ITK  5.3.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageIntensity/ExtractComponentOfVectorImage/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.
*
*=========================================================================*/
#include "itkVectorImage.h"
using VectorImageType = itk::VectorImage<float, 2>;
using ScalarImageType = itk::Image<float, 2>;
static void
CreateImage(VectorImageType::Pointer image);
int
main(int, char *[])
{
VectorImageType::Pointer image = VectorImageType::New();
CreateImage(image);
IndexSelectionType::Pointer indexSelectionFilter = IndexSelectionType::New();
indexSelectionFilter->SetIndex(0);
indexSelectionFilter->SetInput(image);
using ImageCalculatorFilterType = itk::MinimumMaximumImageCalculator<ScalarImageType>;
ImageCalculatorFilterType::Pointer imageCalculatorFilter = ImageCalculatorFilterType::New();
imageCalculatorFilter->SetImage(indexSelectionFilter->GetOutput());
imageCalculatorFilter->Compute();
return EXIT_SUCCESS;
}
void
CreateImage(VectorImageType::Pointer image)
{
start.Fill(0);
size.Fill(2);
VectorImageType::RegionType region(start, size);
image->SetRegions(region);
image->SetNumberOfComponentsPerPixel(3);
image->Allocate();
using VariableVectorType = itk::VariableLengthVector<double>;
VariableVectorType variableLengthVector;
variableLengthVector.SetSize(3);
variableLengthVector[0] = 1.1;
variableLengthVector[1] = 2.2;
variableLengthVector[2] = 3.3;
image->FillBuffer(variableLengthVector);
}
itkVectorIndexSelectionCastImageFilter.h
itk::MinimumMaximumImageCalculator
Computes the minimum and the maximum intensity values of an image.
Definition: itkMinimumMaximumImageCalculator.h:44
itk::VectorImage
Templated n-dimensional vector image class.
Definition: itkImageAlgorithm.h:29
itk::VariableLengthVector::SetSize
void SetSize(unsigned int sz, TReallocatePolicy reallocatePolicy, TKeepValuesPolicy keepValues)
itk::GTest::TypedefsAndConstructors::Dimension2::SizeType
ImageBaseType::SizeType SizeType
Definition: itkGTestTypedefsAndConstructors.h:49
itkMinimumMaximumImageCalculator.h
itkImageRegionIterator.h
itk::Index::Fill
void Fill(IndexValueType value)
Definition: itkIndex.h:270
itk::Size::Fill
void Fill(SizeValueType value)
Definition: itkSize.h:211
itkVectorImage.h
itk::VectorIndexSelectionCastImageFilter
Extracts the selected index of the vector that is the input pixel type.
Definition: itkVectorIndexSelectionCastImageFilter.h:96
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::VariableLengthVector
Represents an array whose length can be defined at run-time.
Definition: itkConstantBoundaryCondition.h:28
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:86