IFD (Bio-Formats API)

java.lang.Object
- java.util.AbstractMap<K,V>
- - java.util.HashMap<java.lang.Integer,java.lang.Object>
  - - loci.formats.tiff.IFD

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Integer,java.lang.Object>
```
public class IFD
extends java.util.HashMap<java.lang.Integer,java.lang.Object>
```
Data structure for working with TIFF Image File Directories (IFDs).

Author:

Curtis Rueden ctrueden at wisc.edu, Eric Kjellman egkjellman at wisc.edu, Melissa Linkert melissa at glencoesoftware.com, Chris Allan callan at blackcat.ca

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class java.util.AbstractMap
  java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>
- Nested classes/interfaces inherited from interface java.util.Map
  java.util.Map.Entry<K,V>

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`APERTURE_VALUE`
`static int`	`ARTIST`
`static int`	`BIG_TIFF`
`static int`	`BITS_PER_SAMPLE`
`static int`	`BRIGHTNESS_VALUE`
`static int`	`CELL_LENGTH`
`static int`	`CELL_WIDTH`
`static int`	`CFA_PATTERN`
`static int`	`COLOR_MAP`
`static int`	`COLOR_SPACE`
`static int`	`COMPONENTS_CONFIGURATION`
`static int`	`COMPRESSED_BITS_PER_PIXEL`
`static int`	`COMPRESSION`
`static int`	`CONTRAST`
`static int`	`COPYRIGHT`
`static int`	`CUSTOM_RENDERED`
`static int`	`DATE_TIME`
`static int`	`DATE_TIME_DIGITIZED`
`static int`	`DATE_TIME_ORIGINAL`
`static int`	`DIGITAL_ZOOM_RATIO`
`static int`	`DOCUMENT_NAME`
`static int`	`DOT_RANGE`
`static int`	`EXIF`
`static int`	`EXIF_VERSION`
`static int`	`EXPOSURE_BIAS_VALUE`
`static int`	`EXPOSURE_INDEX`
`static int`	`EXPOSURE_MODE`
`static int`	`EXPOSURE_PROGRAM`
`static int`	`EXPOSURE_TIME` EXIF tags.
`static int`	`EXTRA_SAMPLES`
`static int`	`F_NUMBER`
`static int`	`FILE_SOURCE`
`static int`	`FILL_ORDER`
`static int`	`FLASH`
`static int`	`FLASH_ENERGY`
`static int`	`FLASH_PIX_VERSION`
`static int`	`FOCAL_LENGTH`
`static int`	`FOCAL_LENGTH_35MM_FILM`
`static int`	`FOCAL_PLANE_RESOLUTION_UNIT`
`static int`	`FOCAL_PLANE_X_RESOLUTION`
`static int`	`FOCAL_PLANE_Y_RESOLUTION`
`static int`	`FREE_BYTE_COUNTS`
`static int`	`FREE_OFFSETS`
`static int`	`GAIN_CONTROL`
`static int`	`GRAY_RESPONSE_CURVE`
`static int`	`GRAY_RESPONSE_UNIT`
`static int`	`HALFTONE_HINTS`
`static int`	`HOST_COMPUTER`
`static int`	`IMAGE_DESCRIPTION`
`static int`	`IMAGE_LENGTH`
`static int`	`IMAGE_WIDTH`
`static int`	`INK_NAMES`
`static int`	`INK_SET`
`static int`	`ISO_SPEED_RATINGS`
`static int`	`JPEG_AC_TABLES`
`static int`	`JPEG_DC_TABLES`
`static int`	`JPEG_INTERCHANGE_FORMAT`
`static int`	`JPEG_INTERCHANGE_FORMAT_LENGTH`
`static int`	`JPEG_LOSSLESS_PREDICTORS`
`static int`	`JPEG_POINT_TRANSFORMS`
`static int`	`JPEG_PROC`
`static int`	`JPEG_Q_TABLES`
`static int`	`JPEG_RESTART_INTERVAL`
`static int`	`JPEG_TABLES`
`static int`	`LIGHT_SOURCE`
`static int`	`LITTLE_ENDIAN`
`private static org.slf4j.Logger`	`LOGGER`
`static int`	`MAKE`
`static int`	`MAKER_NOTE`
`static int`	`MAX_APERTURE_VALUE`
`static int`	`MAX_SAMPLE_VALUE`
`static int`	`METERING_MODE`
`static int`	`MIN_SAMPLE_VALUE`
`static int`	`MODEL`
`static int`	`NEW_SUBFILE_TYPE`
`static int`	`NUMBER_OF_INKS`
`static int`	`OECF`
`static int`	`ORIENTATION`
`static int`	`PAGE_NAME`
`static int`	`PAGE_NUMBER`
`static int`	`PHOTOMETRIC_INTERPRETATION`
`static int`	`PIXEL_X_DIMENSION`
`static int`	`PIXEL_Y_DIMENSION`
`static int`	`PLANAR_CONFIGURATION`
`static int`	`PREDICTOR`
`static int`	`PRIMARY_CHROMATICITIES`
`static int`	`REFERENCE_BLACK_WHITE`
`static int`	`RELATED_SOUND_FILE`
`static int`	`RESOLUTION_UNIT`
`static int`	`REUSE`
`static int`	`ROWS_PER_STRIP`
`static int`	`S_MAX_SAMPLE_VALUE`
`static int`	`S_MIN_SAMPLE_VALUE`
`static int`	`SAMPLE_FORMAT`
`static int`	`SAMPLES_PER_PIXEL`
`static int`	`SATURATION`
`static int`	`SCENE_CAPTURE_TYPE`
`static int`	`SCENE_TYPE`
`static int`	`SENSING_METHOD`
`static int`	`SHARPNESS`
`static int`	`SHUTTER_SPEED_VALUE`
`static int`	`SOFTWARE`
`static int`	`SPATIAL_FREQUENCY_RESPONSE`
`static int`	`SPECTRAL_SENSITIVITY`
`static int`	`STRIP_BYTE_COUNTS`
`static int`	`STRIP_OFFSETS`
`static int`	`SUB_IFD`
`static int`	`SUB_SEC_TIME`
`static int`	`SUB_SEC_TIME_DIGITIZED`
`static int`	`SUB_SEC_TIME_ORIGINAL`
`static int`	`SUBFILE_TYPE`
`static int`	`SUBJECT_DISTANCE`
`static int`	`SUBJECT_DISTANCE_RANGE`
`static int`	`SUBJECT_LOCATION`
`static int`	`T4_OPTIONS`
`static int`	`T6_OPTIONS`
`static int`	`TARGET_PRINTER`
`static int`	`THRESHHOLDING`
`static int`	`TILE_BYTE_COUNTS`
`static int`	`TILE_LENGTH`
`static int`	`TILE_OFFSETS`
`static int`	`TILE_WIDTH`
`static int`	`TRANSFER_FUNCTION`
`static int`	`TRANSFER_RANGE`
`static int`	`USER_COMMENT`
`static int`	`WHITE_BALANCE`
`static int`	`WHITE_POINT`
`static int`	`X_POSITION`
`static int`	`X_RESOLUTION`
`static int`	`Y_CB_CR_COEFFICIENTS`
`static int`	`Y_CB_CR_POSITIONING`
`static int`	`Y_CB_CR_SUB_SAMPLING`
`static int`	`Y_POSITION`
`static int`	`Y_RESOLUTION`

