camera when the image was shot.
static int	TAG_SHUTTER_SPEED Shutter speed by APEX value.
static int	TAG_SOFTWARE
static int	TAG_SPATIAL_FREQ_RESPONSE
static int	TAG_SPATIAL_FREQ_RESPONSE_2
static int	TAG_SPECTRAL_SENSITIVITY
static int	TAG_STRIP_BYTE_COUNTS The size of the raster data in bytes.
static int	TAG_STRIP_OFFSETS The position in the file of raster data.
static int	TAG_SUB_IFDS
static int	TAG_SUBFILE_TYPE The old subfile type tag.
static int	TAG_SUBJECT_DISTANCE Indicates the distance the autofocus camera is focused to.
static int	TAG_SUBJECT_DISTANCE_RANGE This tag indicates the distance to the subject.
static int	TAG_SUBJECT_LOCATION
static int	TAG_SUBJECT_LOCATION_2
static int	TAG_SUBSECOND_TIME
static int	TAG_SUBSECOND_TIME_DIGITIZED
static int	TAG_SUBSECOND_TIME_ORIGINAL
static int	TAG_THRESHOLDING 1 = No dithering or halftoning 2 = Ordered dither or halftone 3 = Randomized dither
static int	TAG_THUMBNAIL_DATA
static int	TAG_THUMBNAIL_IMAGE_HEIGHT
static int	TAG_THUMBNAIL_IMAGE_WIDTH
static int	TAG_THUMBNAIL_LENGTH
static int	TAG_THUMBNAIL_OFFSET
static int	TAG_TIFF_EP_STANDARD_ID
static int	TAG_TILE_BYTE_COUNTS
static int	TAG_TILE_LENGTH
static int	TAG_TILE_OFFSETS
static int	TAG_TILE_WIDTH
static int	TAG_TIME_ZONE_OFFSET
static int	TAG_TRANSFER_FUNCTION
static int	TAG_USER_COMMENT
static int	TAG_WHITE_BALANCE White balance (aka light source).
static int	TAG_WHITE_BALANCE_MODE This tag indicates the white balance mode set when the image was shot.
static int	TAG_WHITE_POINT
static int	TAG_WIN_AUTHOR The image author, as used by Windows XP (called Artist in the Windows shell).
static int	TAG_WIN_COMMENT The image comment, as used by Windows XP.
static int	TAG_WIN_KEYWORDS The image keywords, as used by Windows XP.
static int	TAG_WIN_SUBJECT The image subject, as used by Windows XP.
static int	TAG_WIN_TITLE The image title, as used by Windows XP.
static int	TAG_X_RESOLUTION
static int	TAG_Y_RESOLUTION
static int	TAG_YCBCR_COEFFICIENTS
static int	TAG_YCBCR_POSITIONING
static int	TAG_YCBCR_SUBSAMPLING
protected static HashMap	tagNameMap

Fields inherited from class com.drew.metadata.Directory

_definedTagList, _descriptor, _tagMap

Constructor Summary

ExifDirectory()

Method Summary

boolean	containsThumbnail()
String	getName() Provides the name of the directory, for display purposes.
protected HashMap	getTagNameMap() Provides the map of tag names, hashed by tag type identifier.
byte[]	getThumbnailData()
void	writeThumbnail(String filename)

Methods inherited from class com.drew.metadata.Directory

addError, containsTag, getBoolean, getByteArray, getDate, getDescription, getDouble, getErrorCount, getErrors, getFloat, getInt, getIntArray, getLong, getObject, getRational, getRationalArray, getString, getStringArray, getTagCount, getTagIterator, getTagName, hasErrors, setBoolean, setByteArray, setDate, setDescriptor, setDouble, setFloat, setInt, setIntArray, setLong, setObject, setObjectArray, setRational, setRationalArray, setString, setStringArray

Methods inherited from class java.lang.Object

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

Field Detail

TAG_SUB_IFDS

public static final int TAG_SUB_IFDS

See Also:

Constant Field Values

TAG_GPS_INFO

public static final int TAG_GPS_INFO

See Also:

Constant Field Values

TAG_APERTURE

public static final int TAG_APERTURE

The actual aperture value of lens when the image was taken. Unit is APEX. To convert this value to ordinary F-number (F-stop), calculate this value's power of root 2 (=1.4142). For example, if the ApertureValue is '5', F-number is 1.4142^5 = F5.6.

