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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 "itkLabelImageToShapeLabelMapFilter.h"
#include "itkAttributePositionLabelMapFilter.h"
/** \class TestLabelObjectAccessor
* \brief a test accessor - to make kwstyle happy
*/
template< typename TLabelObject >
class TestLabelObjectAccessor
{
public:
typedef TLabelObject LabelObjectType;
typedef typename LabelObjectType::RegionType::IndexType AttributeValueType;
inline AttributeValueType operator()(const LabelObjectType *labelObject) const
{
return labelObject->GetBoundingBox().GetIndex();
}
};
int itkAttributePositionLabelMapFilterTest1(int argc, char * argv[])
{
if( argc != 3 )
{
std::cerr << "usage: " << argv[0] << " input output" << std::endl;
// std::cerr << " : " << std::endl;
exit(1);
}
// declare the dimension used, and the type of the input image
const int dim = 3;
typedef unsigned char PType;
typedef itk::Image< PType, dim > IType;
// We read the input image.
typedef itk::ImageFileReader< IType > ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
// And convert it to a LabelMap, with the shape attribute computed.
// We use the default label object type.
typedef itk::LabelImageToShapeLabelMapFilter< IType > I2LType;
I2LType::Pointer i2l = I2LType::New();
i2l->SetInput( reader->GetOutput() );
typedef itk::AttributePositionLabelMapFilter< I2LType::OutputImageType,
TestLabelObjectAccessor< I2LType::OutputImageType::LabelObjectType >, true >
OpeningType;
OpeningType::Pointer opening = OpeningType::New();
opening->SetInput( i2l->GetOutput() );
itk::SimpleFilterWatcher watcher(opening, "filter");
// the label map is then converted back to an label image.
typedef itk::LabelMapToLabelImageFilter< I2LType::OutputImageType, IType > L2IType;
L2IType::Pointer l2i = L2IType::New();
l2i->SetInput( opening->GetOutput() );
// write the result
typedef itk::ImageFileWriter< IType > WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetInput( l2i->GetOutput() );
writer->SetFileName( argv[2] );
writer->Update();
return 0;
}
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