ITK/Examples/Curves/ContourMeanDistanceImageFilter: Difference between revisions

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<div class="floatcenter">[[File:ITK_Examples_Baseline_Curves_TestContourMeanDistanceImageFilter.png]]</div>
{{warning|1=The media wiki content on this page is no longer maintained.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.}}
==ContourMeanDistanceImageFilter.cxx==
<source lang="cpp">
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkContourMeanDistanceImageFilter.h"
 
#include "QuickView.h"
 
template<typename TImage>
static void CreateImage1(TImage* const);
 
template<typename TImage>
static void CreateImage2(TImage* const);
 
int main(int, char*[])
{
  typedef itk::Image<unsigned char, 2> ImageType;
 
  ImageType::Pointer image1 = ImageType::New();
  CreateImage1(image1.GetPointer());
 
  ImageType::Pointer image2 = ImageType::New();
  CreateImage2(image2.GetPointer());
 
  typedef itk::ContourMeanDistanceImageFilter <ImageType, ImageType >
    ContourMeanDistanceImageFilterType;
 
  ContourMeanDistanceImageFilterType::Pointer contourMeanDistanceImageFilter =
    ContourMeanDistanceImageFilterType::New();
  contourMeanDistanceImageFilter->SetInput1(image1);
  contourMeanDistanceImageFilter->SetInput2(image2);
  contourMeanDistanceImageFilter->Update();
 
  std::cout << "Mean distance: " << contourMeanDistanceImageFilter->GetMeanDistance() << std::endl;
 
  QuickView viewer;
  viewer.AddImage(image1.GetPointer());
  viewer.AddImage(image2.GetPointer());
  viewer.Visualize();
 
  return EXIT_SUCCESS;
}
 
template<typename TImage>
void CreateImage1(TImage* const image)
{
  // Create an image bigger than the input image and that has dimensions which are powers of two
  typename TImage::IndexType start = {{0,0}};
 
  typename TImage::SizeType size = {{20,20}};
 
  itk::ImageRegion<2> region(start, size);
 
  image->SetRegions(region);
  image->Allocate();
  image->FillBuffer(0);
 
  // Create a diagonal white line through the image
  for(typename TImage::IndexValueType i = 0; i < 20; i++)
    {
    for(typename TImage::IndexValueType j = 0; j < 20; j++)
      {
      if(i == j)
        {
        itk::Index<2> pixel = {{i,j}};
        image->SetPixel(pixel, 255);
        }
      }
    }
}
 
template<typename TImage>
void CreateImage2(TImage* const image)
{
  typename TImage::IndexType start = {{0,0}};
 
   typename TImage::SizeType size = {{20,20}};
 
  itk::ImageRegion<2> region(start, size);
 
  image->SetRegions(region);
  image->Allocate();
  image->FillBuffer(0);
 
  // Create a vertical line of white pixels down the center of the image
  for(typename TImage::IndexValueType i = 0; i < 20; i++)
    {
    for(typename TImage::IndexValueType j = 0; j < 20; j++)
      {
      if(i == 10)
        {
        itk::Index<2> pixel = {{i,j}};
        image->SetPixel(pixel, 255);
        }
      }
    }
}
 
</source>
 
{{ITKVTKCMakeLists|{{SUBPAGENAME}}}}

Latest revision as of 19:13, 6 June 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.