loci.formats.codec
Class PackbitsCodec

java.lang.Object
  loci.formats.codec.BaseCodec
      loci.formats.codec.PackbitsCodec

All Implemented Interfaces:

Codec

public class PackbitsCodec
extends BaseCodec
implements Codec

This class implements packbits decompression. Compression is not yet implemented.

Source code:

Trac, SVN

Author:

Melissa Linkert linkert at wisc.edu

Constructor Summary

PackbitsCodec()

Method Summary

byte[]	compress(byte[] data, int x, int y, int[] dims, Object options) Compresses a block of Packbits data.
byte[]	decompress(byte[] input, Object options) Decodes a PackBits (Macintosh RLE) compressed image.

Methods inherited from class loci.formats.codec.BaseCodec

compress, decompress, decompress, decompress, test

Methods inherited from class java.lang.Object

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

Methods inherited from interface loci.formats.codec.Codec

compress, decompress, decompress, decompress

Constructor Detail

PackbitsCodec

public PackbitsCodec()

Method Detail

compress

public byte[] compress(byte[] data,
                       int x,
                       int y,
                       int[] dims,
                       Object options)
                throws loci.formats.FormatException

Compresses a block of Packbits data. Currently not supported.

Specified by:

compress in interface Codec

Parameters:

data - the data to be compressed

x - length of the x dimension of the image data, if appropriate

y - length of the y dimension of the image data, if appropriate

dims - the dimensions of the image data, if appropriate

options - options to be used during compression, if appropriate

Returns:

The compressed data

Throws:

loci.formats.FormatException - If input is not an Adobe data block.

decompress

public byte[] decompress(byte[] input,
                         Object options)
                  throws loci.formats.FormatException

Decodes a PackBits (Macintosh RLE) compressed image. Adapted from the TIFF 6.0 specification, page 42.

Specified by:

decompress in interface Codec

Parameters:

input - input data to be decompressed

options - Options to be used during decompression.

Returns:

The decompressed data

Throws:

loci.formats.FormatException - if data is not valid compressed data for this decompressor