Constructor Summary

Constructors
Constructor and Description

IFD()

IFD(IFD ifd)

Constructors
Constructor and Description
`IFD()`
`IFD(IFD ifd)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int[]`	`getBitsPerSample()` Retrieves the image's bits per sample (TIFF tag BitsPerSample) from a given TIFF IFD.
`int[]`	`getBytesPerSample()` Retrieves the image's bytes per sample (derived from tag BitsPerSample) from this IFD.
`java.lang.String`	`getComment()` Convenience method for obtaining the ImageDescription from this IFD.
`TiffCompression`	`getCompression()` Retrieves the image's compression type (TIFF tag Compression) from this IFD.
`static java.lang.String`	`getFieldName(int value)` This method uses reflection to scan the values of this class's static fields, returning the first matching field's name.
`int[]`	`getIFDIntArray(int tag)` Gets the given directory entry values in int format from this IFD, performing some error checking.
`int`	`getIFDIntValue(int tag)` Gets the given directory entry value in int format from this IFD, or -1 if the given directory does not exist.
`int`	`getIFDIntValue(int tag, int defaultValue)` Gets the given directory entry value in int format from this IFD, performing some error checking.
`long[]`	`getIFDLongArray(int tag)` Gets the given directory entry values in long format from this IFD, performing some error checking.
`long`	`getIFDLongValue(int tag, long defaultValue)` Gets the given directory entry value in long format from this IFD, performing some error checking.
`TiffRational`	`getIFDRationalValue(int tag)` Gets the given directory entry value in rational format from this IFD, performing some error checking.
`short[]`	`getIFDShortArray(int tag)` Gets the given directory entry values in short format from this IFD, performing some error checking.
`java.lang.String`	`getIFDStringValue(int tag)` Gets the given directory entry value as a string from this IFD, performing some error checking.
`static java.lang.String`	`getIFDTagName(int tag)` Gets the name of the IFD tag encoded by the given number.
`java.lang.String`	`getIFDTextValue(int tag)` Gets the given directory entry value as a string (regardless of type).
`java.lang.Object`	`getIFDValue(int tag)` Gets the given directory entry value from this IFD.
`java.lang.Object`	`getIFDValue(int tag, java.lang.Class checkClass)` Gets the given directory entry value from this IFD, performing some error checking.
`long`	`getImageLength()` Retrieves the image's length (TIFF tag ImageLength) from a given TIFF IFD.
`long`	`getImageWidth()` Retrieves the image's width (TIFF tag ImageWidth) from a given TIFF IFD.
`OnDemandLongArray`	`getOnDemandStripOffsets()`
`PhotoInterp`	`getPhotometricInterpretation()` Retrieves the image's photometric interpretation (TIFF tag PhotometricInterpretation) from this IFD.
`int`	`getPixelType()` Retrieves the image's pixel type based on the BitsPerSample tag.
`int`	`getPlanarConfiguration()` Retrieves the image's planar configuration (TIFF tag PlanarConfiguration) from this IFD.
`int`	`getResolutionMultiplier()` Retrieve the value by which to multiply the X and Y resolution so that the resolutions are in microns per pixel.
`long[]`	`getRowsPerStrip()` Retrieves the number of rows per strip for image (TIFF tag RowsPerStrip) from this IFD.
`int`	`getSamplesPerPixel()` Retrieves the number of samples per pixel for the image (TIFF tag SamplesPerPixel) from this IFD.
`long[]`	`getStripByteCounts()` Retrieves strip byte counts for the image (TIFF tag StripByteCounts) from this IFD.
`long[]`	`getStripOffsets()` Retrieves the strip offsets for the image (TIFF tag StripOffsets) from this IFD.
`long`	`getTileLength()` Returns the length of an image tile.
`long`	`getTilesPerColumn()` Returns the number of image tiles per column.
`long`	`getTilesPerRow()` Returns the number of image tiles per row.
`long`	`getTileWidth()` Returns the width of an image tile.
`double`	`getXResolution()` Retrieve the X resolution (TIFF tag XResolution) from this IFD.
`double`	`getYResolution()` Retrieve the Y resolution (TIFF tag YResolution) from this IFD.
`boolean`	`isBigTiff()` Gets whether this is a BigTIFF IFD.
`boolean`	`isLittleEndian()` Gets whether the TIFF information in this IFD is little-endian.
`boolean`	`isTiled()`
`void`	`printIFD()` Prints the contents of this IFD.
`void`	`putIFDValue(int tag, int value)` Adds a directory entry of type SHORT to this IFD.
`void`	`putIFDValue(int tag, long value)` Adds a directory entry of type LONG to this IFD.
`void`	`putIFDValue(int tag, java.lang.Object value)` Adds a directory entry to this IFD.
`void`	`putIFDValue(int tag, short value)` Adds a directory entry of type BYTE to this IFD.