See Also:

Constant Field Values

TAG_BITS_PER_SAMPLE

public static final int TAG_BITS_PER_SAMPLE

When image format is no compression, this value shows the number of bits per component for each pixel. Usually this value is '8,8,8'.

See Also:

Constant Field Values

TAG_COMPRESSION

public static final int TAG_COMPRESSION

Shows compression method for Thumbnail. 1 = Uncompressed 2 = CCITT 1D 3 = T4/Group 3 Fax 4 = T6/Group 4 Fax 5 = LZW 6 = JPEG (old-style) 7 = JPEG 8 = Adobe Deflate 9 = JBIG B&W 10 = JBIG Color 32766 = Next 32771 = CCIRLEW 32773 = PackBits 32809 = Thunderscan 32895 = IT8CTPAD 32896 = IT8LW 32897 = IT8MP 32898 = IT8BL 32908 = PixarFilm 32909 = PixarLog 32946 = Deflate 32947 = DCS 34661 = JBIG 34676 = SGILog 34677 = SGILog24 34712 = JPEG 2000 34713 = Nikon NEF Compressed

See Also:

Constant Field Values

COMPRESSION_NONE

public static final int COMPRESSION_NONE

See Also:

Constant Field Values

COMPRESSION_JPEG

public static final int COMPRESSION_JPEG

See Also:

Constant Field Values

TAG_PHOTOMETRIC_INTERPRETATION

public static final int TAG_PHOTOMETRIC_INTERPRETATION

Shows the color space of the image data components. 0 = WhiteIsZero 1 = BlackIsZero 2 = RGB 3 = RGB Palette 4 = Transparency Mask 5 = CMYK 6 = YCbCr 8 = CIELab 9 = ICCLab 10 = ITULab 32803 = Color Filter Array 32844 = Pixar LogL 32845 = Pixar LogLuv 34892 = Linear Raw

See Also:

Constant Field Values

TAG_THRESHOLDING

public static final int TAG_THRESHOLDING

1 = No dithering or halftoning 2 = Ordered dither or halftone 3 = Randomized dither

See Also:

Constant Field Values

PHOTOMETRIC_INTERPRETATION_MONOCHROME

public static final int PHOTOMETRIC_INTERPRETATION_MONOCHROME

See Also:

Constant Field Values

PHOTOMETRIC_INTERPRETATION_RGB

public static final int PHOTOMETRIC_INTERPRETATION_RGB

See Also:

Constant Field Values

PHOTOMETRIC_INTERPRETATION_YCBCR

public static final int PHOTOMETRIC_INTERPRETATION_YCBCR

See Also:

Constant Field Values

TAG_STRIP_OFFSETS

public static final int TAG_STRIP_OFFSETS

The position in the file of raster data.

See Also:

Constant Field Values

TAG_SAMPLES_PER_PIXEL

public static final int TAG_SAMPLES_PER_PIXEL

Each pixel is composed of this many samples.

See Also:

Constant Field Values

TAG_ROWS_PER_STRIP

public static final int TAG_ROWS_PER_STRIP

The raster is codified by a single block of data holding this many rows.

See Also:

Constant Field Values

TAG_STRIP_BYTE_COUNTS

public static final int TAG_STRIP_BYTE_COUNTS

The size of the raster data in bytes.

