ITK  5.3.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageCompose/ComposeVectorFromThreeScalarImages/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
*
* 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.
*
*=========================================================================*/
#if ITK_VERSION_MAJOR < 4
# include "itkCompose3DCovariantVectorImageFilter.h"
#else
#endif
using VectorImageType = itk::Image<itk::CovariantVector<float, 3>, 2>;
using ScalarImageType = itk::Image<float, 2>;
static void
CreateImage(ScalarImageType::Pointer image);
int
main(int, char *[])
{
ScalarImageType::Pointer image = ScalarImageType::New();
CreateImage(image);
#if ITK_VERSION_MAJOR < 4
using ComposeCovariantVectorImageFilterType =
itk::Compose3DCovariantVectorImageFilter<ScalarImageType, VectorImageType>;
#else
using ComposeCovariantVectorImageFilterType = itk::ComposeImageFilter<ScalarImageType, VectorImageType>;
#endif
ComposeCovariantVectorImageFilterType::Pointer composeFilter = ComposeCovariantVectorImageFilterType::New();
composeFilter->SetInput1(image);
composeFilter->SetInput2(image);
composeFilter->SetInput3(image);
composeFilter->Update();
index.Fill(0);
std::cout << image->GetPixel(index) << std::endl;
std::cout << composeFilter->GetOutput()->GetPixel(index) << std::endl;
return EXIT_SUCCESS;
}
void
CreateImage(ScalarImageType::Pointer image)
{
start.Fill(0);
size.Fill(2);
region.SetSize(size);
region.SetIndex(start);
image->SetRegions(region);
image->Allocate();
itk::ImageRegionIterator<ScalarImageType> imageIterator(image, image->GetLargestPossibleRegion());
while (!imageIterator.IsAtEnd())
{
imageIterator.Set(1.2);
++imageIterator;
}
}
itk::Index
Represent a n-dimensional index in a n-dimensional image.
Definition: itkIndex.h:66
itkComposeImageFilter.h
itk::GTest::TypedefsAndConstructors::Dimension2::SizeType
ImageBaseType::SizeType SizeType
Definition: itkGTestTypedefsAndConstructors.h:49
itkImageRegionIterator.h
itkImageAdaptor.h
itk::Index::Fill
void Fill(IndexValueType value)
Definition: itkIndex.h:270
itk::Size::Fill
void Fill(SizeValueType value)
Definition: itkSize.h:211
itk::ImageRegionIterator
A multi-dimensional iterator templated over image type that walks a region of pixels.
Definition: itkImageRegionIterator.h:80
itk::GTest::TypedefsAndConstructors::Dimension2::IndexType
ImageBaseType::IndexType IndexType
Definition: itkGTestTypedefsAndConstructors.h:50
itk::GTest::TypedefsAndConstructors::Dimension2::RegionType
ImageBaseType::RegionType RegionType
Definition: itkGTestTypedefsAndConstructors.h:54
itk::ImageRegionIterator::Set
void Set(const PixelType &value) const
Definition: itkImageRegionIterator.h:116
itk::ComposeImageFilter
ComposeImageFilter combine several scalar images into a multicomponent image.
Definition: itkComposeImageFilter.h:62
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:86
itk::ImageRegion::SetSize
void SetSize(const SizeType &size)
Definition: itkImageRegion.h:174