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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 "itkDeformationFieldJacobianDeterminantFilter.h"
int main( int argc, char * argv[] )
{
if( argc < 3 )
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << " inputImageFile outputImageFile " << std::endl;
return EXIT_FAILURE;
}
// For now, this program runs on 3D deformation fields
typedef itk::Vector< float, 3 > InputPixelType;
typedef float OutputPixelType;
typedef itk::Image< InputPixelType, 3 > InputImageType;
typedef itk::Image< OutputPixelType, 3 > OutputImageType;
typedef itk::ImageFileReader< InputImageType > ReaderType;
typedef itk::DeformationFieldJacobianDeterminantFilter<
InputImageType > FilterType;
// Set up deformation field reader
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
// Connect deformation-to-Jacobian filter
FilterType::Pointer filter = FilterType::New();
filter->SetInput( reader->GetOutput() );
// filter->SetUseImageSpacingOn();
filter->Update();
typedef itk::ImageFileWriter< OutputImageType > WriterType;
// Write Jacobian determinant image.
WriterType::Pointer writer = WriterType::New();
writer->SetFileName( argv[2] );
writer->SetInput( filter->GetOutput() );
try
{
writer->Update();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << excp << std::endl;
}
return EXIT_SUCCESS;
}
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