See Also:

Constant Field Values

TAG_MIN_SAMPLE_VALUE

public static final int TAG_MIN_SAMPLE_VALUE

See Also:

Constant Field Values

TAG_MAX_SAMPLE_VALUE

public static final int TAG_MAX_SAMPLE_VALUE

See Also:

Constant Field Values

TAG_PLANAR_CONFIGURATION

public static final int TAG_PLANAR_CONFIGURATION

When image format is no compression YCbCr, this value shows byte aligns of YCbCr data. If value is '1', Y/Cb/Cr value is chunky format, contiguous for each subsampling pixel. If value is '2', Y/Cb/Cr value is separated and stored to Y plane/Cb plane/Cr plane format.

See Also:

Constant Field Values

TAG_YCBCR_SUBSAMPLING

public static final int TAG_YCBCR_SUBSAMPLING

See Also:

Constant Field Values

TAG_IMAGE_DESCRIPTION

public static final int TAG_IMAGE_DESCRIPTION

See Also:

Constant Field Values

TAG_SOFTWARE

public static final int TAG_SOFTWARE

See Also:

Constant Field Values

TAG_DATETIME

public static final int TAG_DATETIME

See Also:

Constant Field Values

TAG_WHITE_POINT

public static final int TAG_WHITE_POINT

See Also:

Constant Field Values

TAG_PRIMARY_CHROMATICITIES

public static final int TAG_PRIMARY_CHROMATICITIES

See Also:

Constant Field Values

TAG_YCBCR_COEFFICIENTS

public static final int TAG_YCBCR_COEFFICIENTS

See Also:

Constant Field Values

TAG_REFERENCE_BLACK_WHITE

public static final int TAG_REFERENCE_BLACK_WHITE

See Also:

Constant Field Values

TAG_COPYRIGHT

public static final int TAG_COPYRIGHT

See Also:

Constant Field Values

TAG_NEW_SUBFILE_TYPE

public static final int TAG_NEW_SUBFILE_TYPE

The new subfile type tag. 0 = Full-resolution Image 1 = Reduced-resolution image 2 = Single page of multi-page image 3 = Single page of multi-page reduced-resolution image 4 = Transparency mask 5 = Transparency mask of reduced-resolution image 6 = Transparency mask of multi-page image 7 = Transparency mask of reduced-resolution multi-page image

See Also:

Constant Field Values

TAG_SUBFILE_TYPE

public static final int TAG_SUBFILE_TYPE

The old subfile type tag. 1 = Full-resolution image (Main image) 2 = Reduced-resolution image (Thumbnail) 3 = Single page of multi-page image

See Also:

Constant Field Values

TAG_TRANSFER_FUNCTION

public static final int TAG_TRANSFER_FUNCTION

See Also:

Constant Field Values

TAG_ARTIST

public static final int TAG_ARTIST

See Also:

Constant Field Values

TAG_PREDICTOR

public static final int TAG_PREDICTOR

See Also:

Constant Field Values

TAG_TILE_WIDTH

public static final int TAG_TILE_WIDTH

See Also:

Constant Field Values

TAG_TILE_LENGTH

public static final int TAG_TILE_LENGTH

See Also:

Constant Field Values

TAG_TILE_OFFSETS

public static final int TAG_TILE_OFFSETS

See Also:

Constant Field Values

TAG_TILE_BYTE_COUNTS

public static final int TAG_TILE_BYTE_COUNTS

See Also:

Constant Field Values

TAG_JPEG_TABLES

public static final int TAG_JPEG_TABLES

See Also:

Constant Field Values

TAG_CFA_REPEAT_PATTERN_DIM

public static final int TAG_CFA_REPEAT_PATTERN_DIM

See Also:

Constant Field Values

TAG_CFA_PATTERN_2

public static final int TAG_CFA_PATTERN_2

There are two definitions for CFA pattern, I don't know the difference...