Methods inherited from class java.util.HashMap
clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap
equals, hashCode, toString

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map
equals, hashCode

- Field Detail
  - LOGGER
```
private static final org.slf4j.Logger LOGGER
```
  - LITTLE_ENDIAN
```
public static final int LITTLE_ENDIAN
```
    See Also:
    
    Constant Field Values
  - BIG_TIFF
```
public static final int BIG_TIFF
```
    See Also:
    
    Constant Field Values
  - REUSE
```
public static final int REUSE
```
    See Also:
    
    Constant Field Values
  - NEW_SUBFILE_TYPE
```
public static final int NEW_SUBFILE_TYPE
```
    See Also:
    
    Constant Field Values
  - SUBFILE_TYPE
```
public static final int SUBFILE_TYPE
```
    See Also:
    
    Constant Field Values
  - IMAGE_WIDTH
```
public static final int IMAGE_WIDTH
```
    See Also:
    
    Constant Field Values
  - IMAGE_LENGTH
```
public static final int IMAGE_LENGTH
```
    See Also:
    
    Constant Field Values
  - BITS_PER_SAMPLE
```
public static final int BITS_PER_SAMPLE
```
    See Also:
    
    Constant Field Values
  - COMPRESSION
```
public static final int COMPRESSION
```
    See Also:
    
    Constant Field Values
  - PHOTOMETRIC_INTERPRETATION
```
public static final int PHOTOMETRIC_INTERPRETATION
```
    See Also:
    
    Constant Field Values
  - THRESHHOLDING
```
public static final int THRESHHOLDING
```
    See Also:
    
    Constant Field Values
  - CELL_WIDTH
```
public static final int CELL_WIDTH
```
    See Also:
    
    Constant Field Values
  - CELL_LENGTH
```
public static final int CELL_LENGTH
```
    See Also:
    
    Constant Field Values
  - FILL_ORDER
```
public static final int FILL_ORDER
```
    See Also:
    
    Constant Field Values
  - DOCUMENT_NAME
```
public static final int DOCUMENT_NAME
```
    See Also:
    
    Constant Field Values
  - IMAGE_DESCRIPTION
```
public static final int IMAGE_DESCRIPTION
```
    See Also:
    
    Constant Field Values
  - MAKE
```
public static final int MAKE
```
    See Also:
    
    Constant Field Values
  - MODEL
```
public static final int MODEL
```
    See Also:
    
    Constant Field Values
  - STRIP_OFFSETS
```
public static final int STRIP_OFFSETS
```
    See Also:
    
    Constant Field Values
  - ORIENTATION
```
public static final int ORIENTATION
```
    See Also:
    
    Constant Field Values
  - SAMPLES_PER_PIXEL
```
public static final int SAMPLES_PER_PIXEL
```
    See Also:
    
    Constant Field Values
  - ROWS_PER_STRIP
```
public static final int ROWS_PER_STRIP
```
    See Also:
    
    Constant Field Values
  - STRIP_BYTE_COUNTS
```
public static final int STRIP_BYTE_COUNTS
```
    See Also:
    
    Constant Field Values
  - MIN_SAMPLE_VALUE
```
public static final int MIN_SAMPLE_VALUE
```
    See Also:
    
    Constant Field Values
  - MAX_SAMPLE_VALUE
```
public static final int MAX_SAMPLE_VALUE
```
    See Also:
    
