com.pd4ml.cache.img

Class TiffParser

java.lang.Object

com.pd4ml.cache.img.TiffParser

All Implemented Interfaces:

Serializable

public class TiffParser
extends Object
implements Serializable

A class representing an Image File Directory (IFD) from a TIFF 6.0 stream. The TIFF file format is described in more detail in the comments for the TIFFDescriptor class.

A TIFF IFD consists of a set of TIFFField tags. Methods are provided to query the set of tags and to obtain the raw field array. In addition, convenience methods are provided for acquiring the values of tags that contain a single value that fits into a byte, int, long, float, or double.

Every TIFF file is made up of one or more public IFDs that are joined in a linked list, rooted in the file header. A file may also contain so-called private IFDs that are referenced from tag data and do not appear in the main list.

This class is not a committed part of the JAI API. It may be removed or changed in future releases of JAI.

See Also:

TiffField, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	COMPRESSION_CCITTFAX3
static int	COMPRESSION_CCITTFAX4
static int	TIFFTAG_COMPRESSION
static int	TIFFTAG_IMAGELENGTH
static int	TIFFTAG_IMAGEWIDTH
static int	TIFFTAG_ROWSPERSTRIP
static int	TIFFTAG_STRIPBYTECOUNTS
static int	TIFFTAG_STRIPOFFSETS
static int	TIFFTAG_TILEWIDTH

Constructor Summary

Constructors

Constructor and Description
TiffParser(com.pd4ml.util.RandomAccessArray stream, int directory)
TiffParser(com.pd4ml.util.RandomAccessArray stream, long ifd_offset, int directory)

Method Summary

Modifier and Type	Method and Description
static long[]	getArrayLongShort(TiffParser dir, int tag)
TiffField	getField(int tag)
byte	getFieldAsByte(int tag)
byte	getFieldAsByte(int tag, int index)
double	getFieldAsDouble(int tag)
double	getFieldAsDouble(int tag, int index)
float	getFieldAsFloat(int tag)
float	getFieldAsFloat(int tag, int index)
long	getFieldAsLong(int tag)
long	getFieldAsLong(int tag, int index)
TiffField[]	getFields()
long	getIFDOffset()
long	getNextIFDOffset()
static int	getNumDirectories(com.pd4ml.util.RandomAccessArray stream)
int	getNumEntries()
int[]	getTags()
boolean	isBigEndian()
boolean	isTagPresent(int tag)

Methods inherited from class java.lang.Object

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

Field Detail

TIFFTAG_IMAGEWIDTH

public static final int TIFFTAG_IMAGEWIDTH

See Also:

Constant Field Values

TIFFTAG_IMAGELENGTH

public static final int TIFFTAG_IMAGELENGTH

See Also:

Constant Field Values

TIFFTAG_COMPRESSION

public static final int TIFFTAG_COMPRESSION

See Also:

Constant Field Values

COMPRESSION_CCITTFAX3

public static final int COMPRESSION_CCITTFAX3

See Also:

Constant Field Values

COMPRESSION_CCITTFAX4

public static final int COMPRESSION_CCITTFAX4

See Also:

Constant Field Values

TIFFTAG_STRIPOFFSETS

public static final int TIFFTAG_STRIPOFFSETS

See Also:

Constant Field Values

TIFFTAG_ROWSPERSTRIP

public static final int TIFFTAG_ROWSPERSTRIP

See Also:

Constant Field Values

TIFFTAG_STRIPBYTECOUNTS

public static final int TIFFTAG_STRIPBYTECOUNTS

See Also:

Constant Field Values

TIFFTAG_TILEWIDTH

public static final int TIFFTAG_TILEWIDTH

See Also:

Constant Field Values

Constructor Detail

TiffParser

public TiffParser(com.pd4ml.util.RandomAccessArray stream,
                  int directory)
           throws IOException

Throws:

IOException

TiffParser

public TiffParser(com.pd4ml.util.RandomAccessArray stream,
                  long ifd_offset,
                  int directory)
           throws IOException

Throws:

IOException

Method Detail

getNumEntries

public int getNumEntries()

getField

public TiffField getField(int tag)

isTagPresent

public boolean isTagPresent(int tag)

getTags

public int[] getTags()

getFields

public TiffField[] getFields()

getFieldAsByte

public byte getFieldAsByte(int tag,
                           int index)

getFieldAsByte

public byte getFieldAsByte(int tag)

getFieldAsLong

public long getFieldAsLong(int tag,
                           int index)

getFieldAsLong

public long getFieldAsLong(int tag)

getFieldAsFloat

public float getFieldAsFloat(int tag,
                             int index)

getFieldAsFloat

public float getFieldAsFloat(int tag)

getFieldAsDouble

public double getFieldAsDouble(int tag,
                               int index)

getFieldAsDouble

public double getFieldAsDouble(int tag)

getNumDirectories

public static int getNumDirectories(com.pd4ml.util.RandomAccessArray stream)
                             throws IOException

Throws:

IOException

isBigEndian

public boolean isBigEndian()

getIFDOffset

public long getIFDOffset()

getNextIFDOffset

public long getNextIFDOffset()

getArrayLongShort

public static long[] getArrayLongShort(TiffParser dir,
                                       int tag)