See Also:

Constant Field Values

TAG_BATTERY_LEVEL

public static final int TAG_BATTERY_LEVEL

See Also:

Constant Field Values

TAG_IPTC_NAA

public static final int TAG_IPTC_NAA

See Also:

Constant Field Values

TAG_INTER_COLOR_PROFILE

public static final int TAG_INTER_COLOR_PROFILE

See Also:

Constant Field Values

TAG_SPECTRAL_SENSITIVITY

public static final int TAG_SPECTRAL_SENSITIVITY

See Also:

Constant Field Values

TAG_OECF

public static final int TAG_OECF

See Also:

Constant Field Values

TAG_INTERLACE

public static final int TAG_INTERLACE

See Also:

Constant Field Values

TAG_TIME_ZONE_OFFSET

public static final int TAG_TIME_ZONE_OFFSET

See Also:

Constant Field Values

TAG_SELF_TIMER_MODE

public static final int TAG_SELF_TIMER_MODE

See Also:

Constant Field Values

TAG_FLASH_ENERGY

public static final int TAG_FLASH_ENERGY

See Also:

Constant Field Values

TAG_SPATIAL_FREQ_RESPONSE

public static final int TAG_SPATIAL_FREQ_RESPONSE

See Also:

Constant Field Values

TAG_NOISE

public static final int TAG_NOISE

See Also:

Constant Field Values

TAG_IMAGE_NUMBER

public static final int TAG_IMAGE_NUMBER

See Also:

Constant Field Values

TAG_SECURITY_CLASSIFICATION

public static final int TAG_SECURITY_CLASSIFICATION

See Also:

Constant Field Values

TAG_IMAGE_HISTORY

public static final int TAG_IMAGE_HISTORY

See Also:

Constant Field Values

TAG_SUBJECT_LOCATION

public static final int TAG_SUBJECT_LOCATION

See Also:

Constant Field Values

TAG_EXPOSURE_INDEX_2

public static final int TAG_EXPOSURE_INDEX_2

There are two definitions for exposure index, I don't know the difference...

See Also:

Constant Field Values

TAG_TIFF_EP_STANDARD_ID

public static final int TAG_TIFF_EP_STANDARD_ID

See Also:

Constant Field Values

TAG_FLASH_ENERGY_2

public static final int TAG_FLASH_ENERGY_2

See Also:

Constant Field Values

TAG_SPATIAL_FREQ_RESPONSE_2

public static final int TAG_SPATIAL_FREQ_RESPONSE_2

See Also:

Constant Field Values

TAG_SUBJECT_LOCATION_2

public static final int TAG_SUBJECT_LOCATION_2

See Also:

Constant Field Values

TAG_MAKE

public static final int TAG_MAKE

See Also:

Constant Field Values

TAG_MODEL

public static final int TAG_MODEL

See Also:

Constant Field Values

TAG_ORIENTATION

public static final int TAG_ORIENTATION

See Also:

Constant Field Values

TAG_X_RESOLUTION

public static final int TAG_X_RESOLUTION

See Also:

Constant Field Values

TAG_Y_RESOLUTION

public static final int TAG_Y_RESOLUTION

See Also:

Constant Field Values

TAG_PAGE_NAME

public static final int TAG_PAGE_NAME

See Also:

Constant Field Values

TAG_RESOLUTION_UNIT

public static final int TAG_RESOLUTION_UNIT

See Also:

Constant Field Values

TAG_THUMBNAIL_OFFSET

public static final int TAG_THUMBNAIL_OFFSET

See Also:

Constant Field Values

TAG_THUMBNAIL_LENGTH

public static final int TAG_THUMBNAIL_LENGTH

See Also:

Constant Field Values

TAG_YCBCR_POSITIONING

public static final int TAG_YCBCR_POSITIONING

See Also:

Constant Field Values

TAG_EXPOSURE_TIME

public static final int TAG_EXPOSURE_TIME

Exposure time (reciprocal of shutter speed). Unit is second.

See Also:

Constant Field Values

TAG_FNUMBER

public static final int TAG_FNUMBER

The actual F-number(F-stop) of lens when the image was taken.