    Constant Field Values
  - X_RESOLUTION
```
public static final int X_RESOLUTION
```
    See Also:
    
    Constant Field Values
  - Y_RESOLUTION
```
public static final int Y_RESOLUTION
```
    See Also:
    
    Constant Field Values
  - PLANAR_CONFIGURATION
```
public static final int PLANAR_CONFIGURATION
```
    See Also:
    
    Constant Field Values
  - PAGE_NAME
```
public static final int PAGE_NAME
```
    See Also:
    
    Constant Field Values
  - X_POSITION
```
public static final int X_POSITION
```
    See Also:
    
    Constant Field Values
  - Y_POSITION
```
public static final int Y_POSITION
```
    See Also:
    
    Constant Field Values
  - FREE_OFFSETS
```
public static final int FREE_OFFSETS
```
    See Also:
    
    Constant Field Values
  - FREE_BYTE_COUNTS
```
public static final int FREE_BYTE_COUNTS
```
    See Also:
    
    Constant Field Values
  - GRAY_RESPONSE_UNIT
```
public static final int GRAY_RESPONSE_UNIT
```
    See Also:
    
    Constant Field Values
  - GRAY_RESPONSE_CURVE
```
public static final int GRAY_RESPONSE_CURVE
```
    See Also:
    
    Constant Field Values
  - T4_OPTIONS
```
public static final int T4_OPTIONS
```
    See Also:
    
    Constant Field Values
  - T6_OPTIONS
```
public static final int T6_OPTIONS
```
    See Also:
    
    Constant Field Values
  - RESOLUTION_UNIT
```
public static final int RESOLUTION_UNIT
```
    See Also:
    
    Constant Field Values
  - PAGE_NUMBER
```
public static final int PAGE_NUMBER
```
    See Also:
    
    Constant Field Values
  - TRANSFER_FUNCTION
```
public static final int TRANSFER_FUNCTION
```
    See Also:
    
    Constant Field Values
  - SOFTWARE
```
public static final int SOFTWARE
```
    See Also:
    
    Constant Field Values
  - DATE_TIME
```
public static final int DATE_TIME
```
    See Also:
    
    Constant Field Values
  - ARTIST
```
public static final int ARTIST
```
    See Also:
    
    Constant Field Values
  - HOST_COMPUTER
```
public static final int HOST_COMPUTER
```
    See Also:
    
    Constant Field Values
  - PREDICTOR
```
public static final int PREDICTOR
```
    See Also:
    
    Constant Field Values
  - WHITE_POINT
```
public static final int WHITE_POINT
```
    See Also:
    
    Constant Field Values
  - PRIMARY_CHROMATICITIES
```
public static final int PRIMARY_CHROMATICITIES
```
    See Also:
    
    Constant Field Values
  - COLOR_MAP
```
public static final int COLOR_MAP
```
    See Also:
    
    Constant Field Values
  - HALFTONE_HINTS
```
public static final int HALFTONE_HINTS
```
    See Also:
    
    Constant Field Values
  - TILE_WIDTH
```
public static final int TILE_WIDTH
```
    See Also:
    
    Constant Field Values
  - TILE_LENGTH
```
public static final int TILE_LENGTH
```
    See Also:
    
    Constant Field Values
  - TILE_OFFSETS
```
public static final int TILE_OFFSETS
```
    See Also:
    
    Constant Field Values
  - TILE_BYTE_COUNTS
```
public static final int TILE_BYTE_COUNTS
```
    See Also:
    
    Constant Field Values
  - SUB_IFD
```
public static final int SUB_IFD
```
    See Also:
    
    Constant Field Values
  - INK_SET
```
public static final int INK_SET
```
    See Also:
    
    Constant Field Values
  - INK_NAMES
```
public static final int INK_NAMES
```
    See Also:
    
    Constant Field Values
  - NUMBER_OF_INKS
```
public static final int NUMBER_OF_INKS
```
    See Also:
    
    Constant Field Values
  - DOT_RANGE
```
public static final int DOT_RANGE
```
    See Also:
    
    Constant Field Values
  - TARGET_PRINTER
```
public static final int TARGET_PRINTER
```
    See Also:
    
    Constant Field Values
  - EXTRA_SAMPLES
```
public static final int EXTRA_SAMPLES
```
    See Also:
    
    Constant Field Values
  - SAMPLE_FORMAT
```
public static final int SAMPLE_FORMAT
```
    See Also:
    
    Constant Field Values
  - S_MIN_SAMPLE_VALUE
```
public static final int S_MIN_SAMPLE_VALUE
```
    See Also:
    
    Constant Field Values
  - S_MAX_SAMPLE_VALUE
```
public static final int S_MAX_SAMPLE_VALUE
```
    See Also:
    
    Constant Field Values
  - TRANSFER_RANGE
```
public static final int TRANSFER_RANGE
```
    See Also:
    
    Constant Field Values
  - JPEG_TABLES
```
public static final int JPEG_TABLES
```
    See Also:
    
    Constant Field Values
  - JPEG_PROC
```
public static final int JPEG_PROC
```
    See Also:
    
    Constant Field Values
  - JPEG_INTERCHANGE_FORMAT
```
public static final int JPEG_INTERCHANGE_FORMAT
```
    See Also:
    
