Difference between revisions of "ITK/Examples/Smoothing/BinaryMinMaxCurvatureFlowImageFilter"

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(Parse input arguments at the beginning of main().)
(A more useful example)
Line 3: Line 3:
#include "itkImage.h"
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkBinaryMinMaxCurvatureFlowImageFilter.h"
#include "itkBinaryMinMaxCurvatureFlowImageFilter.h"
#include "itkSubtractImageFilter.h"
#include "itksys/SystemTools.hxx"
#include "QuickView.h"


int main(int argc, char* argv[])
int main(int argc, char* argv[])
{
{
   if( argc != 4 )
   if( argc < 2 )
     {
     {
     std::cerr << argv[0] << " InputFileName OutputFileName NumberOfIterations" <<std ::endl;
     std::cerr << argv[0] << " InputFileName [NumberOfIterations]" <<std ::endl;
     return EXIT_FAILURE;
     return EXIT_FAILURE;
     }
     }


   std::string inputFileName = argv[1];
   std::string inputFileName = argv[1];
  std::string outputFileName = argv[2];
  std::stringstream ssNumIter;
  ssNumIter << argv[3];
  unsigned int numberOfIterations;
  ssNumIter >> numberOfIterations;


   const unsigned int Dimension = 3;
   unsigned int numberOfIterations = 2;
  if (argc > 2)
    {
    numberOfIterations = atoi(argv[2]);
    }


   typedef unsigned char InputPixelType;
  const unsigned int Dimension = 2;
   typedef float         OutputPixelType;
 
   typedef float InputPixelType;
   typedef float OutputPixelType;


   typedef itk::Image< InputPixelType, Dimension >  InputImageType;
   typedef itk::Image< InputPixelType, Dimension >  InputImageType;
Line 31: Line 36:
   ReaderType::Pointer reader = ReaderType::New();
   ReaderType::Pointer reader = ReaderType::New();
   reader->SetFileName(inputFileName);
   reader->SetFileName(inputFileName);
  reader->Update();


   typedef itk::Image< OutputPixelType, Dimension > OutputImageType;
   typedef itk::Image< OutputPixelType, Dimension > OutputImageType;
Line 40: Line 44:
   filter->SetThreshold( 255 );
   filter->SetThreshold( 255 );
   filter->SetNumberOfIterations(numberOfIterations);
   filter->SetNumberOfIterations(numberOfIterations);
  filter->Update();


   typedef itk::ImageFileWriter< OutputImageType > WriterType;
   typedef itk::SubtractImageFilter<OutputImageType>           SubtractType;
   WriterType::Pointer writer = WriterType::New();
   SubtractType::Pointer diff = SubtractType::New();
   writer->SetInput( filter->GetOutput() );
   diff->SetInput1(reader->GetOutput());
   writer->SetFileName(outputFileName);
  diff->SetInput2(filter->GetOutput());
   writer->Update();
 
  QuickView viewer;
  viewer.AddImage(
    reader->GetOutput(),true,
    itksys::SystemTools::GetFilenameName(inputFileName)); 
 
  std::stringstream desc;
  desc << "BinaryMinMaxCurvature, iterations = "
      << numberOfIterations;
   viewer.AddImage(
    filter->GetOutput(),
    true,
    desc.str()); 
 
  std::stringstream desc2;
   desc2 << "Original - BinaryMinMaxCurvatureFlow";
  viewer.AddImage(
    diff->GetOutput(),
    true,
    desc2.str()); 
 
  viewer.Visualize();


   return EXIT_SUCCESS;
   return EXIT_SUCCESS;

Revision as of 17:08, 30 November 2012

BinaryMinMaxCurvatureFlowImageFilter.cxx

#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkBinaryMinMaxCurvatureFlowImageFilter.h"
#include "itkSubtractImageFilter.h"

#include "itksys/SystemTools.hxx"

