ITK/Examples/Smoothing/CurvatureFlowImageFilter: Difference between revisions

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==CurvatureFlowImageFilter.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{{warning|1=The media wiki content on this page is no longer maintained.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 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 "itkCastImageFilter.h"
#include "itkCurvatureFlowImageFilter.h"
#include "itkSubtractImageFilter.h"
#include "itkImageFileReader.h"
 
#include "QuickView.h"
 
int main( int argc, char *argv[])
{
  if( argc < 2 )
    {
    std::cerr << "Usage: " << argv[0];
    std::cerr << " inputImage [iterations]" << std::endl;
    return EXIT_FAILURE;
    }
 
  int iterations = 5;
  if (argc > 2)
    {
    iterations = atoi(argv[2]);
    }
 
  typedef  float          InternalPixelType;
  const    unsigned int    Dimension = 2;
  typedef itk::Image< InternalPixelType, Dimension >  InternalImageType;
 
  typedef itk::ImageFileReader< InternalImageType > ReaderType;
 
  ReaderType::Pointer reader = ReaderType::New();
 
  reader->SetFileName( argv[1] );
 
  typedef itk::CurvatureFlowImageFilter< InternalImageType, InternalImageType >CurvatureFlowImageFilterType;
 
  CurvatureFlowImageFilterType::Pointer smoothing = CurvatureFlowImageFilterType::New();
 
  smoothing->SetInput( reader->GetOutput() );
  smoothing->SetNumberOfIterations( iterations );
  smoothing->SetTimeStep( 0.125 );
 
  typedef itk::SubtractImageFilter< InternalImageType > SubtractImageFilterType;
  SubtractImageFilterType::Pointer diff = SubtractImageFilterType::New();
  diff->SetInput1(reader->GetOutput());
  diff->SetInput2(smoothing->GetOutput());
 
  QuickView viewer;
  viewer.AddImage<InternalImageType>(
    reader->GetOutput(),true,
    itksys::SystemTools::GetFilenameName(argv[1]));  
 
  std::stringstream desc;
  desc << "CurvatureFlow\niterations = " << iterations;
  viewer.AddImage<InternalImageType>(
    smoothing->GetOutput(),
    true,
    desc.str()); 
 
  std::stringstream desc2;
  desc2 << "Original - CurvatureFlow";
   viewer.AddImage<InternalImageType>(
    diff->GetOutput(),
    true,
    desc2.str()); 
 
  viewer.Visualize();
 
  return EXIT_SUCCESS;
}
</source>
 
==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)
 
PROJECT(CurvatureFlowImageFilter)
 
FIND_PACKAGE(ITK REQUIRED)
INCLUDE(${ITK_USE_FILE})
 
ADD_EXECUTABLE(CurvatureFlowImageFilter CurvatureFlowImageFilter.cxx)
TARGET_LINK_LIBRARIES(CurvatureFlowImageFilter ITKIO)
 
 
</source>

Latest revision as of 17:13, 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.