ITK  5.4.0
Insight Toolkit
SphinxExamples/src/Core/Transform/DeformAVolumeWithAThinPlateSpline/Code.cxx
/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 "itkPointSet.h"
#include "itkMesh.h"
int
main(int argc, char * argv[])
{
if (argc != 6)
{
std::cerr << "Usage: " << argv[0];
std::cerr << " <SourceLandmarks>";
std::cerr << " <TargetLandmarks>";
std::cerr << " <InputImage>";
std::cerr << " <DeformedImage>";
std::cerr << " <CheckerBoardImage>";
std::cerr << std::endl;
return EXIT_FAILURE;
}
const char * sourceLandmarksFile = argv[1];
const char * targetLandmarksFile = argv[2];
const char * inputImageFile = argv[3];
const char * deformedImageFile = argv[4];
const char * checkerboardImageFile = argv[5];
constexpr unsigned int Dimension = 3;
using CoordinateRepType = double;
using PointSetType = TransformType::PointSetType;
using PixelType = unsigned char;
auto sourceLandmarks = PointSetType::New();
auto targetLandmarks = PointSetType::New();
ImageType::Pointer inputImage;
try
{
auto sourceLandmarksMesh = itk::ReadMesh<MeshType>(sourceLandmarksFile);
sourceLandmarks->SetPoints(sourceLandmarksMesh->GetPoints());
auto targetLandmarksMesh = itk::ReadMesh<MeshType>(targetLandmarksFile);
targetLandmarks->SetPoints(targetLandmarksMesh->GetPoints());
inputImage = itk::ReadImage<ImageType>(inputImageFile);
}
catch (itk::ExceptionObject & error)
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
auto thinPlateSpline = TransformType::New();
thinPlateSpline->SetSourceLandmarks(sourceLandmarks);
thinPlateSpline->SetTargetLandmarks(targetLandmarks);
thinPlateSpline->ComputeWMatrix();
auto resampler = ResamplerType::New();
resampler->SetInput(inputImage);
auto interpolator = InterpolatorType::New();
resampler->SetInterpolator(interpolator);
resampler->SetUseReferenceImage(true);
resampler->SetReferenceImage(inputImage);
resampler->SetTransform(thinPlateSpline);
using CheckerBoardFilterType = itk::CheckerBoardImageFilter<ImageType>;
auto checkerboardFilter = CheckerBoardFilterType::New();
checkerboardFilter->SetInput1(inputImage);
checkerboardFilter->SetInput2(resampler->GetOutput());
try
{
resampler->Update();
checkerboardFilter->Update();
itk::WriteImage(resampler->GetOutput(), deformedImageFile);
itk::WriteImage(checkerboardFilter->GetOutput(), checkerboardImageFile);
}
catch (itk::ExceptionObject & error)
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
Pointer
SmartPointer< Self > Pointer
Definition: itkAddImageFilter.h:93
itkImageFileReader.h
itk::CheckerBoardImageFilter
Combines two images in a checkerboard pattern.
Definition: itkCheckerBoardImageFilter.h:46
itkImage.h
itkThinPlateSplineKernelTransform.h
itk::ThinPlateSplineKernelTransform
Definition: itkThinPlateSplineKernelTransform.h:35
itk::LinearInterpolateImageFunction
Linearly interpolate an image at specified positions.
Definition: itkLinearInterpolateImageFunction.h:51
itkMeshFileReader.h
itkCheckerBoardImageFilter.h
itkMesh.h
itkImageFileWriter.h
itk::Mesh
Implements the N-dimensional mesh structure.
Definition: itkMesh.h:126
itk::ResampleImageFilter
Resample an image via a coordinate transform.
Definition: itkResampleImageFilter.h:90
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:88
itkPointSet.h
New
static Pointer New()
itkResampleImageFilter.h
itk::GTest::TypedefsAndConstructors::Dimension2::Dimension
constexpr unsigned int Dimension
Definition: itkGTestTypedefsAndConstructors.h:44
itk::WriteImage
ITK_TEMPLATE_EXPORT void WriteImage(TImagePointer &&image, const std::string &filename, bool compress=false)
Definition: itkImageFileWriter.h:256