loci.formats.tiff

Enum TiffCompression

java.lang.Object

java.lang.Enum<TiffCompression>

loci.formats.tiff.TiffCompression

All Implemented Interfaces:

Serializable, Comparable<TiffCompression>, CodedEnum

public enum TiffCompression
extends Enum<TiffCompression>
implements CodedEnum

Utility class for performing compression operations with a TIFF file.

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

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALT_JPEG
ALT_JPEG2000
CCITT_1D
DEFAULT_UNCOMPRESSED
DEFLATE
GROUP_3_FAX
GROUP_4_FAX
JPEG
JPEG_2000
JPEG_2000_LOSSY
LURAWAVE
LZW
NIKON
OLD_JPEG
OLYMPUS_JPEG2000
PACK_BITS
PROPRIETARY_DEFLATE
THUNDERSCAN
UNCOMPRESSED

Field Summary

Fields

Modifier and Type	Field and Description
private int	code Code for the TIFF compression in the actual TIFF file.
private Codec	codec TIFF compression codec.
private String	codecName Name of the TIFF compression codec.
private static org.slf4j.Logger	LOGGER
private static Map<Integer,TiffCompression>	lookup Reverse lookup of code to TIFF compression enumerate value.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	compress(byte[] input, CodecOptions options) Encodes a strip of data.
byte[]	decompress(byte[] input, CodecOptions options) Decodes a strip of data.
static void	difference(byte[] input, IFD ifd) Performs in-place differencing according to the given predictor value.
static TiffCompression	get(int code) Retrieves a TIFF compression instance by code.
int	getCode() Retrieves the integer "code" for this enumeration.
String	getCodecName() Retrieves the name of the TIFF compression codec.
CodecOptions	getCompressionCodecOptions(IFD ifd) Creates a set of codec options for compression.
CodecOptions	getCompressionCodecOptions(IFD ifd, CodecOptions opt) Creates a set of codec options for compression.
private static Map<Integer,TiffCompression>	getCompressionMap()
static void	undifference(byte[] input, IFD ifd) Undoes in-place differencing according to the given predictor value.
static TiffCompression	valueOf(String name) Returns the enum constant of this type with the specified name.
static TiffCompression[]	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

DEFAULT_UNCOMPRESSED

public static final TiffCompression DEFAULT_UNCOMPRESSED

UNCOMPRESSED

public static final TiffCompression UNCOMPRESSED

CCITT_1D

public static final TiffCompression CCITT_1D

GROUP_3_FAX

public static final TiffCompression GROUP_3_FAX

GROUP_4_FAX

public static final TiffCompression GROUP_4_FAX

LZW

public static final TiffCompression LZW

OLD_JPEG

public static final TiffCompression OLD_JPEG

JPEG

public static final TiffCompression JPEG

PACK_BITS

public static final TiffCompression PACK_BITS

PROPRIETARY_DEFLATE

public static final TiffCompression PROPRIETARY_DEFLATE

DEFLATE

public static final TiffCompression DEFLATE

THUNDERSCAN

public static final TiffCompression THUNDERSCAN

JPEG_2000

public static final TiffCompression JPEG_2000

JPEG_2000_LOSSY

public static final TiffCompression JPEG_2000_LOSSY

ALT_JPEG2000

public static final TiffCompression ALT_JPEG2000

ALT_JPEG

public static final TiffCompression ALT_JPEG

OLYMPUS_JPEG2000

public static final TiffCompression OLYMPUS_JPEG2000

NIKON

public static final TiffCompression NIKON

LURAWAVE

public static final TiffCompression LURAWAVE

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

code

private int code

Code for the TIFF compression in the actual TIFF file.

codec

private Codec codec

TIFF compression codec.

codecName

private String codecName

Name of the TIFF compression codec.

lookup

private static final Map<Integer,TiffCompression> lookup

Reverse lookup of code to TIFF compression enumerate value.

Method Detail

values

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

Returns:

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

valueOf

public static TiffCompression 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

getCompressionMap

private static Map<Integer,TiffCompression> getCompressionMap()

get

public static TiffCompression get(int code)

Retrieves a TIFF compression instance by code.

Parameters:

code - Integer "code" for the TIFF compression type.

Returns:

See above.

getCode

public int getCode()

Description copied from interface: CodedEnum

Retrieves the integer "code" for this enumeration. It is expected that the code be unique across the enumerated type.

Specified by:

getCode in interface CodedEnum

Returns:

See above.

getCodecName

public String getCodecName()

Retrieves the name of the TIFF compression codec.

Returns:

See above.

decompress

public byte[] decompress(byte[] input,
                CodecOptions options)
                  throws FormatException,
                         IOException

Decodes a strip of data.

Throws:

FormatException

IOException

undifference

public static void undifference(byte[] input,
                IFD ifd)
                         throws FormatException

Undoes in-place differencing according to the given predictor value.

Throws:

FormatException

getCompressionCodecOptions

public CodecOptions getCompressionCodecOptions(IFD ifd)
                                        throws FormatException

Creates a set of codec options for compression.

Parameters:

ifd - The IFD to create codec options for.

Returns:

A new codec options instance populated using metadata from ifd.

Throws:

FormatException

getCompressionCodecOptions

public CodecOptions getCompressionCodecOptions(IFD ifd,
                                      CodecOptions opt)
                                        throws FormatException

Creates a set of codec options for compression.

Parameters:

ifd - The IFD to create codec options for.

opt - The codec options to copy.

Returns:

A new codec options instance populated using metadata from ifd.

Throws:

FormatException

compress

public byte[] compress(byte[] input,
              CodecOptions options)
                throws FormatException,
                       IOException

Encodes a strip of data.

Throws:

FormatException

IOException

difference

public static void difference(byte[] input,
              IFD ifd)
                       throws FormatException

Performs in-place differencing according to the given predictor value.

Throws:

FormatException