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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 "gdcmImageApplyLookupTable.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"
#include "gdcmImageReader.h"
#include "gdcmImageWriter.h"
#include "gdcmImage.h"
#include "gdcmFilename.h"
static const char * const lutarray[][2] = {
{ "d613050ca0f9c924fb5282d140281fcc", "LEADTOOLS_FLOWERS-8-PAL-RLE.dcm" },
{ "d613050ca0f9c924fb5282d140281fcc", "LEADTOOLS_FLOWERS-8-PAL-Uncompressed.dcm" },
{ "7b8d795eaf99f1fff176c43f9cf76bfb", "NM-PAL-16-PixRep1.dcm" },
{ "47715f0a5d5089268bbef6f83251a8ad", "OT-PAL-8-face.dcm" },
{ "c70309b66045140b8e08c11aa319c0ab", "US-PAL-8-10x-echo.dcm" },
{ "c370ca934dc910eb4b629a2fa8650b67", "gdcm-US-ALOKA-16.dcm" },
{ "49ca8ad45fa7f24b0406a5a03ba8aff6", "rle16loo.dcm" },
{ "964ea27345a7004325896d34b257f289", "rle16sti.dcm" },
// sentinel
{ nullptr, nullptr }
};
int TestImageApplyLookupTableFunc(const char *filename, bool verbose = false)
{
gdcm::ImageReader reader;
reader.SetFileName( filename );
if ( !reader.Read() )
{
const gdcm::FileMetaInformation &header = reader.GetFile().GetHeader();
gdcm::MediaStorage ms = header.GetMediaStorage();
bool isImage = gdcm::MediaStorage::IsImage( ms );
bool pixeldata = reader.GetFile().GetDataSet().FindDataElement( gdcm::Tag(0x7fe0,0x0010) );
if( isImage && pixeldata )
{
std::cout << "Could not read: " << filename << std::endl;
return 1;
}
return 0;
}
const gdcm::Image &image = reader.GetImage();
const gdcm::PhotometricInterpretation &pi = image.GetPhotometricInterpretation();
if( pi != gdcm::PhotometricInterpretation::PALETTE_COLOR )
{
// yeah well not much I can do here...
if( verbose )
{
std::cout << "PhotometricInterpretation is: " << pi << " cannot apply LUT then..." << std::endl;
}
return 0;
}
gdcm::ImageApplyLookupTable lutfilt;
lutfilt.SetInput( image );
bool b = lutfilt.Apply();
if( !b )
{
std::cerr << "Could not apply lut: " << filename << std::endl;
return 1;
}
// Create directory first:
const char subdir[] = "TestImageApplyLookupTable";
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 = gdcm::Testing::GetTempFilename( filename, subdir );
gdcm::ImageWriter writer;
writer.SetFileName( outfilename.c_str() );
writer.SetFile( reader.GetFile() );
writer.SetImage( lutfilt.GetOutput() );
if( !writer.Write() )
{
std::cerr << "Failed to write: " << outfilename << std::endl;
return 1;
}
// Let's read that file back in !
gdcm::ImageReader reader2;
reader2.SetFileName( outfilename.c_str() );
if ( !reader2.Read() )
{
std::cerr << "Failed to read back: " << outfilename << std::endl;
return 1;
}
const gdcm::Image &img = reader2.GetImage();
unsigned long len = img.GetBufferLength();
char* buffer = new char[len];
img.GetBuffer(buffer);
gdcm::Filename fn( filename );
const char *name = fn.GetName();
unsigned int i = 0;
const char *p = lutarray[i][1];
while( p != nullptr )
{
if( strcmp( name, p ) == 0 )
{
break;
}
++i;
p = lutarray[i][1];
}
const char *ref = lutarray[i][0];
char digest[33] = {};
gdcm::Testing::ComputeMD5(buffer, len, digest);
int res = 0;
if( !ref )
{
std::cerr << "Missing LUT-applied MD5 for image from: " << filename << std::endl;
res = 1;
}
else if( strcmp(digest, ref) != 0 )
{
std::cerr << "Problem reading image from: " << filename << std::endl;
std::cerr << "Found " << digest << " instead of " << ref << std::endl;
res = 1;
}
delete[] buffer;
return res;
}
int TestImageApplyLookupTable(int argc, char *argv[])
{
if( argc == 2 )
{
const char *filename = argv[1];
return TestImageApplyLookupTableFunc(filename, true);
}
// else
gdcm::Trace::DebugOff();
gdcm::Trace::WarningOff();
int r = 0, i = 0;
const char *filename;
const char * const *filenames = gdcm::Testing::GetFileNames();
while( (filename = filenames[i]) )
{
r += TestImageApplyLookupTableFunc( filename );
++i;
}
return r;
}
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