ITK/Examples/Iterators/ShapedNeighborhoodIterator: Difference between revisions

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==ShapedNeighborhoodIterator.cxx==
{{warning|1=The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/*  pages likely require ITK version 4.13 or earlier releases.   In many cases, the examples on this page no longer conform to the best practices for modern ITK versions.
<source lang="cpp">
}}
#include "itkImage.h"
#include "itkShapedNeighborhoodIterator.h"
#include "itkImageRegionConstIterator.h"
#include "itkNeighborhoodAlgorithm.h"
#include "itkBinaryBallStructuringElement.h"
#include "itkBinaryCrossStructuringElement.h"


typedef itk::Image<int, 2>      ImageType;
[https://itk.org/ITKExamples[ITK Sphinx Examples]]
typedef ImageType::PixelType    PixelType;
static void CreateImage(ImageType::Pointer image);
int main(int, char*[])
{
  ImageType::Pointer image = ImageType::New();
  CreateImage(image);
 
  typedef itk::BinaryBallStructuringElement<PixelType, 2>
    StructuringElementType;
  StructuringElementType::RadiusType elementRadius;
  elementRadius.Fill(2);
 
  StructuringElementType structuringElement;
  structuringElement.SetRadius(elementRadius);
  structuringElement.CreateStructuringElement();
 
  typedef itk::ShapedNeighborhoodIterator<ImageType> IteratorType;
  IteratorType siterator(structuringElement.GetRadius(),
                        image,
                        image->GetLargestPossibleRegion());
 
  siterator.CreateActiveListFromNeighborhood(structuringElement);
  siterator.NeedToUseBoundaryConditionOff();
 
  IteratorType::IndexType location;
  location[0] = 4;
  location[1] = 5;
  siterator.SetLocation(location);
  IteratorType::Iterator i;
  for (i = siterator.Begin(); !i.IsAtEnd(); ++i)
    {
    i.Set(1);
    }
 
  // Now show the results
  typedef itk::ImageRegionConstIterator<ImageType> ImageIteratorType;
  ImageIteratorType imit(image, image->GetLargestPossibleRegion());
  imit.GoToBegin();
  unsigned int col = 0;
  while( !imit.IsAtEnd() )
    {
    PixelType value = imit.Get();
    ++imit;
    ++col;
    std::cout << value << " ";
    if ((col % 10) == 0)
      {
      std::cout << std::endl;
      }
    }
 
  return EXIT_SUCCESS;
}
void CreateImage(ImageType::Pointer image)
{
  ImageType::IndexType start;
  start.Fill(0);
  ImageType::SizeType size;
  size.Fill(10);
 
  ImageType::RegionType region(start,size);
 
  image->SetRegions(region);
  image->Allocate();
  image->FillBuffer(0);
}
</source>
 
{{ITKCMakeLists|ShapedNeighborhoodIterator}}

Latest revision as of 15:56, 31 May 2019

Warning: The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases. In many cases, the examples on this page no longer conform to the best practices for modern ITK versions.

[ITK Sphinx Examples]