loci.formats.codec

Class LosslessJPEGCodec

java.lang.Object

loci.formats.codec.BaseCodec

loci.formats.codec.LosslessJPEGCodec

All Implemented Interfaces:

Codec

public class LosslessJPEGCodec
extends BaseCodec

Decompresses lossless JPEG images.

Author:

Melissa Linkert melissa at glencoesoftware.com

Field Summary

Fields

Modifier and Type	Field and Description
private static int	COM
private static int	DAC
private static int	DHP
private static int	DHT
private static int	DNL
private static int	DQT
private static int	DRI
private static int	EOI
private static int	EXP
private static int	JPG
private static int	RST_0
private static int	RST_1
private static int	RST_2
private static int	RST_3
private static int	RST_4
private static int	RST_5
private static int	RST_6
private static int	RST_7
private static int	SOF0
private static int	SOF1
private static int	SOF10
private static int	SOF11
private static int	SOF13
private static int	SOF14
private static int	SOF15
private static int	SOF2
private static int	SOF3
private static int	SOF5
private static int	SOF6
private static int	SOF7
private static int	SOF9
private static int	SOI
private static int	SOS

Fields inherited from class loci.formats.codec.BaseCodec

LOGGER

Constructor Summary

Constructors

Constructor and Description
LosslessJPEGCodec()

Method Summary

Modifier and Type	Method and Description
byte[]	compress(byte[] data, CodecOptions options) Compresses a block of data.
byte[]	decompress(loci.common.RandomAccessInputStream in, CodecOptions options) The CodecOptions parameter should have the following fields set: interleaved littleEndian

Methods inherited from class loci.formats.codec.BaseCodec

compress, decompress, decompress, decompress, decompress, test

Methods inherited from class java.lang.Object

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

Field Detail

SOF0

private static final int SOF0

See Also:

Constant Field Values

SOF1

private static final int SOF1

See Also:

Constant Field Values

SOF2

private static final int SOF2

See Also:

Constant Field Values

SOF3

private static final int SOF3

See Also:

Constant Field Values

SOF5

private static final int SOF5

See Also:

Constant Field Values

SOF6

private static final int SOF6

See Also:

Constant Field Values

SOF7

private static final int SOF7

See Also:

Constant Field Values

JPG

private static final int JPG

See Also:

Constant Field Values

SOF9

private static final int SOF9

See Also:

Constant Field Values

SOF10

private static final int SOF10

See Also:

Constant Field Values

SOF11

private static final int SOF11

See Also:

Constant Field Values

SOF13

private static final int SOF13

See Also:

Constant Field Values

SOF14

private static final int SOF14

See Also:

Constant Field Values

SOF15

private static final int SOF15

See Also:

Constant Field Values

DHT

private static final int DHT

See Also:

Constant Field Values

DAC

private static final int DAC

See Also:

Constant Field Values

RST_0

private static final int RST_0

See Also:

Constant Field Values

RST_1

private static final int RST_1

See Also:

Constant Field Values

RST_2

private static final int RST_2

See Also:

Constant Field Values

RST_3

private static final int RST_3

See Also:

Constant Field Values

RST_4

private static final int RST_4

See Also:

Constant Field Values

RST_5

private static final int RST_5

See Also:

Constant Field Values

RST_6

private static final int RST_6

See Also:

Constant Field Values

RST_7

private static final int RST_7

See Also:

Constant Field Values

SOI

private static final int SOI

See Also:

Constant Field Values

EOI

private static final int EOI

See Also:

Constant Field Values

SOS

private static final int SOS

See Also:

Constant Field Values

DQT

private static final int DQT

See Also:

Constant Field Values

DNL

private static final int DNL

See Also:

Constant Field Values

DRI

private static final int DRI

See Also:

Constant Field Values

DHP

private static final int DHP

See Also:

Constant Field Values

EXP

private static final int EXP

See Also:

Constant Field Values

COM

private static final int COM

See Also:

Constant Field Values

Constructor Detail

LosslessJPEGCodec

public LosslessJPEGCodec()

Method Detail

compress

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

Description copied from interface: Codec

Compresses a block of data.

Parameters:

data - The data to be compressed.

options - Options to be used during compression, if appropriate.

Returns:

The compressed data.

Throws:

FormatException - If input is not a compressed data block of the appropriate type.

decompress

public byte[] decompress(loci.common.RandomAccessInputStream in,
                         CodecOptions options)
                  throws FormatException,
                         IOException

The CodecOptions parameter should have the following fields set: interleaved littleEndian

Specified by:

decompress in interface Codec

Specified by:

decompress in class BaseCodec

Parameters:

in - The stream from which to read compressed data.

options - Options to be used during decompression.

Returns:

The decompressed data.

Throws:

FormatException - If data is not valid compressed data for this decompressor.

IOException

See Also:

Codec.decompress(RandomAccessInputStream, CodecOptions)