ITK  4.8.0
Insight Segmentation and Registration Toolkit
WikiExamples/VectorImages/VectorImageToImageAdaptor.cxx
#include "itkVectorImage.h"
#include "itkImage.h"
typedef itk::Image<float, 2> ScalarImageType;
typedef itk::VectorImage<float, 2> VectorImageType;
void CreateImage(VectorImageType::Pointer image);
int main(int, char *[])
{
VectorImageType::Pointer image = VectorImageType::New();
CreateImage(image);
typedef itk::VectorImageToImageAdaptor<float, 2> ImageAdaptorType;
ImageAdaptorType::Pointer adaptor = ImageAdaptorType::New();
adaptor->SetExtractComponentIndex(0);
adaptor->SetImage(image);
index[0] = 0;
index[1] = 0;
std::cout << adaptor->GetPixel(index) << std::endl;
return EXIT_SUCCESS;
}
void CreateImage(VectorImageType::Pointer image)
{
VectorImageType::IndexType start;
start.Fill(0);
VectorImageType::SizeType size;
size.Fill(2);
VectorImageType::RegionType region;
region.SetSize(size);
region.SetIndex(start);
image->SetRegions(region);
image->SetNumberOfComponentsPerPixel(2);
image->Allocate();
typedef itk::VariableLengthVector<double> VariableVectorType;
VariableVectorType variableLengthVector;
variableLengthVector.SetSize(2);
itk::ImageRegionIterator<VectorImageType> imageIterator(image,image->GetLargestPossibleRegion());
variableLengthVector[0] = 1;
variableLengthVector[1] = 2;
while(!imageIterator.IsAtEnd())
{
imageIterator.Set(variableLengthVector);
++imageIterator;
}
}