See Also:

Constant Field Values

TAG_EXPOSURE_PROGRAM

public static final int TAG_EXPOSURE_PROGRAM

Exposure program that the camera used when image was taken. '1' means manual control, '2' program normal, '3' aperture priority, '4' shutter priority, '5' program creative (slow program), '6' program action (high-speed program), '7' portrait mode, '8' landscape mode.

See Also:

Constant Field Values

TAG_ISO_EQUIVALENT

public static final int TAG_ISO_EQUIVALENT

See Also:

Constant Field Values

TAG_EXIF_VERSION

public static final int TAG_EXIF_VERSION

See Also:

Constant Field Values

TAG_DATETIME_ORIGINAL

public static final int TAG_DATETIME_ORIGINAL

See Also:

Constant Field Values

TAG_DATETIME_DIGITIZED

public static final int TAG_DATETIME_DIGITIZED

See Also:

Constant Field Values

TAG_COMPONENTS_CONFIGURATION

public static final int TAG_COMPONENTS_CONFIGURATION

See Also:

Constant Field Values

TAG_COMPRESSION_LEVEL

public static final int TAG_COMPRESSION_LEVEL

Average (rough estimate) compression level in JPEG bits per pixel.

See Also:

Constant Field Values

TAG_SHUTTER_SPEED

public static final int TAG_SHUTTER_SPEED

Shutter speed by APEX value. To convert this value to ordinary 'Shutter Speed'; calculate this value's power of 2, then reciprocal. For example, if the ShutterSpeedValue is '4', shutter speed is 1/(24)=1/16 second.

See Also:

Constant Field Values

TAG_BRIGHTNESS_VALUE

public static final int TAG_BRIGHTNESS_VALUE

See Also:

Constant Field Values

TAG_EXPOSURE_BIAS

public static final int TAG_EXPOSURE_BIAS

See Also:

Constant Field Values

TAG_MAX_APERTURE

public static final int TAG_MAX_APERTURE

Maximum aperture value of lens. You can convert to F-number by calculating power of root 2 (same process of ApertureValue:0x9202). The actual aperture value of lens when the image was taken. To convert this value to ordinary f-number(f-stop), calculate the value's power of root 2 (=1.4142). For example, if the ApertureValue is '5', f-number is 1.41425^5 = F5.6.

See Also:

Constant Field Values

TAG_SUBJECT_DISTANCE

public static final int TAG_SUBJECT_DISTANCE

Indicates the distance the autofocus camera is focused to. Tends to be less accurate as distance increases.

See Also:

Constant Field Values

TAG_METERING_MODE

public static final int TAG_METERING_MODE

Exposure metering method. '0' means unknown, '1' average, '2' center weighted average, '3' spot, '4' multi-spot, '5' multi-segment, '6' partial, '255' other.

See Also:

Constant Field Values

TAG_LIGHT_SOURCE

public static final int TAG_LIGHT_SOURCE

See Also:

Constant Field Values

TAG_WHITE_BALANCE

public static final int TAG_WHITE_BALANCE

White balance (aka light source). '0' means unknown, '1' daylight, '2' fluorescent, '3' tungsten, '10' flash, '17' standard light A, '18' standard light B, '19' standard light C, '20' D55, '21' D65, '22' D75, '255' other.

See Also:

Constant Field Values

TAG_FLASH

public static final int TAG_FLASH

0x0 = 0000000 = No Flash 0x1 = 0000001 = Fired 0x5 = 0000101 = Fired, Return not detected 0x7 = 0000111 = Fired, Return detected 0x9 = 0001001 = On 0xd = 0001101 = On, Return not detected 0xf = 0001111 = On, Return detected 0x10 = 0010000 = Off 0x18 = 0011000 = Auto, Did not fire 0x19 = 0011001 = Auto, Fired 0x1d = 0011101 = Auto, Fired, Return not detected 0x1f = 0011111 = Auto, Fired, Return detected 0x20 = 0100000 = No flash function 0x41 = 1000001 = Fired, Red-eye reduction 0x45 = 1000101 = Fired, Red-eye reduction, Return not detected 0x47 = 1000111 = Fired, Red-eye reduction, Return detected 0x49 = 1001001 = On, Red-eye reduction 0x4d = 1001101 = On, Red-eye reduction, Return not detected 0x4f = 1001111 = On, Red-eye reduction, Return detected 0x59 = 1011001 = Auto, Fired, Red-eye reduction 0x5d = 1011101 = Auto, Fired, Red-eye reduction, Return not detected 0x5f = 1011111 = Auto, Fired, Red-eye reduction, Return detected 6543210 (positions) This is a bitmask. 0 = flash fired 1 = return detected 2 = return able to be detected 3 = unknown 4 = auto used 5 = unknown 6 = red eye reduction used

See Also:

Constant Field Values

TAG_FOCAL_LENGTH

public static final int TAG_FOCAL_LENGTH

Focal length of lens used to take image. Unit is millimeter. Nice digital cameras actually save the focal length as a function of how far they are zoomed in.

See Also:

Constant Field Values

TAG_USER_COMMENT

public static final int TAG_USER_COMMENT

See Also:

Constant Field Values

TAG_SUBSECOND_TIME

public static final int TAG_SUBSECOND_TIME

See Also:

Constant Field Values

TAG_SUBSECOND_TIME_ORIGINAL

public static final int TAG_SUBSECOND_TIME_ORIGINAL

See Also:

Constant Field Values

TAG_SUBSECOND_TIME_DIGITIZED

public static final int TAG_SUBSECOND_TIME_DIGITIZED

See Also:

Constant Field Values

TAG_FLASHPIX_VERSION

public static final int TAG_FLASHPIX_VERSION

See Also:

Constant Field Values

TAG_COLOR_SPACE

public static final int TAG_COLOR_SPACE

Defines Color Space. DCF image must use sRGB color space so value is always '1'. If the picture uses the other color space, value is '65535':Uncalibrated.

See Also:

Constant Field Values

TAG_EXIF_IMAGE_WIDTH

public static final int TAG_EXIF_IMAGE_WIDTH

See Also:

Constant Field Values

TAG_EXIF_IMAGE_HEIGHT

public static final int TAG_EXIF_IMAGE_HEIGHT

See Also:

Constant Field Values

TAG_RELATED_SOUND_FILE

public static final int TAG_RELATED_SOUND_FILE

See Also:

Constant Field Values

TAG_FOCAL_PLANE_X_RES

public static final int TAG_FOCAL_PLANE_X_RES

See Also:

Constant Field Values

TAG_FOCAL_PLANE_Y_RES

public static final int TAG_FOCAL_PLANE_Y_RES

See Also:

Constant Field Values

TAG_FOCAL_PLANE_UNIT

public static final int TAG_FOCAL_PLANE_UNIT

Unit of FocalPlaneXResoluton/FocalPlaneYResolution. '1' means no-unit, '2' inch, '3' centimeter. Note: Some of Fujifilm's digicam(e.g.FX2700,FX2900,Finepix4700Z/40i etc) uses value '3' so it must be 'centimeter', but it seems that they use a '8.3mm?'(1/3in.?) to their ResolutionUnit. Fuji's BUG? Finepix4900Z has been changed to use value '2' but it doesn't match to actual value also.

