ITK/Examples/Functions/MedianImageFunction: Difference between revisions

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==MedianImageFunction.cxx==
{{warning|1=The media wiki content on this page is no longer maintainedThe examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releasesIn 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 "itkImageFileWriter.h"
#include "itkImageRegionIterator.h"
#include "itkMedianImageFunction.h"
 
typedef itk::Image< unsigned char, 2 > UnsignedCharImageType;
 
void CreateImage(UnsignedCharImageType::Pointer image);
 
int main( int argc, char * argv[] )
{
  UnsignedCharImageType::Pointer image = UnsignedCharImageType::New();
  CreateImage(image);
 
  typedef itk::MedianImageFunction< UnsignedCharImageType > MedianImageFunctionType;
  MedianImageFunctionType::Pointer medianImageFunction = MedianImageFunctionType::New();
  medianImageFunction->SetInputImage( image );
 
  itk::Index<2> index;
  index.Fill(10);
  std::cout << "Median at " << index << " is " << static_cast<int>(medianImageFunction->EvaluateAtIndex(index)) << std::endl;
  return EXIT_SUCCESS;
}
 
void CreateImage(UnsignedCharImageType::Pointer image)
{
  itk::Index<2> start;
  start.Fill(0);
   
  itk::Size<2> size;
  size.Fill(100);
  itk::ImageRegion<2> region(start,size);
  image->SetRegions(region);
  image->Allocate();
  image->FillBuffer(0);
   
  itk::ImageRegionIterator<UnsignedCharImageType> imageIterator(image,region);
  while(!imageIterator.IsAtEnd())
    {
    if(imageIterator.GetIndex()[0] >= 50 && imageIterator.GetIndex()[1] >= 50 &&
      imageIterator.GetIndex()[0] <= 70 && imageIterator.GetIndex()[1] <= 70)
      {
      imageIterator.Set(255);
      }
    ++imageIterator;
    }
   typedef itk::ImageFileWriter < UnsignedCharImageType > WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName("input.png");
  writer->SetInput(image);
  writer->Update();
}
 
</source>
 
 
{{ITKCMakeLists|{{SUBPAGENAME}}}}

Latest revision as of 16:48, 4 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Warning: The media wiki content on this page is no longer maintained.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.