ITK/Examples/ImageProcessing/AbsImageFilter: Difference between revisions

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==AbsImageFilter.cxx==
{{warning|1=The media wiki content on this page is no longer maintainedThe examples presented on the https://itk.org/Wiki/*  pages likely require ITK version 4.13 or earlier releasesIn many cases, the examples on this page no longer conform to the best practices for modern ITK versions.
<source lang="cpp">
}}
#include "itkImage.h"
#include "itkImageFileWriter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkAbsImageFilter.h"
 
#include "QuickView.h"
 
typedef itk::Image<unsigned char, 2> UnsignedCharImageType;
typedef itk::Image<float, 2>  FloatImageType;
 
static void CreateImage(FloatImageType::Pointer image);
 
int main(int, char *[])
{
  FloatImageType::Pointer image = FloatImageType::New();
  CreateImage(image);
 
  // Take the absolute value of the image
  typedef itk::AbsImageFilter <FloatImageType, FloatImageType>
          AbsImageFilterType;
 
  AbsImageFilterType::Pointer absFilter
          = AbsImageFilterType::New ();
  absFilter->SetInput(image);
 
  QuickView viewer;
  viewer.AddImage<FloatImageType>(image);
  viewer.AddImage<FloatImageType>(absFilter->GetOutput());
  viewer.Visualize();
 
  return EXIT_SUCCESS;
}
 
void CreateImage(FloatImageType::Pointer image)
{
  // Create an image with negative values
  FloatImageType::RegionType region;
  FloatImageType::IndexType start;
  start[0] = 0;
  start[1] = 0;
 
  FloatImageType::SizeType size;
  size[0] = 200;
  size[1] = 300;
 
  region.SetSize(size);
  region.SetIndex(start);
 
   image->SetRegions(region);
  image->Allocate();
 
  itk::ImageRegionIterator<FloatImageType> imageIterator(image,region);
 
  while(!imageIterator.IsAtEnd())
    {
    imageIterator.Set(imageIterator.GetIndex()[0] - imageIterator.GetIndex()[1]);
    ++imageIterator;
    }
 
}
</source>
 
==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)
 
PROJECT(AbsImageFilter)
 
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(AbsImageFilter AbsImageFilter.cxx)
TARGET_LINK_LIBRARIES(AbsImageFilter
vtkHybrid
ITKBasicFilters ITKCommon ITKIO)
 
</source>

Latest revision as of 19:31, 5 June 2019

Warning: The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases. In many cases, the examples on this page no longer conform to the best practices for modern ITK versions.