org.jpedal.jbig2

Class JBIG2Decoder

java.lang.Object

org.jpedal.jbig2.JBIG2Decoder

public class JBIG2Decoder
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
JBIG2Decoder() Constructor

Method Summary

Modifier and Type	Method and Description
void	cleanupPostDecode()
void	decodeJBIG2(byte[] data) Decodes a JBIG2 image from a byte array
void	decodeJBIG2(java.io.DataInput dataInput) Decodes a JBIG2 image from a DataInput
void	decodeJBIG2(java.io.File file) Decodes a JBIG2 image from a File object
void	decodeJBIG2(java.io.InputStream inputStream) Decodes a JBIG2 image from an InputStream
void	decodeJBIG2(java.lang.String file) Decodes a JBIG2 image from a String path
PageInformationSegment	findPageSegement(int page)
Segment	findSegment(int segmentNumber)
java.util.List	getAllSegments()
int	getNumberOfPages()
java.awt.image.BufferedImage	getPageAsBufferedImage(int page)
JBIG2Bitmap	getPageAsJBIG2Bitmap(int page)
boolean	isNumberOfPagesKnown()
boolean	isRandomAccessOrganisationUsed()
void	setGlobalData(byte[] data) If the data stream is taken from a PDF, there may be some global data.

Methods inherited from class java.lang.Object

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

Constructor Detail

JBIG2Decoder

public JBIG2Decoder()

Constructor

Method Detail

setGlobalData

public void setGlobalData(byte[] data)
                   throws java.io.IOException,
                          JBIG2Exception

If the data stream is taken from a PDF, there may be some global data. Pass any global data in here. Call this method before decodeJBIG2(...)

Parameters:

data - global data

Throws:

java.io.IOException

JBIG2Exception

decodeJBIG2

public void decodeJBIG2(java.io.File file)
                 throws java.io.IOException,
                        JBIG2Exception

Decodes a JBIG2 image from a File object

Parameters:

file - File to decode

Throws:

java.io.IOException

JBIG2Exception

decodeJBIG2

public void decodeJBIG2(java.lang.String file)
                 throws java.io.IOException,
                        JBIG2Exception

Decodes a JBIG2 image from a String path

Parameters:

file - Must be the full path to the image

Throws:

java.io.IOException

JBIG2Exception

decodeJBIG2

public void decodeJBIG2(java.io.InputStream inputStream)
                 throws java.io.IOException,
                        JBIG2Exception

Decodes a JBIG2 image from an InputStream

Parameters:

inputStream - InputStream

Throws:

java.io.IOException

JBIG2Exception

decodeJBIG2

public void decodeJBIG2(java.io.DataInput dataInput)
                 throws java.io.IOException,
                        JBIG2Exception

Decodes a JBIG2 image from a DataInput

Parameters:

dataInput - DataInput

Throws:

java.io.IOException

JBIG2Exception

decodeJBIG2

public void decodeJBIG2(byte[] data)
                 throws java.io.IOException,
                        JBIG2Exception

Decodes a JBIG2 image from a byte array

Parameters:

data - the raw data stream

Throws:

java.io.IOException

JBIG2Exception

cleanupPostDecode

public void cleanupPostDecode()

getPageAsBufferedImage

public java.awt.image.BufferedImage getPageAsBufferedImage(int page)

Parameters:

page -

Returns:

isNumberOfPagesKnown

public boolean isNumberOfPagesKnown()

getNumberOfPages

public int getNumberOfPages()

getAllSegments

public java.util.List getAllSegments()

findPageSegement

public PageInformationSegment findPageSegement(int page)

findSegment

public Segment findSegment(int segmentNumber)

getPageAsJBIG2Bitmap

public JBIG2Bitmap getPageAsJBIG2Bitmap(int page)

isRandomAccessOrganisationUsed

public boolean isRandomAccessOrganisationUsed()