See Also:

Constant Field Values

TAG_EXPOSURE_INDEX

public static final int TAG_EXPOSURE_INDEX

See Also:

Constant Field Values

TAG_SENSING_METHOD

public static final int TAG_SENSING_METHOD

See Also:

Constant Field Values

TAG_FILE_SOURCE

public static final int TAG_FILE_SOURCE

See Also:

Constant Field Values

TAG_SCENE_TYPE

public static final int TAG_SCENE_TYPE

See Also:

Constant Field Values

TAG_CFA_PATTERN

public static final int TAG_CFA_PATTERN

See Also:

Constant Field Values

TAG_CUSTOM_RENDERED

public static final int TAG_CUSTOM_RENDERED

This tag indicates the use of special processing on image data, such as rendering geared to output. When special processing is performed, the reader is expected to disable or minimize any further processing. Tag = 41985 (A401.H) Type = SHORT Count = 1 Default = 0 0 = Normal process 1 = Custom process Other = reserved

See Also:

Constant Field Values

TAG_EXPOSURE_MODE

public static final int TAG_EXPOSURE_MODE

This tag indicates the exposure mode set when the image was shot. In auto-bracketing mode, the camera shoots a series of frames of the same scene at different exposure settings. Tag = 41986 (A402.H) Type = SHORT Count = 1 Default = none 0 = Auto exposure 1 = Manual exposure 2 = Auto bracket Other = reserved

See Also:

Constant Field Values

TAG_WHITE_BALANCE_MODE

public static final int TAG_WHITE_BALANCE_MODE

This tag indicates the white balance mode set when the image was shot. Tag = 41987 (A403.H) Type = SHORT Count = 1 Default = none 0 = Auto white balance 1 = Manual white balance Other = reserved

See Also:

Constant Field Values

TAG_DIGITAL_ZOOM_RATIO

public static final int TAG_DIGITAL_ZOOM_RATIO

This tag indicates the digital zoom ratio when the image was shot. If the numerator of the recorded value is 0, this indicates that digital zoom was not used. Tag = 41988 (A404.H) Type = RATIONAL Count = 1 Default = none

See Also:

Constant Field Values

TAG_35MM_FILM_EQUIV_FOCAL_LENGTH

public static final int TAG_35MM_FILM_EQUIV_FOCAL_LENGTH

This tag indicates the equivalent focal length assuming a 35mm film camera, in mm. A value of 0 means the focal length is unknown. Note that this tag differs from the FocalLength tag. Tag = 41989 (A405.H) Type = SHORT Count = 1 Default = none

See Also:

Constant Field Values

TAG_SCENE_CAPTURE_TYPE

public static final int TAG_SCENE_CAPTURE_TYPE

This tag indicates the type of scene that was shot. It can also be used to record the mode in which the image was shot. Note that this differs from the scene type (SceneType) tag. Tag = 41990 (A406.H) Type = SHORT Count = 1 Default = 0 0 = Standard 1 = Landscape 2 = Portrait 3 = Night scene Other = reserved

See Also:

Constant Field Values

TAG_GAIN_CONTROL

public static final int TAG_GAIN_CONTROL

This tag indicates the degree of overall image gain adjustment. Tag = 41991 (A407.H) Type = SHORT Count = 1 Default = none 0 = None 1 = Low gain up 2 = High gain up 3 = Low gain down 4 = High gain down Other = reserved

See Also:

Constant Field Values

TAG_CONTRAST

public static final int TAG_CONTRAST

This tag indicates the direction of contrast processing applied by the camera when the image was shot. Tag = 41992 (A408.H) Type = SHORT Count = 1 Default = 0 0 = Normal 1 = Soft 2 = Hard Other = reserved

See Also:

Constant Field Values

TAG_SATURATION

public static final int TAG_SATURATION

This tag indicates the direction of saturation processing applied by the camera when the image was shot. Tag = 41993 (A409.H) Type = SHORT Count = 1 Default = 0 0 = Normal 1 = Low saturation 2 = High saturation Other = reserved

See Also:

Constant Field Values

TAG_SHARPNESS

public static final int TAG_SHARPNESS

This tag indicates the direction of sharpness processing applied by the camera when the image was shot. Tag = 41994 (A40A.H) Type = SHORT Count = 1 Default = 0 0 = Normal 1 = Soft 2 = Hard Other = reserved

See Also:

