Package com.idrsolutions.image.jpeg2000

Class Jpeg2000Decoder

java.lang.Object

com.idrsolutions.image.JDeliImage

com.idrsolutions.image.jpeg2000.Jpeg2000Decoder

All Implemented Interfaces:

com.idrsolutions.image.Decoder

public class Jpeg2000Decoder
extends com.idrsolutions.image.JDeliImage
implements com.idrsolutions.image.Decoder

Class reads JPEG2000 images as BufferedImage //Make NO assumptions about type of BufferedImage type returned as this may change

Example:

 Jpeg2000Decoder decoder = new Jpeg2000Decoder();
 BufferedImage decodedImage = decoder.read(jpxByteData);
 

Field Summary

Fields inherited from class com.idrsolutions.image.JDeliImage

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Constructor Summary

Constructors

Constructor	Description
Jpeg2000Decoder()

Method Summary

Modifier and Type	Method	Description
com.idrsolutions.image.jpeg2000.data.Info	getInfo()
BufferedImage	read(byte[] jpxRawData)	Make NO assumptions about BufferedImage type returned as it may change
BufferedImage	read(File file)	Make NO assumptions about BufferedImage type returned as it may change
byte[]	readComponentsAsUnConvertedBytes(byte[] jpxRawData)	Not recommended for external use.
Rectangle	readDimension(byte[] jp2RawData)	Decodes and returns the width and height of jpeg2000 image
Rectangle	readDimension(File file)	Decodes and returns the width and height of jpeg2000 image
static void	updatePrecinctInfo(com.idrsolutions.image.jpeg2000.data.TileResolution resolution, int r, int ppx, int ppy)

Methods inherited from class com.idrsolutions.image.JDeliImage

optimiseImage

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.idrsolutions.image.Decoder

getImageCount, getImageCount, readEmbeddedThumbnail, readEmbeddedThumbnail, readImageAt, readImageAt, readImageSpecificMetaData, readImageSpecificMetaData, setMetadata

Constructor Details

Jpeg2000Decoder

public Jpeg2000Decoder()

Method Details

read

public BufferedImage read(byte[] jpxRawData)
                   throws Exception

Make NO assumptions about BufferedImage type returned as it may change

Decodes and returns the JPEG2000 image as a BufferedImage.

Specified by:

read in interface com.idrsolutions.image.Decoder

Parameters:

jpxRawData - byte[] array containing the JPEG2000 data to be decoded

Returns:

BufferedImage The decoded image

Throws:

Exception - A Exception

readDimension

public Rectangle readDimension(File file)
                        throws Exception

Decodes and returns the width and height of jpeg2000 image

Specified by:

readDimension in interface com.idrsolutions.image.Decoder

Parameters:

file - image image contained in raw data if present

Returns:

width and height of image

Throws:

Exception - if problem reading image

readDimension

public Rectangle readDimension(byte[] jp2RawData)
                        throws Exception

Decodes and returns the width and height of jpeg2000 image

Specified by:

readDimension in interface com.idrsolutions.image.Decoder

Parameters:

jp2RawData - image image contained in raw data if present

Returns:

Rectangle width and height of image

Throws:

Exception - if problem reading image

getInfo

public com.idrsolutions.image.jpeg2000.data.Info getInfo()

read

public BufferedImage read(File file)
                   throws Exception

Make NO assumptions about BufferedImage type returned as it may change

Decodes and returns the JPEG2000 image as a BufferedImage.

Specified by:

read in interface com.idrsolutions.image.Decoder

Parameters:

file - file containing the JPEG2000 data to be decoded

Returns:

BufferedImage The decoded image

Throws:

Exception - A Exception

updatePrecinctInfo

public static void updatePrecinctInfo(com.idrsolutions.image.jpeg2000.data.TileResolution resolution,
 int r,
 int ppx,
 int ppy)

readComponentsAsUnConvertedBytes

public byte[] readComponentsAsUnConvertedBytes(byte[] jpxRawData)
                                        throws Exception

Not recommended for external use.

Decodes JPEG2000 image data as un-converted RGB/gray image bytes

Parameters:

jpxRawData - byte[] array containing the raw JPEG data

Returns:

un-converted byte[]

Throws:

Exception - Provides for different exceptions thrown under java Lang package