ITK/Examples/Images/ConstantPadImageFilter: Difference between revisions

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<div class="floatcenter">[[File:ITK_Examples_Baseline_Images_TestConstantPadImageFilter.png|300px]]</div>
{{warning|1=The media wiki content on this page is no longer maintained.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.
==ConstantPadImageFilter.cxx==
}}
<source lang="cpp">
#include "itkImage.h"
#include "itkImageFileWriter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkConstantPadImageFilter.h"
#include "itkImageRegionIterator.h"


typedef itk::Image<unsigned char, 2>  ImageType;
[https://itk.org/ITKExamples[ITK Sphinx Examples]]
 
static void CreateImage(ImageType::Pointer image);
static void WriteImage(ImageType::Pointer image, std::string filename);
 
int main(int, char *[])
{
  ImageType::Pointer image = ImageType::New();
  CreateImage(image);
  WriteImage(image, "input.png");
 
 
  typedef itk::ConstantPadImageFilter <ImageType, ImageType>
    ConstantPadImageFilterType;
 
  ImageType::SizeType lowerExtendRegion;
  lowerExtendRegion[0] = 10;
  lowerExtendRegion[1] = 10;
 
  ImageType::SizeType upperExtendRegion;
  upperExtendRegion[0] = 50;
  upperExtendRegion[1] = 50;
 
  ImageType::PixelType constantPixel = 100;
 
  ConstantPadImageFilterType::Pointer padFilter
    = ConstantPadImageFilterType::New();
  padFilter->SetInput(image);
  //padFilter->SetPadBound(outputRegion); // Calls SetPadLowerBound(region) and SetPadUpperBound(region)
  padFilter->SetPadLowerBound(lowerExtendRegion);
  padFilter->SetPadUpperBound(upperExtendRegion);
  padFilter->SetConstant(constantPixel);
  padFilter->Update();
 
  WriteImage(padFilter->GetOutput(), "output.png");
 
  return EXIT_SUCCESS;
}
 
void CreateImage(ImageType::Pointer image)
{
  // Create an 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(0);
 
}
 
void WriteImage(ImageType::Pointer image, std::string filename)
{
  typedef  itk::ImageFileWriter< ImageType  > WriterType;
  WriterType::Pointer writer = WriterType::New();
  writer->SetFileName(filename);
  writer->SetInput(image);
  writer->Update();
}
</source>
 
==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)
 
PROJECT(ConstantPadImageFilter)
 
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(ConstantPadImageFilter ConstantPadImageFilter.cxx)
TARGET_LINK_LIBRARIES(ConstantPadImageFilter
vtkHybrid
${ITK_LIBRARIES})
 
</source>

Latest revision as of 22:26, 30 May 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.

[ITK Sphinx Examples]