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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkMetaDataObject.h"
#include "itkTestingMacros.h"
#include "itkTIFFImageIO.h"
int itkTIFFImageIOTestPalette(int argc, char * argv[])
{
if( argc != 5 )
{
std::cerr << "Usage: " << argv[0]
<< " input"
<< " output"
<< " expandRGBPalette"
<< " isPaletteImage" << std::endl;
return EXIT_FAILURE;
}
const unsigned int Dimension = 2;
typedef unsigned char ScalarPixelType;
typedef itk::Image< ScalarPixelType, Dimension > ScalarImageType;
typedef itk::ImageFileReader< ScalarImageType > ReaderType;
typedef itk::ImageFileWriter< ScalarImageType > WriterType;
typedef itk::TIFFImageIO IOType;
IOType::Pointer io = IOType::New();
ReaderType::Pointer reader = ReaderType::New();
WriterType::Pointer writer = WriterType::New();
EXERCISE_BASIC_OBJECT_METHODS( io, TIFFImageIO, ImageIOBase );
const bool expandRGBPalette = static_cast< bool >( atoi(argv[3]) );
const bool isPaletteImage = static_cast< bool >( atoi(argv[4]) );
TEST_SET_GET_BOOLEAN( io, ExpandRGBPalette, expandRGBPalette );
io->SetFileName( argv[1] );
reader->SetFileName( argv[1] );
reader->SetImageIO( io );
if( io->CanReadFile( "" ) )
{
std::cerr << "Test failed!" << std::endl;
std::cout << "No filename specified." << std::endl;
std::cout << "CanReadFile: "
<< "Expected false but got true" << std::endl;
return EXIT_FAILURE;
}
if( !io->SupportsDimension( Dimension ) )
{
std::cerr << "Test failed!" << std::endl;
std::cerr << "itk::TIFFImageIO does not support dimension: " << Dimension << std::endl;
return EXIT_FAILURE;
}
if( io->CanStreamRead() )
{
std::cout << "itk::TIFFImageIO can stream read" << std::endl;
}
else
{
std::cout << "itk::TIFFImageIO cannot stream read" << std::endl;
}
if( !io->CanReadFile( argv[1] ) )
{
std::cerr << "Test failed!" << std::endl;
std::cout << "itk::TIFFImageIO cannot read file "
<< argv[1] << std::endl;
return EXIT_FAILURE;
}
TRY_EXPECT_NO_EXCEPTION( reader->Update() );
// Try Palette reading and scalar image reading
if( io->GetExpandRGBPalette() )
{
if( isPaletteImage )
{
std::cout << "Input is a defined as palette image, expanding to RGB. " << std::endl;
}
else
{
std::cout << "Input is a defined as a non palette image. " << std::endl;
}
}
else
{
if( isPaletteImage )
{
std::cout << "Input is a defined as palette image, trying to read it as scalar. " << std::endl;
}
}
if( !io->GetExpandRGBPalette() && isPaletteImage )
{
if( io->GetIsReadAsScalarPlusPalette() )
{
std::cout << "Image read as Scalar." << std::endl;
IOType::PaletteType palette = io->GetColorPalette();
std::cout << "Palette: " << std::endl;
for( unsigned int i = 0; i < palette.size(); ++i )
{
std::cout << "[" << i << "]:" << palette[i] << std::endl;
}
}
else
{
std::cerr << "Test failed!" << std::endl;
std::cerr << "Cannot read data of this palette image as scalar."
<< std::endl;
return EXIT_FAILURE;
}
}
else
{
std::cout << "Image read as Greyscale (conversion)." << std::endl;
}
ScalarImageType::Pointer inputImage = reader->GetOutput();
// Try writing
writer->SetInput( inputImage );
writer->SetImageIO( io );
writer->SetFileName( argv[2] );
TRY_EXPECT_NO_EXCEPTION( writer->Update() );
// Exercise other methods
itk::ImageIOBase::SizeType pixelStride = io->GetPixelStride();
std::cout << "PixelStride: "
<< itk::NumericTraits< itk::ImageIOBase::SizeType >::PrintType( pixelStride )
<< std::endl;
// ToDo
// When the palette has made into the Metadata Dictionary (as opposed to the ImageIO):
// Use the MetaDataDictionary
// io->SetMetaDataDictionary();
// //
std::cout << "Test finished" << std::endl;
return EXIT_SUCCESS;
}
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