Constant Field Values

TAG_DEVICE_SETTING_DESCRIPTION

public static final int TAG_DEVICE_SETTING_DESCRIPTION

This tag indicates information on the picture-taking conditions of a particular camera model. The tag is used only to indicate the picture-taking conditions in the reader. Tag = 41995 (A40B.H) Type = UNDEFINED Count = Any Default = none The information is recorded in the format shown below. The data is recorded in Unicode using SHORT type for the number of display rows and columns and UNDEFINED type for the camera settings. The Unicode (UCS-2) string including Signature is NULL terminated. The specifics of the Unicode string are as given in ISO/IEC 10464-1. Length Type Meaning ------+-----------+------------------ 2 SHORT Display columns 2 SHORT Display rows Any UNDEFINED Camera setting-1 Any UNDEFINED Camera setting-2 : : : Any UNDEFINED Camera setting-n

See Also:

Constant Field Values

TAG_SUBJECT_DISTANCE_RANGE

public static final int TAG_SUBJECT_DISTANCE_RANGE

This tag indicates the distance to the subject. Tag = 41996 (A40C.H) Type = SHORT Count = 1 Default = none 0 = unknown 1 = Macro 2 = Close view 3 = Distant view Other = reserved

See Also:

Constant Field Values

TAG_WIN_TITLE

public static final int TAG_WIN_TITLE

The image title, as used by Windows XP.

See Also:

Constant Field Values

TAG_WIN_COMMENT

public static final int TAG_WIN_COMMENT

The image comment, as used by Windows XP.

See Also:

Constant Field Values

TAG_WIN_AUTHOR

public static final int TAG_WIN_AUTHOR

The image author, as used by Windows XP (called Artist in the Windows shell).

See Also:

Constant Field Values

TAG_WIN_KEYWORDS

public static final int TAG_WIN_KEYWORDS

The image keywords, as used by Windows XP.

See Also:

Constant Field Values

TAG_WIN_SUBJECT

public static final int TAG_WIN_SUBJECT

The image subject, as used by Windows XP.

See Also:

Constant Field Values

TAG_IMAGE_UNIQUE_ID

public static final int TAG_IMAGE_UNIQUE_ID

This tag indicates an identifier assigned uniquely to each image. It is recorded as an ASCII string equivalent to hexadecimal notation and 128-bit fixed length. Tag = 42016 (A420.H) Type = ASCII Count = 33 Default = none

See Also:

Constant Field Values

TAG_THUMBNAIL_IMAGE_WIDTH

public static final int TAG_THUMBNAIL_IMAGE_WIDTH

See Also:

Constant Field Values

TAG_THUMBNAIL_IMAGE_HEIGHT

public static final int TAG_THUMBNAIL_IMAGE_HEIGHT

See Also:

Constant Field Values

TAG_THUMBNAIL_DATA

public static final int TAG_THUMBNAIL_DATA

See Also:

Constant Field Values

TAG_FILL_ORDER

public static final int TAG_FILL_ORDER

1 = Normal 2 = Reversed

See Also:

Constant Field Values

TAG_DOCUMENT_NAME

public static final int TAG_DOCUMENT_NAME

See Also:

Constant Field Values

tagNameMap

protected static final HashMap tagNameMap

Constructor Detail

ExifDirectory

public ExifDirectory()

Method Detail

getName

public String getName()

Description copied from class: Directory

Provides the name of the directory, for display purposes. E.g. Exif

Specified by:

getName in class Directory

Returns:

the name of the directory

getTagNameMap

protected HashMap getTagNameMap()

Description copied from class: Directory

Provides the map of tag names, hashed by tag type identifier.

Specified by:

getTagNameMap in class Directory

Returns:

the map of tag names

getThumbnailData

public byte[] getThumbnailData()
                        throws MetadataException

Throws:

MetadataException

writeThumbnail

public void writeThumbnail(String filename)
                    throws MetadataException,
                           IOException

Throws:

MetadataException

IOException

containsThumbnail

public boolean containsThumbnail()