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{{warning|1=The media wiki content on this page is no longer maintained.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 "itkConstantPadImageFilter.h"
#include "itkImageRegionIterator.h"


#include "QuickView.h"
[https://itk.org/ITKExamples[ITK Sphinx Examples]]
 
typedef itk::Image<unsigned char, 2>  ImageType;
 
static void CreateImage(ImageType::Pointer image);
 
int main(int, char *[])
{
  ImageType::Pointer image = ImageType::New();
  CreateImage(image);
 
  typedef itk::ConstantPadImageFilter <ImageType, ImageType>
    ConstantPadImageFilterType;
 
  ImageType::SizeType lowerExtendRegion;
  lowerExtendRegion[0] = 20;
  lowerExtendRegion[1] = 30;
 
  ImageType::SizeType upperExtendRegion;
  upperExtendRegion[0] = 50;
  upperExtendRegion[1] = 40;
 
  ImageType::PixelType constantPixel = 100;
 
  ConstantPadImageFilterType::Pointer padFilter
    = ConstantPadImageFilterType::New();
  padFilter->SetInput(image);
  padFilter->SetPadLowerBound(lowerExtendRegion);
  padFilter->SetPadUpperBound(upperExtendRegion);
  padFilter->SetConstant(constantPixel);
 
  QuickView viewer;
  viewer.AddImage<ImageType>(image);
  viewer.AddImage<ImageType>(padFilter->GetOutput());
  viewer.Visualize();
 
  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;
  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 the whole image white
  itk::ImageRegionIterator<ImageType> iterator(image,image->GetLargestPossibleRegion());
 
  while(!iterator.IsAtEnd())
    {
    iterator.Set(255);
    ++iterator;
    }
}
</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
ITKBasicFilters ITKCommon ITKIO)
 
</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]