ITK/Examples/ImageProcessing/RegionalMaximaImageFilter

RegionalMaximaImageFilter.cxx

<source lang="cpp">

1. include "itkImage.h"
2. include "itkImageFileWriter.h"
3. include "itkRescaleIntensityImageFilter.h"
4. include "itkRegionalMaximaImageFilter.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::RegionalMaximaImageFilter <ImageType, ImageType >
         RegionalMaximaImageFilter;

 RegionalMaximaImageFilter::Pointer filter
         = RegionalMaximaImageFilter::New ();
 filter->SetInput(image);
 filter->Update();

 return EXIT_SUCCESS;

}

void CreateImage(ImageType::Pointer image) {

 // Create an image with 2 connected components
 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 a square
 for(unsigned int r = 20; r < 80; r++)
 {
     for(unsigned int c = 20; c < 80; c++)
     {
         ImageType::IndexType pixelIndex;
         pixelIndex[0] = r;
         pixelIndex[1] = c;

         image->SetPixel(pixelIndex, 15);
     }
 }

}

</source>

CMakeLists.txt

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

PROJECT(RegionalMaximalImageFilter)

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

ADD_EXECUTABLE(RegionalMaximalImageFilter RegionalMaximalImageFilter.cxx) TARGET_LINK_LIBRARIES(RegionalMaximalImageFilter ITKBasicFilters ITKCommon ITKIO) </source>