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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 "itkWatershedImageFilter.h"
#include "itkWatershedEquivalenceRelabeler.h"
#include "itkWatershedBoundaryResolver.h"
#include "itkFilterWatcher.h"
#include "itkTestingMacros.h"
int itkWatershedImageFilterTest( int, char* [] )
{
const unsigned int Dimension = 2;
typedef float PixelType;
typedef itk::Image< PixelType, Dimension > ImageType2D;
typedef itk::Image< itk::IdentifierType, Dimension > LongImageType2D;
itk::ImageRegion< Dimension > region;
itk::Size< Dimension > size;
size[0] = 314;
size[1] = 314;
itk::Index< Dimension > origin;
origin[0] = 0;
origin[1] = 0;
region.SetSize( size );
region.SetIndex( origin );
ImageType2D::Pointer image2D = ImageType2D::New();
image2D->SetLargestPossibleRegion( region);
image2D->SetBufferedRegion( region );
image2D->SetRequestedRegion( region );
image2D->Allocate();
LongImageType2D::Pointer longimage2D = LongImageType2D::New();
longimage2D->SetRegions( region );
longimage2D->Allocate( true ); // initialize buffer to zero
itk::ImageRegionIterator< ImageType2D > it2D( image2D,
image2D->GetRequestedRegion() );
for( float q = 0.00f; !it2D.IsAtEnd(); ++it2D )
{
it2D.Value() = std::sin( q );
q += 0.10f;
}
// Test various objects associated to itk::WatershedImageFilter
//
// Test EquivalenceRelabeler
itk::EquivalencyTable::Pointer table = itk::EquivalencyTable::New();
itk::watershed::EquivalenceRelabeler<
LongImageType2D::PixelType, Dimension >::Pointer eq =
itk::watershed::EquivalenceRelabeler<
LongImageType2D::PixelType, Dimension >::New();
eq->SetInputImage( longimage2D );
eq->SetEquivalencyTable( table );
TEST_SET_GET_VALUE( table, eq->GetEquivalencyTable() );
TRY_EXPECT_NO_EXCEPTION( eq->Update() );
// Test WatershedMiniPipelineProgressCommand
// Forcing the execution of the const Execute method which is not normally called.
itk::WatershedMiniPipelineProgressCommand::Pointer wmppc =
itk::WatershedMiniPipelineProgressCommand::New();
EXERCISE_BASIC_OBJECT_METHODS( wmppc, WatershedMiniPipelineProgressCommand,
Command );
double count = 2.0;
wmppc->SetCount( count );
TEST_SET_GET_VALUE( count, wmppc->GetCount() );
unsigned int numberOfFilters = 2;
wmppc->SetNumberOfFilters( numberOfFilters );
TEST_SET_GET_VALUE( numberOfFilters, wmppc->GetNumberOfFilters() );
wmppc->SetFilter( eq );
TEST_SET_GET_VALUE( eq, wmppc->GetFilter() );
const itk::ProcessObject *constp = eq.GetPointer();
wmppc->Execute( constp, itk::ProgressEvent() );
wmppc->Execute( eq.GetPointer(), itk::ProgressEvent() );
// Test watershed::BoundaryResolver
itk::watershed::BoundaryResolver< PixelType, Dimension >::Pointer br =
itk::watershed::BoundaryResolver< PixelType, Dimension >::New();
if( br.IsNull() )
{
std::cerr << "Test failed!" << std::endl;
std::cout << "Null itk::watershed::BoundaryResolver." << std::endl;
return EXIT_FAILURE;
}
itk::watershed::Boundary< PixelType, 1 >::Pointer boundaryA =
itk::watershed::Boundary< PixelType, 1 >::New();
if( boundaryA.IsNull() )
{
std::cerr << "Test failed!" << std::endl;
std::cout << "Null itk::watershed::Boundary." << std::endl;
return EXIT_FAILURE;
}
itk::watershed::Boundary< PixelType, 1 >::Pointer boundaryB =
itk::watershed::Boundary< PixelType, 1 >::New();
if( boundaryB.IsNull() )
{
std::cerr << "Test failed!" << std::endl;
std::cout << "Null itk::watershed::Boundary." << std::endl;
return EXIT_FAILURE;
}
itk::WatershedImageFilter< ImageType2D >::Pointer watershedFilter =
itk::WatershedImageFilter< ImageType2D >::New();
EXERCISE_BASIC_OBJECT_METHODS( watershedFilter, WatershedImageFilter,
ImageToImageFilter );
FilterWatcher watchIt( watershedFilter, "WatershedImageFilter" );
double threshold = .05;
watershedFilter->SetThreshold( threshold );
TEST_SET_GET_VALUE( threshold, watershedFilter->GetThreshold() );
double level = 1.0;
watershedFilter->SetLevel( level );
TEST_SET_GET_VALUE( level, watershedFilter->GetLevel() );
watershedFilter->SetInput( image2D );
TRY_EXPECT_NO_EXCEPTION( watershedFilter->Update() );
std::cout << "Test finished." << std::endl;
return EXIT_SUCCESS;
}
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