CADI.Server.LogicalTarget.JPEG2000.Codestream
Class TagTreeEncoder

java.lang.Object
  CADI.Server.LogicalTarget.JPEG2000.Codestream.TagTreeEncoder

public class TagTreeEncoder
extends java.lang.Object

This class codifies a matrix using a Tag Tree structure. Usage example:
construct
encoder

Version:

1.1 2008/12/27

Author:

Group on Interactive Coding of Images (GICI)

Field Summary

private int	cols Number of columns Negative values are not allowed
private int	levels Number of levels Negative values are not allowed
private int	rows Number of rows Negative values are not allowed
private int[][][]	states Tag Tree States.
private int[][][]	tagTree Tag Tree values.

Constructor Summary

TagTreeEncoder(int[][] matrix)
Constructor with a matrix.

TagTreeEncoder(int rows, int cols)
Constructor with an empty matrix.

Method Summary

void	encoder(PacketHeaderDataOutputStream packetHeaderDataOutputStream, int t, int m, int n) Encode a value of the matrix.
void	list(java.io.PrintStream out) Prints this Tag Tree out to the specified output stream.
void	reset() Sets attributes to its initial values;
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

levels

private int levels

Number of levels

Negative values are not allowed

rows

private int rows

Number of rows

Negative values are not allowed

cols

private int cols

Number of columns

Negative values are not allowed

tagTree

private int[][][] tagTree

Tag Tree values. The first value index indicates the level of the tree, where the value 0 is the matrix to encoder, and value levels-1 is the root. The second index is the rows, and the third is the columns

Negative values are not allowed

states

private int[][][] states

Tag Tree States. The first value index indicates the level of the tree, where the value 0 is the matrix to encoder, and value levels-1 is the root. The second index is the rows, and the third is the columns

Negative values are not allowed

Constructor Detail

TagTreeEncoder

public TagTreeEncoder(int rows,
                      int cols)
               throws ErrorException

Constructor with an empty matrix.

Parameters:

rows - matrix rows

cols - matrix columns

Throws:

ErrorException - when rows or cols are negative

TagTreeEncoder

public TagTreeEncoder(int[][] matrix)
               throws ErrorException

Constructor with a matrix.

Parameters:

matrix - matrix to code

Throws:

ErrorException - when rows or cols are negative

Method Detail

encoder

public void encoder(PacketHeaderDataOutputStream packetHeaderDataOutputStream,
                    int t,
                    int m,
                    int n)
             throws ErrorException,
                    java.io.IOException

Encode a value of the matrix.

Parameters:

packetHeaderDataOutputStream - data output stream.

t - threshold

m - row of the value to be coded

n - column of the value to be coded

Throws:

ErrorException - when invalid dimensions are passed

java.io.IOException

reset

public void reset()

Sets attributes to its initial values;

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

list

public void list(java.io.PrintStream out)

Prints this Tag Tree out to the specified output stream. This method is useful for debugging.

Parameters:

out - an output stream.