    Constant Field Values
  - JPEG_INTERCHANGE_FORMAT_LENGTH
```
public static final int JPEG_INTERCHANGE_FORMAT_LENGTH
```
    See Also:
    
    Constant Field Values
  - JPEG_RESTART_INTERVAL
```
public static final int JPEG_RESTART_INTERVAL
```
    See Also:
    
    Constant Field Values
  - JPEG_LOSSLESS_PREDICTORS
```
public static final int JPEG_LOSSLESS_PREDICTORS
```
    See Also:
    
    Constant Field Values
  - JPEG_POINT_TRANSFORMS
```
public static final int JPEG_POINT_TRANSFORMS
```
    See Also:
    
    Constant Field Values
  - JPEG_Q_TABLES
```
public static final int JPEG_Q_TABLES
```
    See Also:
    
    Constant Field Values
  - JPEG_DC_TABLES
```
public static final int JPEG_DC_TABLES
```
    See Also:
    
    Constant Field Values
  - JPEG_AC_TABLES
```
public static final int JPEG_AC_TABLES
```
    See Also:
    
    Constant Field Values
  - Y_CB_CR_COEFFICIENTS
```
public static final int Y_CB_CR_COEFFICIENTS
```
    See Also:
    
    Constant Field Values
  - Y_CB_CR_SUB_SAMPLING
```
public static final int Y_CB_CR_SUB_SAMPLING
```
    See Also:
    
    Constant Field Values
  - Y_CB_CR_POSITIONING
```
public static final int Y_CB_CR_POSITIONING
```
    See Also:
    
    Constant Field Values
  - REFERENCE_BLACK_WHITE
```
public static final int REFERENCE_BLACK_WHITE
```
    See Also:
    
    Constant Field Values
  - COPYRIGHT
```
public static final int COPYRIGHT
```
    See Also:
    
    Constant Field Values
  - EXIF
```
public static final int EXIF
```
    See Also:
    
    Constant Field Values
  - EXPOSURE_TIME
```
public static final int EXPOSURE_TIME
```
    EXIF tags.
    
    See Also:
    
    Constant Field Values
  - F_NUMBER
```
public static final int F_NUMBER
```
    See Also:
    
    Constant Field Values
  - EXPOSURE_PROGRAM
```
public static final int EXPOSURE_PROGRAM
```
    See Also:
    
    Constant Field Values
  - SPECTRAL_SENSITIVITY
```
public static final int SPECTRAL_SENSITIVITY
```
    See Also:
    
    Constant Field Values
  - ISO_SPEED_RATINGS
```
public static final int ISO_SPEED_RATINGS
```
    See Also:
    
    Constant Field Values
  - OECF
```
public static final int OECF
```
    See Also:
    
    Constant Field Values
  - EXIF_VERSION
```
public static final int EXIF_VERSION
```
    See Also:
    
    Constant Field Values
  - DATE_TIME_ORIGINAL
```
public static final int DATE_TIME_ORIGINAL
```
    See Also:
    
    Constant Field Values
  - DATE_TIME_DIGITIZED
```
public static final int DATE_TIME_DIGITIZED
```
    See Also:
    
    Constant Field Values
  - COMPONENTS_CONFIGURATION
```
public static final int COMPONENTS_CONFIGURATION
```
    See Also:
    
    Constant Field Values
  - COMPRESSED_BITS_PER_PIXEL
```
public static final int COMPRESSED_BITS_PER_PIXEL
```
    See Also:
    
    Constant Field Values
  - SHUTTER_SPEED_VALUE
```
public static final int SHUTTER_SPEED_VALUE
```
    See Also:
    
    Constant Field Values
  - APERTURE_VALUE
```
public static final int APERTURE_VALUE
```
    See Also:
    
    Constant Field Values
  - BRIGHTNESS_VALUE
```
public static final int BRIGHTNESS_VALUE
```
    See Also:
    
    Constant Field Values
  - EXPOSURE_BIAS_VALUE
```
public static final int EXPOSURE_BIAS_VALUE
```
    See Also:
    
    Constant Field Values
  - MAX_APERTURE_VALUE
```
public static final int MAX_APERTURE_VALUE
```
    See Also:
    
    Constant Field Values
  - SUBJECT_DISTANCE
```
public static final int SUBJECT_DISTANCE
```
    See Also:
    
    Constant Field Values
  - METERING_MODE
```
public static final int METERING_MODE
```
    See Also:
    
    Constant Field Values
  - LIGHT_SOURCE
```
public static final int LIGHT_SOURCE
```
    See Also:
    
    Constant Field Values
  - FLASH
```
public static final int FLASH
```
    See Also:
    
    Constant Field Values
  - FOCAL_LENGTH
```
public static final int FOCAL_LENGTH
```
    See Also:
    
    Constant Field Values
  - MAKER_NOTE
```
public static final int MAKER_NOTE
```
    See Also:
    
    Constant Field Values
  - USER_COMMENT
```
public static final int USER_COMMENT
```
    See Also:
    
    Constant Field Values
  - SUB_SEC_TIME
```
public static final int SUB_SEC_TIME
```
    See Also:
    
