GDCM 2.2.1

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DecompressPixmap.java
/*=========================================================================
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.
=========================================================================*/
/*
* This example will take in a DICOM file, and tries to decompress it (actually write it
* as ImplicitVRLittleEndian Transfer Syntax).
*
* Compilation:
* $ CLASSPATH=gdcm.jar javac ../../gdcm/Examples/Java/DecompressPixmap.java -d .
*
* Usage:
* $ LD_LIBRARY_PATH=. CLASSPATH=gdcm.jar:. java DecompressPixmap gdcmData/012345.002.050.dcm out.dcm
*/
import gdcm.*;
public class DecompressPixmap
{
public static void main(String[] args) throws Exception
{
String file1 = args[0];
String file2 = args[1];
//PixmapReader reader = new PixmapReader();
ImageReader reader = new ImageReader();
reader.SetFileName( file1 );
boolean ret = reader.Read();
if( !ret )
{
throw new Exception("Could not read: " + file1 );
}
ImageChangeTransferSyntax change = new ImageChangeTransferSyntax();
change.SetTransferSyntax( new TransferSyntax(TransferSyntax.TSType.ImplicitVRLittleEndian) );
change.SetInput( reader.GetPixmap() );
if( !change.Change() )
{
throw new Exception("Could not change: " + file1 );
}
// When using a PixmapReader the following code crashes, I do not understand why (MM)
// Instead hack our way in, and use an ImageReader instead of a PixmapReader
//
// Hum looks like Java Covariant Return type is not working for some reason
//Pixmap out = ((PixmapToPixmapFilter)change).GetOutput(); // old syntax
Pixmap out2 = (Pixmap)change.GetOutput(); // new syntax
System.out.println( out2.toString() );
// Set the Source Application Entity Title
FileMetaInformation.SetSourceApplicationEntityTitle( "Just For Fun" );
PixmapWriter writer = new PixmapWriter();
writer.SetFileName( file2 );
writer.SetFile( reader.GetFile() );
//writer.SetImage( out );
writer.SetImage( out2 );
ret = writer.Write();
if( !ret )
{
throw new Exception("Could not write: " + file2 );
}
}
}