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itkSplitComponentsImageFilterTest.cxx
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itkSplitComponentsImageFilterTest.cxx
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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 "itkImage.h"
#include "itkImageFileWriter.h"
#include "itkImageRegionIteratorWithIndex.h"
#include "itkVector.h"
#include <sstream>
#include "itkSplitComponentsImageFilter.h"
int itkSplitComponentsImageFilterTest( int argc, char* argv[] )
{
if( argc < 2 )
{
std::cerr << "Usage: " << argv[0];
std::cerr << " outputImagePrefix ";
std::cerr << std::endl;
return EXIT_FAILURE;
}
const unsigned int Dimension = 2;
typedef signed short PixelType;
typedef itk::Image< PixelType, Dimension > OutputImageType;
typedef itk::Vector< PixelType, Dimension > VectorType;
typedef itk::Image< VectorType, Dimension > InputImageType;
// Size in every dimension of the output image.
const unsigned int sizes = 100;
InputImageType::Pointer input = InputImageType::New();
typedef InputImageType::RegionType RegionType;
RegionType region;
RegionType::IndexType index;
index.Fill( 0 );
region.SetIndex( index );
RegionType::SizeType size;
for( unsigned int i = 0; i < Dimension; i++ )
{
size[i] = sizes;
}
region.SetSize( size );
input->SetRegions( region );
input->Allocate();
itk::ImageRegionIteratorWithIndex< InputImageType > it( input, region );
VectorType vector;
for( it.GoToBegin(); !it.IsAtEnd(); ++it )
{
index = it.GetIndex();
vector[0] = index[0];
vector[1] = index[1];
it.Set( vector );
}
typedef itk::SplitComponentsImageFilter< InputImageType, OutputImageType,
Dimension >
FilterType;
FilterType::Pointer filter = FilterType::New();
filter->SetInput( input );
typedef itk::ImageFileWriter< OutputImageType > WriterType;
WriterType::Pointer writer = WriterType::New();
std::ostringstream ostr;
try
{
ostr << argv[1] << 0 << ".mha";
writer->SetFileName( ostr.str() );
writer->SetInput( filter->GetOutput() );
writer->Update();
ostr.str( "" );
ostr << argv[1] << 1 << ".mha";
writer->SetFileName( ostr.str() );
writer->SetInput( filter->GetOutput( 1 ) );
writer->Update();
}
catch (itk::ExceptionObject& ex)
{
std::cerr << "Exception caught!" << std::endl;
std::cerr << ex << std::endl;
return EXIT_FAILURE;
}
typedef FilterType::ComponentsMaskType ComponentsMaskType;
ComponentsMaskType componentsMask( false );
componentsMask[1] = true;
const ComponentsMaskType oldComponents = filter->GetComponentsMask();
if( oldComponents[0] != true )
{
std::cerr << "Did not get the expected default ComponentsMask." << std::endl;
return EXIT_FAILURE;
}
filter->SetComponentsMask( componentsMask );
const ComponentsMaskType newComponents = filter->GetComponentsMask();
if( newComponents[0] != false )
{
std::cerr << "Did not get the expected modified ComponentsMask." << std::endl;
return EXIT_FAILURE;
}
try
{
filter->Update();
}
catch (itk::ExceptionObject& ex)
{
std::cerr << "Exception caught!" << std::endl;
std::cerr << ex << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}