    Constant Field Values
  - SUB_SEC_TIME_ORIGINAL
```
public static final int SUB_SEC_TIME_ORIGINAL
```
    See Also:
    
    Constant Field Values
  - SUB_SEC_TIME_DIGITIZED
```
public static final int SUB_SEC_TIME_DIGITIZED
```
    See Also:
    
    Constant Field Values
  - FLASH_PIX_VERSION
```
public static final int FLASH_PIX_VERSION
```
    See Also:
    
    Constant Field Values
  - COLOR_SPACE
```
public static final int COLOR_SPACE
```
    See Also:
    
    Constant Field Values
  - PIXEL_X_DIMENSION
```
public static final int PIXEL_X_DIMENSION
```
    See Also:
    
    Constant Field Values
  - PIXEL_Y_DIMENSION
```
public static final int PIXEL_Y_DIMENSION
```
    See Also:
    
    Constant Field Values
  - RELATED_SOUND_FILE
```
public static final int RELATED_SOUND_FILE
```
    See Also:
    
    Constant Field Values
  - FLASH_ENERGY
```
public static final int FLASH_ENERGY
```
    See Also:
    
    Constant Field Values
  - SPATIAL_FREQUENCY_RESPONSE
```
public static final int SPATIAL_FREQUENCY_RESPONSE
```
    See Also:
    
    Constant Field Values
  - FOCAL_PLANE_X_RESOLUTION
```
public static final int FOCAL_PLANE_X_RESOLUTION
```
    See Also:
    
    Constant Field Values
  - FOCAL_PLANE_Y_RESOLUTION
```
public static final int FOCAL_PLANE_Y_RESOLUTION
```
    See Also:
    
    Constant Field Values
  - FOCAL_PLANE_RESOLUTION_UNIT
```
public static final int FOCAL_PLANE_RESOLUTION_UNIT
```
    See Also:
    
    Constant Field Values
  - SUBJECT_LOCATION
```
public static final int SUBJECT_LOCATION
```
    See Also:
    
    Constant Field Values
  - EXPOSURE_INDEX
```
public static final int EXPOSURE_INDEX
```
    See Also:
    
    Constant Field Values
  - SENSING_METHOD
```
public static final int SENSING_METHOD
```
    See Also:
    
    Constant Field Values
  - FILE_SOURCE
```
public static final int FILE_SOURCE
```
    See Also:
    
    Constant Field Values
  - SCENE_TYPE
```
public static final int SCENE_TYPE
```
    See Also:
    
    Constant Field Values
  - CFA_PATTERN
```
public static final int CFA_PATTERN
```
    See Also:
    
    Constant Field Values
  - CUSTOM_RENDERED
```
public static final int CUSTOM_RENDERED
```
    See Also:
    
    Constant Field Values
  - EXPOSURE_MODE
```
public static final int EXPOSURE_MODE
```
    See Also:
    
    Constant Field Values
  - WHITE_BALANCE
```
public static final int WHITE_BALANCE
```
    See Also:
    
    Constant Field Values
  - DIGITAL_ZOOM_RATIO
```
public static final int DIGITAL_ZOOM_RATIO
```
    See Also:
    
    Constant Field Values
  - FOCAL_LENGTH_35MM_FILM
```
public static final int FOCAL_LENGTH_35MM_FILM
```
    See Also:
    
    Constant Field Values
  - SCENE_CAPTURE_TYPE
```
public static final int SCENE_CAPTURE_TYPE
```
    See Also:
    
    Constant Field Values
  - GAIN_CONTROL
```
public static final int GAIN_CONTROL
```
    See Also:
    
    Constant Field Values
  - CONTRAST
```
public static final int CONTRAST
```
    See Also:
    
    Constant Field Values
  - SATURATION
```
public static final int SATURATION
```
    See Also:
    
    Constant Field Values
  - SHARPNESS
```
public static final int SHARPNESS
```
    See Also:
    
