ITK/Examples/Images/WrapPadImageFilter: Difference between revisions

From KitwarePublic
< ITK‎ | Examples
Jump to navigationJump to search
No edit summary
Line 5: Line 5:
#include "itkRescaleIntensityImageFilter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkWrapPadImageFilter.h"
#include "itkWrapPadImageFilter.h"
#include "itkImageRegionIterator.h"


#include <itkImageToVTKImageFilter.h>
#include <itkImageToVTKImageFilter.h>
Line 27: Line 28:
           WrapPadImageFilterType;
           WrapPadImageFilterType;


   ImageType::SizeType outputRegion = {20,30};
   ImageType::SizeType lowerExtend;
  lowerExtend[0] = 20;
  lowerExtend[1] = 30;
 
  ImageType::SizeType upperExtend;
  upperExtend[0] = 50;
  upperExtend[1] = 40;
 
   WrapPadImageFilterType::Pointer padFilter
   WrapPadImageFilterType::Pointer padFilter
           = WrapPadImageFilterType::New();
           = WrapPadImageFilterType::New();
   padFilter->SetInput(image);
   padFilter->SetInput(image);
   padFilter->SetPadBound(outputRegion);
   padFilter->SetPadLowerBound(lowerExtend);
  padFilter->SetPadUpperBound(upperExtend);
   padFilter->Update();
   padFilter->Update();


Line 98: Line 107:
void CreateImage(ImageType::Pointer image)
void CreateImage(ImageType::Pointer image)
{
{
   // Create an image with 2 connected components
   // Create an image
   ImageType::RegionType region;
   ImageType::RegionType region;
   ImageType::IndexType start;
   ImageType::IndexType start;
Line 105: Line 114:


   ImageType::SizeType size;
   ImageType::SizeType size;
  unsigned int NumRows = 200;
   size[0] = 200;
  unsigned int NumCols = 300;
   size[1] = 100;
   size[0] = NumRows;
   size[1] = NumCols;


   region.SetSize(size);
   region.SetSize(size);
Line 115: Line 122:
   image->SetRegions(region);
   image->SetRegions(region);
   image->Allocate();
   image->Allocate();
  itk::ImageRegionIterator<ImageType> imageIterator(image,image->GetLargestPossibleRegion());


   // Make a square
   while(!imageIterator.IsAtEnd())
  for(unsigned int r = 20; r < 80; r++)
    {
  {
    imageIterator.Set(imageIterator.GetIndex()[0]);
      for(unsigned int c = 20; c < 30; c++)
    ++imageIterator;
      {
    }
          ImageType::IndexType pixelIndex;
          pixelIndex[0] = r;
          pixelIndex[1] = c;
 
          image->SetPixel(pixelIndex, 200);
      }
  }
}
}
</source>
</source>



Revision as of 16:10, 29 October 2010

WrapPadImageFilter.cxx

<source lang="cpp">

  1. include "itkImage.h"
  2. include "itkImageFileWriter.h"
  3. include "itkRescaleIntensityImageFilter.h"
  4. include "itkWrapPadImageFilter.h"
  5. include "itkImageRegionIterator.h"
  1. include <itkImageToVTKImageFilter.h>
  1. include "vtkImageViewer.h"
  2. include "vtkRenderWindowInteractor.h"
  3. include "vtkSmartPointer.h"
  4. include "vtkImageActor.h"
  5. include "vtkInteractorStyleImage.h"
  6. include "vtkRenderer.h"

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

void CreateImage(ImageType::Pointer image);

int main(int, char *[]) {

 ImageType::Pointer image = ImageType::New();
 CreateImage(image);
 typedef itk::WrapPadImageFilter <ImageType, ImageType>
         WrapPadImageFilterType;
 ImageType::SizeType lowerExtend;
 lowerExtend[0] = 20;
 lowerExtend[1] = 30;
 ImageType::SizeType upperExtend;
 upperExtend[0] = 50;
 upperExtend[1] = 40;
 
 WrapPadImageFilterType::Pointer padFilter
         = WrapPadImageFilterType::New();
 padFilter->SetInput(image);
 padFilter->SetPadLowerBound(lowerExtend);
 padFilter->SetPadUpperBound(upperExtend);
 padFilter->Update();
 // Visualize first image
 typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
 ConnectorType::Pointer originalConnector = ConnectorType::New();
 originalConnector->SetInput(image);
 vtkSmartPointer<vtkImageActor> originalActor =
   vtkSmartPointer<vtkImageActor>::New();
 originalActor->SetInput(originalConnector->GetOutput());
 // Visualize padded image
 ConnectorType::Pointer paddedConnector = ConnectorType::New();
 paddedConnector->SetInput(padFilter->GetOutput());
 vtkSmartPointer<vtkImageActor> paddedActor =
   vtkSmartPointer<vtkImageActor>::New();
 paddedActor->SetInput(paddedConnector->GetOutput());
 // There will be one render window
 vtkSmartPointer<vtkRenderWindow> renderWindow =
   vtkSmartPointer<vtkRenderWindow>::New();
 renderWindow->SetSize(600, 300);
 vtkSmartPointer<vtkRenderWindowInteractor> interactor =
   vtkSmartPointer<vtkRenderWindowInteractor>::New();
 interactor->SetRenderWindow(renderWindow);
 // Define viewport ranges
 // (xmin, ymin, xmax, ymax)
 double leftViewport[4] = {0.0, 0.0, 0.5, 1.0};
 double rightViewport[4] = {0.5, 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> 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(originalActor);
 rightRenderer->AddActor(paddedActor);
 leftRenderer->ResetCamera();
 rightRenderer->ResetCamera();
 renderWindow->Render();
 vtkSmartPointer<vtkInteractorStyleImage> style =
   vtkSmartPointer<vtkInteractorStyleImage>::New();
 interactor->SetInteractorStyle(style);
 interactor->Start();
 return EXIT_SUCCESS;

}

void CreateImage(ImageType::Pointer image) {

 // Create an image
 ImageType::RegionType region;
 ImageType::IndexType start;
 start[0] = 0;
 start[1] = 0;
 ImageType::SizeType size;
 size[0] = 200;
 size[1] = 100;
 region.SetSize(size);
 region.SetIndex(start);
 image->SetRegions(region);
 image->Allocate();
 itk::ImageRegionIterator<ImageType> imageIterator(image,image->GetLargestPossibleRegion());
 while(!imageIterator.IsAtEnd())
   {
   imageIterator.Set(imageIterator.GetIndex()[0]);
   ++imageIterator;
   }

} </source>

CMakeLists.txt

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

PROJECT(WrapPadImageFilter)

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(WrapPadImageFilter WrapPadImageFilter.cxx) TARGET_LINK_LIBRARIES(WrapPadImageFilter vtkHybrid ITKBasicFilters ITKCommon ITKIO)

</source>