colorspace.boxes
Class ComponentMappingBox

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

public final class ComponentMappingBox

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.Vector	map
private int	nChannels

Fields inherited from class colorspace.boxes.JP2Box

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

Constructor Summary

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

Method Summary

private int	getCMP(byte[] mapping)
int	getCMP(int channel)
private short	getMTYP(byte[] mapping)
short	getMTYP(int channel) Return the channel type.
int	getNChannels()
private short	getPCOL(byte[] mapping)
short	getPCOL(int channel) Return the palette index for the channel.
(package 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

nChannels

private int nChannels

map

private java.util.Vector map

Constructor Detail

ComponentMappingBox

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

Construct a ComponentMappingBox 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

void readBox()
       throws java.io.IOException

Analyze the box content.

java.io.IOException

getNChannels

public int getNChannels()

getCMP

public int getCMP(int channel)

getMTYP

public short getMTYP(int channel)

Return the channel type.

getPCOL

public short getPCOL(int channel)

Return the palette index for the channel.

toString

public java.lang.String toString()

Return a suitable String representation of the class instance.

Overrides:

toString in class java.lang.Object

getCMP

private int getCMP(byte[] mapping)

getMTYP

private short getMTYP(byte[] mapping)

getPCOL

private short getPCOL(byte[] mapping)