ITK/Examples/Smoothing/BinomialBlurImageFilter: Difference between revisions

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#include "itkImageFileReader.h"
#include "itkImageFileReader.h"
#include "itkBinomialBlurImageFilter.h"
#include "itkBinomialBlurImageFilter.h"
#include "itkRescaleIntensityImageFilter.h"
#include <itkImageToVTKImageFilter.h>
#include "vtkImageViewer.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSmartPointer.h"
#include "vtkImageActor.h"
#include "vtkInteractorStyleImage.h"
#include "vtkRenderer.h"


#include "QuickView.h"
int main(int argc, char * argv[])
int main(int argc, char * argv[])
{
{
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     {
     {
     std::cerr << "Usage: " << std::endl;
     std::cerr << "Usage: " << std::endl;
     std::cerr << argv[0] << "inputImageFile" << std::endl;
     std::cerr << argv[0] << " inputImageFile [repetitions]" << std::endl;
     return EXIT_FAILURE;
     return EXIT_FAILURE;
     }
     }
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   // Parse command line arguments
   // Parse command line arguments
   std::string inputFilename = argv[1];
   std::string inputFilename = argv[1];
  int repetitions = 2;
  if (argc > 2)
    {
    repetitions = atoi(argv[2]);
    }


   // Setup types
   // Setup types
   typedef itk::Image< unsigned char, 2 >  UnsignedCharImageType;
   typedef itk::Image< unsigned char, 2 >  UnsignedCharImageType;
  //typedef itk::Image< float, 2 >  FloatImageType;


   typedef itk::ImageFileReader< UnsignedCharImageType >  readerType;
   typedef itk::ImageFileReader< UnsignedCharImageType >  readerType;
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   filterType::Pointer blurFilter = filterType::New();
   filterType::Pointer blurFilter = filterType::New();
   blurFilter->SetInput( reader->GetOutput() );
   blurFilter->SetInput( reader->GetOutput() );
   blurFilter->Update();
   blurFilter->SetRepetitions( repetitions );
/*
  typedef itk::RescaleIntensityImageFilter< FloatImageType, UnsignedCharImageType > RescaleFilterType;
  RescaleFilterType::Pointer rescaleFilter = RescaleFilterType::New();
  rescaleFilter->SetInput(gaussianFilter->GetOutput());
  rescaleFilter->SetOutputMinimum(0);
  rescaleFilter->SetOutputMaximum(255);
*/
  // Visualize the original image
  typedef itk::ImageToVTKImageFilter<UnsignedCharImageType> ConnectorType;
  ConnectorType::Pointer originalConnector = ConnectorType::New();
  originalConnector->SetInput(reader->GetOutput());
 
  vtkSmartPointer<vtkImageActor> originalActor =
    vtkSmartPointer<vtkImageActor>::New();
  originalActor->SetInput(originalConnector->GetOutput());
 
  // Visualize the filtered image
  typedef itk::ImageToVTKImageFilter<UnsignedCharImageType> ConnectorType;
  ConnectorType::Pointer blurredConnector = ConnectorType::New();
  blurredConnector->SetInput(blurFilter->GetOutput());
 
  vtkSmartPointer<vtkImageActor> blurredActor =
    vtkSmartPointer<vtkImageActor>::New();
  blurredActor->SetInput(blurredConnector->GetOutput());
 
  // Define viewport ranges
  // (xmin, ymin, xmax, ymax)
  double leftViewport[4] = {0.0, 0.0, 0.5, 1.0};
  double rightViewport[4] = {0.5, 0.0, 1.0, 1.0};
 
  // Setup both renderers
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->SetSize(600,300);
 
  vtkSmartPointer<vtkRenderer> leftRenderer =
    vtkSmartPointer<vtkRenderer>::New();
  renderWindow->AddRenderer(leftRenderer);
  leftRenderer->SetViewport(leftViewport);
 
  vtkSmartPointer<vtkRenderer> rightRenderer =
    vtkSmartPointer<vtkRenderer>::New();
  renderWindow->AddRenderer(rightRenderer);
  rightRenderer->SetViewport(rightViewport);
 
  leftRenderer->AddActor(originalActor);
  rightRenderer->AddActor(blurredActor);
 
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  vtkSmartPointer<vtkInteractorStyleImage> style =
    vtkSmartPointer<vtkInteractorStyleImage>::New();
 
  renderWindowInteractor->SetInteractorStyle(style);
 
  renderWindowInteractor->SetRenderWindow(renderWindow);
  renderWindowInteractor->Initialize();


   renderWindowInteractor->Start();
   QuickView viewer;
  viewer.AddImage<UnsignedCharImageType>(reader->GetOutput());
  viewer.AddImage<UnsignedCharImageType>(blurFilter->GetOutput());
  viewer.Visualize();


   return EXIT_SUCCESS;
   return EXIT_SUCCESS;

Revision as of 14:03, 13 December 2010

Blur an image using a nearest neighbor average in each dimension.

BinomialBlurImageFilter.cxx

<source lang="cpp">

  1. include "itkImage.h"
  2. include "itkImageFileReader.h"
  3. include "itkBinomialBlurImageFilter.h"
  1. include "QuickView.h"

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

 // Verify command line arguments
 if( argc < 2 )
   {
   std::cerr << "Usage: " << std::endl;
   std::cerr << argv[0] << " inputImageFile [repetitions]" << std::endl;
   return EXIT_FAILURE;
   }

 // Parse command line arguments
 std::string inputFilename = argv[1];

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

 // Setup types
 typedef itk::Image< unsigned char, 2 >   UnsignedCharImageType;

 typedef itk::ImageFileReader< UnsignedCharImageType >  readerType;

 typedef itk::BinomialBlurImageFilter<

UnsignedCharImageType, UnsignedCharImageType > filterType; 

 // Create and setup a reader
 readerType::Pointer reader = readerType::New();
 reader->SetFileName( inputFilename.c_str() );

 // Create and setup a mean filter
 filterType::Pointer blurFilter = filterType::New();
 blurFilter->SetInput( reader->GetOutput() );
 blurFilter->SetRepetitions( repetitions );

 QuickView viewer;
 viewer.AddImage<UnsignedCharImageType>(reader->GetOutput());
 viewer.AddImage<UnsignedCharImageType>(blurFilter->GetOutput());
 viewer.Visualize();

 return EXIT_SUCCESS;

} </source>

CMakeLists.txt

<source lang="cmake"> cmake_minimum_required(VERSION 2.6)

PROJECT(BinomialBlurImageFilter)

include_directories(/home/doriad/src/ITK/Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/src/)

FIND_PACKAGE(VTK REQUIRED) INCLUDE(${VTK_USE_FILE})

FIND_PACKAGE(ITK REQUIRED) INCLUDE(${ITK_USE_FILE})

ADD_EXECUTABLE(BinomialBlurImageFilter BinomialBlurImageFilter.cxx) TARGET_LINK_LIBRARIES(BinomialBlurImageFilter vtkHybrid ITKBasicFilters ITKIO ITKCommon)

</source>

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