ITK/Examples/ImageProcessing/MultiplyImageFilter: Difference between revisions

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#include "itkMultiplyImageFilter.h"
#include "itkMultiplyImageFilter.h"


#include "itkImageToVTKImageFilter.h"
#include "QuickView.h"
 
#include "vtkImageViewer.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSmartPointer.h"
#include "vtkImageActor.h"
#include "vtkInteractorStyleImage.h"
#include "vtkRenderer.h"


typedef itk::Image<unsigned char, 2>  ImageType;
typedef itk::Image<unsigned char, 2>  ImageType;
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   multiplyFilter->SetInput1(image1);
   multiplyFilter->SetInput1(image1);
   multiplyFilter->SetInput2(image2);
   multiplyFilter->SetInput2(image2);
  multiplyFilter->Update();
  // Visualize first image
  typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
  ConnectorType::Pointer connector1 = ConnectorType::New();
  connector1->SetInput(image1);
  vtkSmartPointer<vtkImageActor> actor1 =
    vtkSmartPointer<vtkImageActor>::New();
  actor1->SetInput(connector1->GetOutput());
  // Visualize first image
  typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
  ConnectorType::Pointer connector2 = ConnectorType::New();
  connector2->SetInput(image2);
  vtkSmartPointer<vtkImageActor> actor2 =
    vtkSmartPointer<vtkImageActor>::New();
  actor2->SetInput(connector2->GetOutput());
  // Visualize joined image
  ConnectorType::Pointer multiplyConnector = ConnectorType::New();
  multiplyConnector->SetInput(multiplyFilter->GetOutput());
  vtkSmartPointer<vtkImageActor> multiplyActor =
    vtkSmartPointer<vtkImageActor>::New();
  multiplyActor->SetInput(multiplyConnector->GetOutput());
  // There will be one render window
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->SetSize(900, 300);
  vtkSmartPointer<vtkRenderWindowInteractor> interactor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  interactor->SetRenderWindow(renderWindow);
  // Define viewport ranges
  // (xmin, ymin, xmax, ymax)
  double leftViewport[4] = {0.0, 0.0, 0.33, 1.0};
  double centerViewport[4] = {0.33, 0.0, 0.66, 1.0};
  double rightViewport[4] = {0.66, 0.0, 1.0, 1.0};
  // Setup both renderers
  vtkSmartPointer<vtkRenderer> leftRenderer =
    vtkSmartPointer<vtkRenderer>::New();
  renderWindow->AddRenderer(leftRenderer);
  leftRenderer->SetViewport(leftViewport);
  leftRenderer->SetBackground(.6, .5, .4);
  vtkSmartPointer<vtkRenderer> centerRenderer =
    vtkSmartPointer<vtkRenderer>::New();
  renderWindow->AddRenderer(centerRenderer);
  centerRenderer->SetViewport(centerViewport);
  centerRenderer->SetBackground(.4, .5, .6);
 
  vtkSmartPointer<vtkRenderer> rightRenderer =
    vtkSmartPointer<vtkRenderer>::New();
  renderWindow->AddRenderer(rightRenderer);
  rightRenderer->SetViewport(rightViewport);
  rightRenderer->SetBackground(.4, .5, .6);
  // Add the sphere to the left and the cube to the right
  leftRenderer->AddActor(actor1);
  centerRenderer->AddActor(actor2);
  rightRenderer->AddActor(multiplyActor);
  leftRenderer->ResetCamera();
  centerRenderer->ResetCamera();
  rightRenderer->ResetCamera();
  renderWindow->Render();
  vtkSmartPointer<vtkInteractorStyleImage> style =
    vtkSmartPointer<vtkInteractorStyleImage>::New();
  interactor->SetInteractorStyle(style);


   interactor->Start();
   QuickView viewer;
  viewer.AddImage<ImageType>(image1);
  viewer.AddImage<ImageType>(image2);
  viewer.AddImage<ImageType>(multiplyFilter->GetOutput());
  viewer.Visualize();


   return EXIT_SUCCESS;
   return EXIT_SUCCESS;

Revision as of 20:49, 10 December 2010

ITK Examples Baseline ImageProcessing TestMultiplyImageFilter.png

MultiplyImageFilter.cxx

<source lang="cpp">

  1. include "itkImage.h"
  2. include "itkImageFileWriter.h"
  3. include "itkRescaleIntensityImageFilter.h"
  4. include "itkMultiplyImageFilter.h"
  1. include "QuickView.h"

typedef itk::Image<unsigned char, 2> ImageType;

static void CreateImage1(ImageType::Pointer image); static void CreateImage2(ImageType::Pointer image);

int main(int, char *[]) { 

 ImageType::Pointer image1 = ImageType::New();
 CreateImage1(image1);

 ImageType::Pointer image2 = ImageType::New();
 CreateImage2(image2);

 typedef itk::MultiplyImageFilter <ImageType, ImageType >
   MultiplyImageFilterType;

 MultiplyImageFilterType::Pointer multiplyFilter
   = MultiplyImageFilterType::New ();
 multiplyFilter->SetInput1(image1);
 multiplyFilter->SetInput2(image2);

 QuickView viewer;
 viewer.AddImage<ImageType>(image1);
 viewer.AddImage<ImageType>(image2);
 viewer.AddImage<ImageType>(multiplyFilter->GetOutput());
 viewer.Visualize();

 return EXIT_SUCCESS;

}

void CreateImage1(ImageType::Pointer image) { 

 // Create an image with 2 connected components
 ImageType::RegionType region;
 ImageType::IndexType start;
 start[0] = 0;
 start[1] = 0;

 ImageType::SizeType size;
 unsigned int NumRows = 200;
 unsigned int NumCols = 300;
 size[0] = NumRows;
 size[1] = NumCols;

 region.SetSize(size);
 region.SetIndex(start);

 image->SetRegions(region);
 image->Allocate();

 // Make a square
 for(unsigned int r = 20; r < 80; r++)
   {
   for(unsigned int c = 20; c < 80; c++)
     {
     ImageType::IndexType pixelIndex;
     pixelIndex[0] = r;
     pixelIndex[1] = c;

     image->SetPixel(pixelIndex, 15);
     }
   }

}


void CreateImage2(ImageType::Pointer image) { 

 // Create an image with 2 connected components
 ImageType::RegionType region;
 ImageType::IndexType start;
 start[0] = 0;
 start[1] = 0;

 ImageType::SizeType size;
 unsigned int NumRows = 200;
 unsigned int NumCols = 300;
 size[0] = NumRows;
 size[1] = NumCols;

 region.SetSize(size);
 region.SetIndex(start);

 image->SetRegions(region);
 image->Allocate();

 // Make another square
 for(unsigned int r = 40; r < 100; r++)
   {
   for(unsigned int c = 40; c < 100; c++)
     {
     ImageType::IndexType pixelIndex;
     pixelIndex[0] = r;
     pixelIndex[1] = c;

     image->SetPixel(pixelIndex, 15);
     }
   }

} </source>

CMakeLists.txt

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

PROJECT(MultiplyImageFilter)

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(MultiplyImageFilter MultiplyImageFilter.cxx) TARGET_LINK_LIBRARIES(MultiplyImageFilter vtkHybrid ITKBasicFilters ITKCommon ITKIO) </source>

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