ITK/Examples/Segmentation/OtsuThresholdImageFilter

Shell.

OtsuThresholdImageFilter.cxx

<source lang="cpp">

1. include "itkImage.h"
2. include "itkImageFileWriter.h"
3. include "itkOtsuThresholdImageFilter.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::OtsuThresholdImageFilter <ImageType, ImageType>
         OtsuThresholdImageFilterType;
 OtsuThresholdImageFilterType::Pointer otsuFilter
         = OtsuThresholdImageFilterType::New();
 otsuFilter->SetInput(image);
 otsuFilter->Update();

 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;
 region.SetSize(size);
 region.SetIndex(start);

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

 // Make the whole image white
 itk::ImageRegionIterator<ImageType> iterator(image,image->GetLargestPossibleRegion());

 /*
  //Create a square
 while(!iterator.IsAtEnd())
   {
   iterator.Set(255);
   ++iterator;
   }
 */

}

</source>

CMakeLists.txt

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

PROJECT(OtsuThresholdImageFilter)

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

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

</source>