    Constant Field Values
  - SUBJECT_DISTANCE_RANGE
```
public static final int SUBJECT_DISTANCE_RANGE
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - IFD
```
public IFD()
```
  - IFD
```
public IFD(IFD ifd)
```
- Method Detail
  - isBigTiff
```
public boolean isBigTiff()
                  throws FormatException
```
    Gets whether this is a BigTIFF IFD.
    
    Throws:
    
    FormatException
  - isLittleEndian
```
public boolean isLittleEndian()
                       throws FormatException
```
    Gets whether the TIFF information in this IFD is little-endian.
    
    Throws:
    
    FormatException
  - getIFDValue
```
public java.lang.Object getIFDValue(int tag)
```
    Gets the given directory entry value from this IFD.
  - getIFDValue
```
public java.lang.Object getIFDValue(int tag,
                                    java.lang.Class checkClass)
                             throws FormatException
```
    Gets the given directory entry value from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getIFDLongValue
```
public long getIFDLongValue(int tag,
                            long defaultValue)
                     throws FormatException
```
    Gets the given directory entry value in long format from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getIFDIntValue
```
public int getIFDIntValue(int tag)
```
    Gets the given directory entry value in int format from this IFD, or -1 if the given directory does not exist.
  - getIFDIntValue
```
public int getIFDIntValue(int tag,
                          int defaultValue)
                   throws FormatException
```
    Gets the given directory entry value in int format from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getIFDRationalValue
```
public TiffRational getIFDRationalValue(int tag)
                                 throws FormatException
```
    Gets the given directory entry value in rational format from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getIFDStringValue
```
public java.lang.String getIFDStringValue(int tag)
                                   throws FormatException
```
    Gets the given directory entry value as a string from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getIFDTextValue
```
public java.lang.String getIFDTextValue(int tag)
```
    Gets the given directory entry value as a string (regardless of type).
  - getIFDLongArray
```
public long[] getIFDLongArray(int tag)
                       throws FormatException
```
    Gets the given directory entry values in long format from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getIFDIntArray
```
public int[] getIFDIntArray(int tag)
                     throws FormatException
```
    Gets the given directory entry values in int format from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getIFDShortArray
```
public short[] getIFDShortArray(int tag)
                         throws FormatException
```
    Gets the given directory entry values in short format from this IFD, performing some error checking.
    
    Throws:
    
    FormatException
  - getComment
```
public java.lang.String getComment()
```
    Convenience method for obtaining the ImageDescription from this IFD.
  - getTileWidth
```
public long getTileWidth()
                  throws FormatException
```
    Returns the width of an image tile.
    
    Throws:
    
    FormatException
  - getTileLength
```
public long getTileLength()
                   throws FormatException
```
    Returns the length of an image tile.
    
    Throws:
    
    FormatException
  - getTilesPerRow
```
public long getTilesPerRow()
                    throws FormatException
```
    Returns the number of image tiles per row.
    
    Throws:
    
    FormatException
  - getTilesPerColumn
```
public long getTilesPerColumn()
                       throws FormatException
```
    Returns the number of image tiles per column.
    
    Throws:
    
    FormatException
  - isTiled
```
public boolean isTiled()
                throws FormatException
```
    Throws:
    
    FormatException
  - getImageWidth
```
public long getImageWidth()
                   throws FormatException
```
    Retrieves the image's width (TIFF tag ImageWidth) from a given TIFF IFD.
    
    Returns:
    
    the image's width.
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getImageLength
```
public long getImageLength()
                    throws FormatException
```
    Retrieves the image's length (TIFF tag ImageLength) from a given TIFF IFD.
    
    Returns:
    
    the image's length.
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getBitsPerSample
```
public int[] getBitsPerSample()
                       throws FormatException
```
    Retrieves the image's bits per sample (TIFF tag BitsPerSample) from a given TIFF IFD.
    
    Returns:
    
    the image's bits per sample. The length of the array is equal to the number of samples per pixel.
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
    
    See Also:
    
    getSamplesPerPixel()
  - getPixelType
```
public int getPixelType()
                 throws FormatException
```
    Retrieves the image's pixel type based on the BitsPerSample tag.
    
    Returns:
    
    the pixel type. This is one of:
    FormatTools.INT8
    
    FormatTools.UINT8
    
    FormatTools.INT16
    
    FormatTools.UINT16
    
    FormatTools.INT32
    
    FormatTools.UINT32
    
    FormatTools.FLOAT
    
    FormatTools.DOUBLE
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
    
    See Also:
    
    getBitsPerSample()
  - getBytesPerSample
```
public int[] getBytesPerSample()
                        throws FormatException
```
    Retrieves the image's bytes per sample (derived from tag BitsPerSample) from this IFD.
    
    Returns:
    
    the image's bytes per sample. The length of the array is equal to the number of samples per pixel.
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
    
    See Also:
    
    getSamplesPerPixel(), getBitsPerSample()
  - getSamplesPerPixel
```
public int getSamplesPerPixel()
                       throws FormatException
```
    Retrieves the number of samples per pixel for the image (TIFF tag SamplesPerPixel) from this IFD.
    
    Returns:
    
    the number of samples per pixel.
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getCompression
