ITK/Examples/ImageProcessing/IntensityWindowingImageFilter

IntensityWindowingImageFilter.cxx

<source lang="cpp">

1. include "itkImage.h"
2. include "itkImageFileWriter.h"
3. include "itkIntensityWindowingImageFilter.h"
4. include "itkImageRegionIterator.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::IntensityWindowingImageFilter <ImageType, ImageType> IntensityWindowingImageFilterType;

 IntensityWindowingImageFilterType::Pointer filter = IntensityWindowingImageFilterType::New();
 filter->SetInput(image);
 filter->SetWindowMinimum(0);
 filter->SetWindowMaximum(100);
 filter->SetOutputMinimum(0);
 filter->SetOutputMaximum(255);
 filter->Update();

 typedef  itk::ImageFileWriter< ImageType > WriterType;
 WriterType::Pointer writer = WriterType::New();
 writer->SetFileName("output.png");
 writer->SetInput(image);
 writer->Update();
 
 return EXIT_SUCCESS;

}

void CreateImage(ImageType::Pointer image) {

 ImageType::IndexType start;
 start.Fill(0);

 ImageType::SizeType size;
 size.Fill(100);

 ImageType::RegionType region(start,size);

 image->SetRegions(region);
 image->Allocate();
 image->FillBuffer(10);

 itk::ImageRegionIterator<ImageType> imageIterator(image,region);

 while(!imageIterator.IsAtEnd())
   {
   if(imageIterator.GetIndex()[0] > 30)
     {
     imageIterator.Set(0);
     }

   ++imageIterator;
   }

} </source>

CMakeLists.txt

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

PROJECT(IntensityWindowingImageFilter)

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

ADD_EXECUTABLE(IntensityWindowingImageFilter IntensityWindowingImageFilter.cxx) TARGET_LINK_LIBRARIES(IntensityWindowingImageFilter ITKBasicFilters ITKCommon ITKIO)

</source>