GDCM 2.2.1

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CompressImage.cxx
/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*
*
*/
#include "gdcmImageReader.h"
#include "gdcmImage.h"
#include "gdcmWriter.h"
#include "gdcmAttribute.h"
#include "gdcmImageWriter.h"
#include "gdcmImageChangeTransferSyntax.h"
#include <iostream>
#include <fstream>
int main(int argc, char *argv[])
{
if( argc < 3 )
{
std::cerr << argv[0] << " input.dcm output.dcm" << std::endl;
return 1;
}
const char *filename = argv[1];
const char *outfilename = argv[2];
gdcm::ImageReader reader;
reader.SetFileName( filename );
if( !reader.Read() )
{
std::cerr << "Could not read: " << filename << std::endl;
return 1;
}
// The output of gdcm::Reader is a gdcm::File
//gdcm::File &file = reader.GetFile();
// the dataset is the the set of element we are interested in:
//gdcm::DataSet &ds = file.GetDataSet();
const gdcm::Image &image = reader.GetImage();
image.Print( std::cout );
gdcm::ImageChangeTransferSyntax change;
change.SetTransferSyntax( gdcm::TransferSyntax::JPEG2000Lossless );
change.SetTransferSyntax( gdcm::TransferSyntax::JPEGLosslessProcess14_1 );
//change.SetTransferSyntax( gdcm::TransferSyntax::JPEGBaselineProcess1 );
//change.SetTransferSyntax( image.GetTransferSyntax() );
change.SetInput( image );
bool b = change.Change();
if( !b )
{
std::cerr << "Could not change the Transfer Syntax" << std::endl;
return 1;
}
//std::ofstream out( outfilename );
//image.GetBuffer2(out);
//out.close();
gdcm::ImageWriter writer;
writer.SetImage( change.GetOutput() );
writer.SetFile( reader.GetFile() );
writer.SetFileName( outfilename );
if( !writer.Write() )
{
return 1;
}
return 0;
}