#include "QuickView.h"

int main(int argc, char* argv[])
{
  if( argc < 2 )
    {
    std::cerr << argv[0] << " InputFileName [NumberOfIterations]" <<std ::endl;
    return EXIT_FAILURE;
    }

  std::string inputFileName = argv[1];

  unsigned int numberOfIterations = 2;
  if (argc > 2)
    {
    numberOfIterations = atoi(argv[2]);
    }

  const unsigned int Dimension = 2;

  typedef float InputPixelType;
  typedef float OutputPixelType;

  typedef itk::Image< InputPixelType, Dimension >   InputImageType;
  typedef itk::ImageFileReader< InputImageType >    ReaderType;

  ReaderType::Pointer reader = ReaderType::New();
  reader->SetFileName(inputFileName);

  typedef itk::Image< OutputPixelType, Dimension > OutputImageType;

  typedef itk::BinaryMinMaxCurvatureFlowImageFilter< InputImageType, OutputImageType >    FilterType;
  FilterType::Pointer filter = FilterType::New();
  filter->SetInput( reader->GetOutput() );
  filter->SetThreshold( 255 );
  filter->SetNumberOfIterations(numberOfIterations);

  typedef itk::SubtractImageFilter<OutputImageType>           SubtractType;
  SubtractType::Pointer diff = SubtractType::New();
  diff->SetInput1(reader->GetOutput());
  diff->SetInput2(filter->GetOutput());

  QuickView viewer;
  viewer.AddImage(
    reader->GetOutput(),true,
    itksys::SystemTools::GetFilenameName(inputFileName));  

  std::stringstream desc;
  desc << "BinaryMinMaxCurvature, iterations = "
       << numberOfIterations;
  viewer.AddImage(
    filter->GetOutput(),
    true,
    desc.str());  

  std::stringstream desc2;
  desc2 << "Original - BinaryMinMaxCurvatureFlow";
  viewer.AddImage(
    diff->GetOutput(),
    true,
    desc2.str());  

  viewer.Visualize();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.9.5)

project(BinaryMinMaxCurvatureFlowImageFilter)

find_package(ITK REQUIRED)
include(${ITK_USE_FILE})
if (ITKVtkGlue_LOADED)
  find_package(VTK REQUIRED)
  include(${VTK_USE_FILE})
endif()

add_executable(BinaryMinMaxCurvatureFlowImageFilter MACOSX_BUNDLE BinaryMinMaxCurvatureFlowImageFilter.cxx)

if( "${ITK_VERSION_MAJOR}" LESS 4 )
  target_link_libraries(BinaryMinMaxCurvatureFlowImageFilter ITKReview ${ITK_LIBRARIES})
else( "${ITK_VERSION_MAJOR}" LESS 4 )
  target_link_libraries(BinaryMinMaxCurvatureFlowImageFilter ${ITK_LIBRARIES})
endif( "${ITK_VERSION_MAJOR}" LESS 4 )

Download and Build BinaryMinMaxCurvatureFlowImageFilter

Click here to download BinaryMinMaxCurvatureFlowImageFilter and its CMakeLists.txt file. Once the tarball BinaryMinMaxCurvatureFlowImageFilter.tar has been downloaded and extracted,

cd BinaryMinMaxCurvatureFlowImageFilter/build
  • If ITK is installed:
cmake ..
  • If ITK is not installed but compiled on your system, you will need to specify the path to your ITK build:
cmake -DITK_DIR:PATH=/home/me/itk_build ..

Build the project:

make

and run it:

./BinaryMinMaxCurvatureFlowImageFilter

WINDOWS USERS PLEASE NOTE: Be sure to add the ITK bin directory to your path. This will resolve the ITK dll's at run time.

Building All of the Examples

Many of the examples in the ITK Wiki Examples Collection require VTK. You can build all of the the examples by following these instructions. If you are a new VTK user, you may want to try the Superbuild which will build a proper ITK and VTK.

ItkVtkGlue

ITK >= 4

For examples that use QuickView (which depends on VTK), you must have built ITK with Module_ITKVtkGlue=ON.

ITK < 4

Some of the ITK Examples require VTK to display the images. If you download the entire ITK Wiki Examples Collection, the ItkVtkGlue directory will be included and configured. If you wish to just build a few examples, then you will need to download ItkVtkGlue and build it. When you run cmake it will ask you to specify the location of the ItkVtkGlue binary directory.