Isis::JP2Encoder Class Reference

JPEG2000 encoder class. More...

#include <JP2Encoder.h>

Collaboration diagram for Isis::JP2Encoder:

Public Member Functions
	JP2Encoder (const QString &jp2file, const unsigned int nsamps, const unsigned int nlines, const unsigned int nbands, const Isis::PixelType type)
	Constructs a JPEG2000 encoder object.
	~JP2Encoder ()
	JP2Encoder destructor.
JP2Error *	kakadu_error () const
void	OpenFile ()
	Open the JPEG2000 file and initialize it.
void	Write (unsigned char **inbuf)
	Write 8-bit data to JP2 file.
void	Write (short int **inbuf)
	Write 16-bit data to JP2 file.

Detailed Description

JPEG2000 encoder class.

This class is used to convert image data into JPEG2000 format.

Here is an example of how to use JP2Encoder

char **jp2buf;
ProcessExport p;
Cube *icube;
JP2Encoder *JP2_encoder;
icube = p.SetInputCube("FROM",Isis::OneBand);
p.SetInputRange();
p.setFormat(ProcessExport::BIL);
jp2buf = new char* [1];
jp2buf[0] = new char[icube->Samples()];
p.SetOutputType(Isis::UnsignedByte);
p.SetOutputRange(1.0,255.0);
p.SetOutputNull(0.0);
JP2_encoder = new JP2Encoder(ui.GetFileName("TO"),icube->Samples(),
              icube->Lines(),icube->Bands(),Isis::UnsignedByte);
JP2_encoder->OpenFile();
p.StartProcess(toJP2);
p.EndProcess();
delete JP2_encoder;

If you would like to see JP2Encoder being used in implementation, see isis2std.cpp

Author

2009-01-11 Janet Barrett

Constructor & Destructor Documentation

JP2Encoder()

Isis::JP2Encoder::JP2Encoder	(	const QString &	jp2file,
		const unsigned int	nsamps,
		const unsigned int	nlines,
		const unsigned int	nbands,
		const Isis::PixelType	type )

Constructs a JPEG2000 encoder object.

Parameters

jp2file	Name of file where the encoded JP2 data will be stored.
nsamps	Sample dimension of image that will be encoded.
nlines	Line dimension of image that will be encoded.
nbands	Band dimension of image that will be encoded.
type	Pixel type of data that will be encoded.

References _FILEINFO_, Isis::IException::Programmer, Isis::SignedWord, Isis::UnsignedByte, and Isis::UnsignedWord.

~JP2Encoder()

Isis::JP2Encoder::~JP2Encoder

(

)

JP2Encoder destructor.

Member Function Documentation

kakadu_error()

JP2Error * Isis::JP2Encoder::kakadu_error ( ) const

inline

OpenFile()

void Isis::JP2Encoder::OpenFile

(

)

Open the JPEG2000 file and initialize it.

References INCREMENTAL_FLUSH_BYTES, MAX_STRIPE_HEIGHT, and MIN_STRIPE_HEIGHT.

Referenced by Isis::JP2Exporter::write().

Write() [1/2]

void Isis::JP2Encoder::Write

(

short int **

inbuf

)

Write 16-bit data to JP2 file.

Parameters

inbuf

The array of pointers to byte buffers that will be used to write out the image data. One byte buffer is required for each band in the image. Kakadu writes in a BIL manner.

Write() [2/2]

void Isis::JP2Encoder::Write

(

unsigned char **

inbuf

)

Write 8-bit data to JP2 file.

Parameters

inbuf

The array of pointers to byte buffers that will be used to write out the image data. One byte buffer is required for each band in the image. Kakadu writes in a BIL manner.

Referenced by Isis::JP2Exporter::writeLine().

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The documentation for this class was generated from the following files:

• /Users/astamile/ISIS3/isis/src/base/objs/JP2Encoder/JP2Encoder.h
• /Users/astamile/ISIS3/isis/src/base/objs/JP2Encoder/JP2Encoder.cpp