ITK/Examples/ImageProcessing/NthElementImageAdaptor
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NthElementImageAdaptor.cxx
<source lang="cpp">
- include "itkImageAdaptor.h"
- include "itkImageRegionIterator.h"
- include "itkNthElementImageAdaptor.h"
typedef itk::Image<itk::CovariantVector< float, 3>, 2> VectorImageType;
static void CreateImage(VectorImageType::Pointer image);
int main(int, char *[]) {
VectorImageType::Pointer image = VectorImageType::New(); CreateImage(image);
itk::Index<2> index; index.Fill(0);
std::cout << image->GetPixel(index) << std::endl;
typedef itk::NthElementImageAdaptor<VectorImageType, float> ImageAdaptorType;
ImageAdaptorType::Pointer adaptor = ImageAdaptorType::New();
adaptor->SelectNthElement(0); adaptor->SetImage(image);
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->Allocate();
itk::ImageRegionIterator<VectorImageType> imageIterator(image,image->GetLargestPossibleRegion()); itk::CovariantVector<float, 3> vec; vec[0] = 1; vec[1] = 2; vec[2] = 3;
while(!imageIterator.IsAtEnd()) { imageIterator.Set(vec);
++imageIterator; }
} </source>
CMakeLists.txt
<source lang="cmake"> cmake_minimum_required(VERSION 2.6)
PROJECT(NthElementImageAdaptor)
FIND_PACKAGE(ITK REQUIRED) INCLUDE(${ITK_USE_FILE})
ADD_EXECUTABLE(NthElementImageAdaptor NthElementImageAdaptor.cxx) TARGET_LINK_LIBRARIES(NthElementImageAdaptor ITKIO)
</source>