colorspace.boxes
Class ChannelDefinitionBox

java.lang.Object
  |
  +--colorspace.boxes.JP2Box
        |
        +--colorspace.boxes.ChannelDefinitionBox

public final class ChannelDefinitionBox

extends JP2Box

This class maps the components in the codestream to channels in the image. It models the Component Mapping box in the JP2 header.

Nested Class Summary

Nested classes inherited from class colorspace.boxes.JP2Box

JP2Box.BoxType

Field Summary

private java.util.Hashtable	definitions
private int	ndefs

Fields inherited from class colorspace.boxes.JP2Box

boxEnd, boxStart, dataStart, eol, in, length, type

Constructor Summary

ChannelDefinitionBox(RandomAccessIO in, int boxStart)
Construct a ChannelDefinitionBox from an input image.

Method Summary

private int	getAsoc(byte[] bfr) Return the associated channel from the record.
int	getAsoc(int channel)
private int	getAsoc(int[] bfr)
private int	getCn(byte[] bfr) Return the channel from the record.
int	getCn(int asoc)
private int	getCn(int[] bfr)
int	getNDefs()
private int	getTyp(byte[] bfr) Return the channel type from the record.
int	getTyp(int channel)
private int	getTyp(int[] bfr)
private void	readBox() Analyze the box content.
java.lang.String	toString() Return a suitable String representation of the class instance.

Methods inherited from class colorspace.boxes.JP2Box

getTypeString, getTypeString

Methods inherited from class java.lang.Object

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

Field Detail

ndefs

private int ndefs

definitions

private java.util.Hashtable definitions

Constructor Detail

ChannelDefinitionBox

public ChannelDefinitionBox(RandomAccessIO in,
                            int boxStart)
                     throws java.io.IOException,
                            ColorSpaceException

Construct a ChannelDefinitionBox from an input image.

Parameters:

in - RandomAccessIO jp2 image

boxStart - offset to the start of the box in the image

Throws:

IOException, - ColorSpaceException

java.io.IOException

ColorSpaceException

Method Detail

readBox

private void readBox()
              throws java.io.IOException

Analyze the box content.

java.io.IOException

getNDefs

public int getNDefs()

getCn

public int getCn(int asoc)

getTyp

public int getTyp(int channel)

getAsoc

public int getAsoc(int channel)

toString

public java.lang.String toString()

Return a suitable String representation of the class instance.

Overrides:

toString in class java.lang.Object

getCn

private int getCn(byte[] bfr)

Return the channel from the record.

getTyp

private int getTyp(byte[] bfr)

Return the channel type from the record.

getAsoc

private int getAsoc(byte[] bfr)

Return the associated channel from the record.

getCn

private int getCn(int[] bfr)

getTyp

private int getTyp(int[] bfr)

getAsoc

private int getAsoc(int[] bfr)