ITK/Examples/ImageProcessing/BinaryImageToShapeLabelMapFilter

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Revision as of 13:53, 4 December 2010 by Daviddoria (talk | contribs) (Created page with "==BinaryImageToShapeLabelMapFilter.cxx== <source lang="cpp"> #include "itkImage.h" #include "itkImageFileWriter.h" #include "itkImageRegionIterator.h" #include "itkBinaryImageToS...")
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BinaryImageToShapeLabelMapFilter.cxx

#include "itkImage.h"
#include "itkImageFileWriter.h"
#include "itkImageRegionIterator.h"
#include "itkBinaryImageToShapeLabelMapFilter.h"

typedef itk::Image<unsigned char, 2>  ImageType;
void CreateImage(ImageType::Pointer image);

int main(int, char *[])
{
  ImageType::Pointer image = ImageType::New();
  CreateImage(image);

  typedef itk::BinaryImageToShapeLabelMapFilter<ImageType, ImageType> LabelMapFilterType;
  LabelMapFilterType::Pointer labelMapFilter = LabelMapFilterType::New();
  labelMapFilter->SetInput(image);
  labelMapFilter->Update();
  
  std::cout << "There are " << labelMapFilter->GetNumberOfLabelObjects() << " objects." << std::endl;
  for(unsigned int i = 0; i < labelMapFilter->GetNumberOfLabelObjects(); i++)
    {
    std::cout << "Object " << i << " has bounding box " << labelMapFilter->GetOutput(i)->GetBoundingBox() << std::endl;
    }

  return EXIT_SUCCESS;
}

void CreateImage(ImageType::Pointer image)
{
  ImageType::IndexType start;
  start.Fill(0);

  ImageType::SizeType size;
  size.Fill(20);

  ImageType::RegionType region;
  region.SetSize(size);
  region.SetIndex(start);
  image->SetRegions(region);
  image->Allocate();

  itk::ImageRegionIterator<ImageType> imageIterator(image,image->GetLargestPossibleRegion());

  // Make a square
  while(!imageIterator.IsAtEnd())
  {
    if((imageIterator.GetIndex()[0] > 5 && imageIterator.GetIndex()[0] < 10) &&
      (imageIterator.GetIndex()[1] > 5 && imageIterator.GetIndex()[1] < 10) )
        {
        imageIterator.Set(255);
        }
      else
        {
        imageIterator.Set(0);
        }

    ++imageIterator;
  }

}

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)

PROJECT(BinaryImageToShapeLabelMapFilter)

FIND_PACKAGE(ITK REQUIRED)
INCLUDE(${ITK_USE_FILE})

ADD_EXECUTABLE(BinaryImageToShapeLabelMapFilter BinaryImageToShapeLabelMapFilter.cxx)
TARGET_LINK_LIBRARIES(BinaryImageToShapeLabelMapFilter
ITKIO ITKBasicFilters ITKCommon )