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/*=========================================================================
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 "gdcmImageWriter.h"
#include "gdcmImageReader.h"
#include "gdcmImage.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"
#include "gdcmTrace.h"
#include "gdcmAttribute.h"
/*
Let's test the relation in between lossless transfer syntax and lossless compressed stream.
D_CLUNIE_CT1_J2KR.dcm
D_CLUNIE_CT1_J2KI.dcm
D_CLUNIE_MR1_JPLL.dcm
D_CLUNIE_MR1_JPLY.dcm
D_CLUNIE_CT1_JLSL.dcm
D_CLUNIE_CT1_JLSN.dcm
*/
struct LossLessTest
{
const char *lossyfile;
const char *losslessfile;
gdcm::TransferSyntax::TSType lossyts;
gdcm::TransferSyntax::TSType losslessts;
};
static const LossLessTest LossLessTestArray[] = {
{ "/D_CLUNIE_CT1_J2KI.dcm", "/D_CLUNIE_CT1_J2KR.dcm", gdcm::TransferSyntax::JPEG2000, gdcm::TransferSyntax::JPEG2000Lossless },
{ "/D_CLUNIE_MR1_JPLY.dcm", "/D_CLUNIE_MR1_JPLL.dcm", gdcm::TransferSyntax::JPEGExtendedProcess2_4, gdcm::TransferSyntax::JPEGLosslessProcess14_1 },
{ "/D_CLUNIE_CT1_JLSN.dcm", "/D_CLUNIE_CT1_JLSL.dcm", gdcm::TransferSyntax::JPEGLSNearLossless, gdcm::TransferSyntax::JPEGLSLossless }
};
int TestImageWriter2(int , char *[])
{
const char *directory = gdcm::Testing::GetDataRoot();
gdcm::Trace::WarningOff();
static const unsigned int ntests = sizeof( LossLessTestArray ) / sizeof( *LossLessTestArray );
for( unsigned int test = 0; test < ntests; ++test )
{
const LossLessTest <est = LossLessTestArray[test];
const char *j2k_filename1 = ltest.lossyfile;
const char *j2k_filename2 = ltest.losslessfile;
//const char j2k_filename1[] = "/D_CLUNIE_CT1_J2KI.dcm";
//const char j2k_filename2[] = "/D_CLUNIE_CT1_J2KR.dcm";
std::string filename_lossy = directory;
filename_lossy += j2k_filename1;
std::string filename_lossless = directory;
filename_lossless += j2k_filename2;
// Create directory first:
const char subdir[] = "TestImageWriter2";
std::string tmpdir = gdcm::Testing::GetTempDirectory( subdir );
if( !gdcm::System::FileIsDirectory( tmpdir.c_str() ) )
{
gdcm::System::MakeDirectory( tmpdir.c_str() );
//return 1;
}
std::string outfilename_lossy = gdcm::Testing::GetTempFilename( filename_lossy.c_str(), subdir );
std::string outfilename_lossless = gdcm::Testing::GetTempFilename( filename_lossless.c_str(), subdir );
{
gdcm::ImageReader reader;
reader.SetFileName( filename_lossy.c_str() );
if( !reader.Read() )
{
return 1;
}
gdcm::Image &ir = reader.GetImage();
if( !ir.IsLossy() )
{
std::cerr << "Image is not lossy" << std::endl;
std::cerr << filename_lossy << std::endl;
return 1;
}
//if( ir.GetTransferSyntax() != gdcm::TransferSyntax::JPEG2000 )
if( ir.GetTransferSyntax() != ltest.lossyts )
{
std::cerr << filename_lossy << " " << filename_lossless << std::endl;
std::cerr << ir.GetTransferSyntax() << " vs " << gdcm::TransferSyntax::GetTSString( ltest.lossyts ) << std::endl;
return 1;
}
//ir.SetTransferSyntax( gdcm::TransferSyntax::JPEG2000Lossless );
ir.SetTransferSyntax( ltest.losslessts );
gdcm::ImageWriter writer;
writer.SetImage( ir );
writer.SetFileName( outfilename_lossy.c_str() );
// We should never authorized writing of image that was lossy compress and declare as lossless
if( writer.Write() )
{
gdcm::Attribute<0x0028,0x2110> at;
at.Set( writer.GetFile().GetDataSet() );
if( at.GetValue() != "01" )
{
std::cerr << "We should never authorize writing of image that was lossy "
"compress and declare as lossless" << std::endl;
std::cerr << filename_lossy << " " << filename_lossless << std::endl;
return 1;
}
}
}
// But the contrary is ok:
{
gdcm::ImageReader reader;
reader.SetFileName( filename_lossless.c_str() );
if( !reader.Read() )
{
return 1;
}
gdcm::Image &ir = reader.GetImage();
//if( ir.GetTransferSyntax() != gdcm::TransferSyntax::JPEG2000Lossless )
if( ir.GetTransferSyntax() != ltest.losslessts )
{
return 1;
}
//ir.SetTransferSyntax( gdcm::TransferSyntax::JPEG2000 );
ir.SetTransferSyntax( ltest.lossyts );
gdcm::ImageWriter writer;
writer.SetImage( ir );
writer.SetFileName( outfilename_lossless.c_str() );
// It is ok to save a lossless file and declare transfer syntax to JPEG2000
if( !writer.Write() )
{
return 1;
}
}
}
#if 0
const gdcm::Image &ir = reader.GetImage();
gdcm::Image image;
image.SetNumberOfDimensions( ir.GetNumberOfDimensions() );
const unsigned int *dims = ir.GetDimensions();
image.SetDimension(0, dims[0] );
image.SetDimension(1, dims[1] );
const gdcm::PixelFormat &pixeltype = ir.GetPixelFormat();
image.SetPixelFormat( pixeltype );
const gdcm::PhotometricInterpretation &pi = ir.GetPhotometricInterpretation();
image.SetPhotometricInterpretation( pi );
unsigned long len = image.GetBufferLength();
assert( len = ir.GetBufferLength() );
std::vector<char> buffer;
buffer.resize(len); // black image
gdcm::ByteValue *bv = new gdcm::ByteValue(buffer);
gdcm::DataElement pixeldata( gdcm::Tag(0x7fe0,0x0010) );
pixeldata.SetValue( *bv );
image.SetDataElement( pixeldata );
const char filename[] = "toto.dcm";
gdcm::ImageWriter writer;
writer.SetImage( image );
writer.SetFileName( filename );
gdcm::File& file = writer.GetFile();
gdcm::DataSet& ds = file.GetDataSet();
gdcm::DataElement de( gdcm::Tag(0x0010,0x0010) );
const char s[] = "GDCM^Rocks";
de.SetByteValue( s, strlen( s ) );
ds.Insert( de );
if( !writer.Write() )
{
return 1;
}
return 0;
#endif
return 0;
}
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