```
public TiffCompression getCompression()
                               throws FormatException
```
    Retrieves the image's compression type (TIFF tag Compression) from this IFD.
    Returns:
    the image's compression type. As of TIFF 6.0 this is one of:
    
    Uncompressed (1)
    
    CCITT 1D (2)
    
    Group 3 Fax (3)
    
    Group 4 Fax (4)
    
    LZW (5)
    
    JPEG (6)
    
    PackBits (32773)
    
    Other proprietary compression types are also possible; see TiffCompression for more details.
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getPhotometricInterpretation
```
public PhotoInterp getPhotometricInterpretation()
                                         throws FormatException
```
    Retrieves the image's photometric interpretation (TIFF tag PhotometricInterpretation) from this IFD.
    Returns:
    the image's photometric interpretation. As of TIFF 6.0 this is one of:
    
    WhiteIsZero (0)
    
    BlackIsZero (1)
    
    RGB (2)
    
    RGB Palette (3)
    
    Transparency mask (4)
    
    CMYK (5)
    
    YbCbCr (6)
    
    CIELab (8)
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getPlanarConfiguration
```
public int getPlanarConfiguration()
                           throws FormatException
```
    Retrieves the image's planar configuration (TIFF tag PlanarConfiguration) from this IFD.
    Returns:
    the image's planar configuration. As of TIFF 6.0 this is one of:
    
    Chunky (1)
    
    Planar (2)
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getStripOffsets
```
public long[] getStripOffsets()
                       throws FormatException
```
    Retrieves the strip offsets for the image (TIFF tag StripOffsets) from this IFD.
    
    Returns:
    
    the strip offsets for the image. The length of the array is equal to the number of strips per image. StripsPerImage = floor ((ImageLength + RowsPerStrip - 1) / RowsPerStrip).
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
    
    See Also:
    
    getStripByteCounts(), getRowsPerStrip()
  - getOnDemandStripOffsets
```
public OnDemandLongArray getOnDemandStripOffsets()
                                          throws FormatException
```
    Throws:
    
    FormatException
  - getStripByteCounts
```
public long[] getStripByteCounts()
                          throws FormatException
```
    Retrieves strip byte counts for the image (TIFF tag StripByteCounts) from this IFD.
    
    Returns:
    
    the byte counts for each strip. The length of the array is equal to the number of strips per image. StripsPerImage = floor((ImageLength + RowsPerStrip - 1) / RowsPerStrip).
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
    
    See Also:
    
    getStripOffsets()
  - getRowsPerStrip
```
public long[] getRowsPerStrip()
                       throws FormatException
```
    Retrieves the number of rows per strip for image (TIFF tag RowsPerStrip) from this IFD.
    
    Returns:
    
    the number of rows per strip.
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getResolutionMultiplier
```
public int getResolutionMultiplier()
```
    Retrieve the value by which to multiply the X and Y resolution so that the resolutions are in microns per pixel.
  - getXResolution
```
public double getXResolution()
                      throws FormatException
```
    Retrieve the X resolution (TIFF tag XResolution) from this IFD. The resolution will be normalized to microns per pixel.
    
    Returns:
    
    the X resolution, in microns per pixel
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - getYResolution
```
public double getYResolution()
                      throws FormatException
```
    Retrieve the Y resolution (TIFF tag YResolution) from this IFD. The resolution will be normalized to microns per pixel.
    
    Returns:
    
    the Y resolution, in microns per pixel
    
    Throws:
    
    FormatException - if there is a problem parsing the IFD metadata.
  - putIFDValue
```
public void putIFDValue(int tag,
                        java.lang.Object value)
```
    Adds a directory entry to this IFD.
  - putIFDValue
```
public void putIFDValue(int tag,
                        short value)
```
    Adds a directory entry of type BYTE to this IFD.
  - putIFDValue
```
public void putIFDValue(int tag,
                        int value)
```
    Adds a directory entry of type SHORT to this IFD.
  - putIFDValue
```
public void putIFDValue(int tag,
                        long value)
```
    Adds a directory entry of type LONG to this IFD.
  - printIFD
```
public void printIFD()
```
    Prints the contents of this IFD.
  - getIFDTagName
```
public static java.lang.String getIFDTagName(int tag)
```
    Gets the name of the IFD tag encoded by the given number.
  - getFieldName
```
public static java.lang.String getFieldName(int value)
```
    This method uses reflection to scan the values of this class's static fields, returning the first matching field's name. It is probably not very efficient, and is mainly intended for debugging.

Class IFD

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

Nested classes/interfaces inherited from interface java.util.Map

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.util.HashMap

Methods inherited from class java.util.AbstractMap

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Field Detail

LOGGER

LITTLE_ENDIAN

BIG_TIFF

REUSE

NEW_SUBFILE_TYPE

SUBFILE_TYPE

IMAGE_WIDTH

IMAGE_LENGTH

BITS_PER_SAMPLE

COMPRESSION

PHOTOMETRIC_INTERPRETATION

THRESHHOLDING

CELL_WIDTH

CELL_LENGTH

FILL_ORDER

DOCUMENT_NAME

IMAGE_DESCRIPTION

MAKE

MODEL

STRIP_OFFSETS

ORIENTATION

SAMPLES_PER_PIXEL

ROWS_PER_STRIP

STRIP_BYTE_COUNTS

MIN_SAMPLE_VALUE

MAX_SAMPLE_VALUE

X_RESOLUTION

Y_RESOLUTION

PLANAR_CONFIGURATION

PAGE_NAME

X_POSITION

Y_POSITION

FREE_OFFSETS

FREE_BYTE_COUNTS

GRAY_RESPONSE_UNIT

GRAY_RESPONSE_CURVE

T4_OPTIONS

T6_OPTIONS

RESOLUTION_UNIT

PAGE_NUMBER

TRANSFER_FUNCTION

SOFTWARE

DATE_TIME

ARTIST

HOST_COMPUTER

PREDICTOR

WHITE_POINT

PRIMARY_CHROMATICITIES

COLOR_MAP

HALFTONE_HINTS

TILE_WIDTH

TILE_LENGTH

TILE_OFFSETS

TILE_BYTE_COUNTS

SUB_IFD

INK_SET

INK_NAMES

NUMBER_OF_INKS

DOT_RANGE

TARGET_PRINTER

EXTRA_SAMPLES

SAMPLE_FORMAT

S_MIN_SAMPLE_VALUE

S_MAX_SAMPLE_VALUE

TRANSFER_RANGE

JPEG_TABLES

JPEG_PROC

JPEG_INTERCHANGE_FORMAT