ITK¶

Description¶

ITK (Insight Segmentation and Registration Toolkit) est une bibliothèque logicielle libre de classes C++ de traitement d'image. Elle contient des algorithmes de recalage d'image, de filtrage et de segmentation. Elle a été créée dans le but d'analyser toute sorte d'images médicales.

Références¶

• https://itk.org/
• https://www.vtk.org/Wiki/ITK
• https://www.vtk.org/Wiki/ITK/FAQ

Versions installées¶

• v4.13.0, sous /sw/lib/itk/4.13.0, compilé (Release mode) avec l'interface vers vtk 7.1.0 ET plusieurs modules supplémentaires aux modules standards :

[homer@hulk build]$ grep -P "^[Module].+=ON" CMakeCache.txt
Module_AnisotropicDiffusionLBR:BOOL=ON
Module_HigherOrderAccurateGradient:BOOL=ON
Module_ITKVtkGlue:BOOL=ON
Module_IsotropicWavelets:BOOL=ON
Module_LabelErodeDilate:BOOL=ON
Module_MinimalPathExtraction:BOOL=ON
Module_MorphologicalContourInterpolation:BOOL=ON
Module_MultipleImageIterator:BOOL=ON
Module_ParabolicMorphology:BOOL=ON
Module_PrincipalComponentsAnalysis:BOOL=ON
Module_SplitComponents:BOOL=ON
Module_Strain:BOOL=ON
Module_SubdivisionQuadEdgeMeshFilter:BOOL=ON
Module_VariationalRegistration:BOOL=ON
Module_HigherOrderAccurateGradient-MODIFIED:INTERNAL=ON
Module_IsotropicWavelets-MODIFIED:INTERNAL=ON
Module_LabelErodeDilate-MODIFIED:INTERNAL=ON
Module_MinimalPathExtraction-MODIFIED:INTERNAL=ON
Module_MorphologicalContourInterpolation-MODIFIED:INTERNAL=ON
Module_MultipleImageIterator-MODIFIED:INTERNAL=ON
Module_ParabolicMorphology-MODIFIED:INTERNAL=ON
Module_PrincipalComponentsAnalysis-MODIFIED:INTERNAL=ON
Module_SplitComponents-MODIFIED:INTERNAL=ON
Module_Strain-MODIFIED:INTERNAL=ON
Module_SubdivisionQuadEdgeMeshFilter-MODIFIED:INTERNAL=ON
Module_VariationalRegistration-MODIFIED:INTERNAL=ON

Usage :¶

[homer@thor ~]$ module help lib/itk/4.13.0
----------- Module Specific Help for 'lib/itk/4.13.0' -------------

    modules - loads the ITK library environment

    This adds /sw/lib/itk/4.13.0/gnu/* to several of the

    environment variables.

    Compiled with Release flags, ITKVtkGlue=ON

    and several additionnal modules

     (see wiki for more information)

    Version 4.13.0
[homer@thor ~]$ module add lib/itk/4.13.0

Utilisation¶

• fichier c++ : myitkAlgo.cxx

#include "itkImage.h" 
#include "itkImageFileReader.h" 
#include "itkGradientMagnitudeImageFilter.h" 

int main( int argc, char ** argv )
{

  if( argc < 2 )
    {
    std::cerr << "Usage:  myitkAlgo   filename2Dimage" << std::endl;
    return 1;
    }

  typedef itk::Image< unsigned char, 2 >     ImageType;
  typedef itk::ImageFileReader< ImageType >  ReaderType;
  typedef itk::GradientMagnitudeImageFilter<
                 ImageType, ImageType >      FilterType;

  ReaderType::Pointer  reader  = ReaderType::New();
  FilterType::Pointer  filter  = FilterType::New();

  reader->SetFileName( argv[1] );
  filter->SetInput( reader->GetOutput() );
  filter->Update();

  return 0;

}

• fichier CMakeLists.txt :

PROJECT(ITKALGO)

# Find ITK.
FIND_PACKAGE(ITK)
IF(ITK_FOUND)
  INCLUDE(${ITK_USE_FILE})
ELSE(ITK_FOUND)
  MESSAGE(FATAL_ERROR
          "Cannot build without ITK.  Please set ITK_DIR.")
ENDIF(ITK_FOUND)

ADD_EXECUTABLE(myitkAlgo myitkAlgo.cxx )

TARGET_LINK_LIBRARIES(myitkAlgo ${ITK_LIBRARIES} )

[homer@thor itk_algo]$ module add lib/itk
[homer@thor itk_algo]$ mkdir build
[homer@thor itk_algo]$ ls
build  CMakeLists.txt  myitkAlgo.cxx
[homer@thor itk_algo]$ cd build/
[homer@thor build]$ cmake ..
[homer@thor build]$ make
[homer@thor build]$ ./myitkAlgo
Usage:  myitkAlgo   filename2Dimage