[ITK] [ITK-users] Feature image
vis
itkhelpacc at gmail.com
Tue Sep 29 07:17:37 EDT 2015
hey Francisco,
i tried to do as u said.. i could build the code as well .. i ran it
for itkBrainSliceComplex.mha successfully... i need this to run for 2d
.png file.... the code run for only one iteration.. then it throws an Abort
error... pls help me out...
#include "itkImage.h" //from
http://itk.org/Wiki/ITK/Examples/Statistics/TextureFeatures
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include <itkDenseFrequencyContainer2.h>
#include "itkHistogramToTextureFeaturesFilter.h"
#include "itkScalarImageToCooccurrenceMatrixFilter.h"
#include "itkVectorContainer.h"
#include "itkAddImageFilter.h"
#include "itkMultiplyImageFilter.h"
#include "itkRegionOfInterestImageFilter.h"
//definitions of used types
typedef itk::Image<float, 2> InternalImageType; //change from 3
typedef itk::Image<unsigned char, 2> VisualizingImageType; //change to 3
typedef itk::Neighborhood<float, 2> NeighborhoodType; //change to 3
typedef
itk::Statistics::ScalarImageToCooccurrenceMatrixFilter<InternalImageType>
Image2CoOccuranceType;
typedef Image2CoOccuranceType::HistogramType HistogramType;
typedef itk::Statistics::HistogramToTextureFeaturesFilter<HistogramType>
Hist2FeaturesType;
typedef InternalImageType::OffsetType OffsetType;
typedef itk::AddImageFilter <InternalImageType> AddImageFilterType;
typedef itk::MultiplyImageFilter<InternalImageType> MultiplyImageFilterType;
//calculate features for one offset
void calcTextureFeatureImage (OffsetType offset,
InternalImageType::Pointer inputImage, InternalImageType::Pointer
outInertia,
InternalImageType::Pointer outCorrelation, InternalImageType::Pointer
outEnergy)
{
//allocate output images
outInertia->CopyInformation(inputImage);
outInertia->SetRegions(inputImage->GetLargestPossibleRegion());
outInertia->Allocate();
outInertia->FillBuffer(0);
outCorrelation->CopyInformation(inputImage);
outCorrelation->SetRegions(inputImage->GetLargestPossibleRegion());
outCorrelation->Allocate();
outCorrelation->FillBuffer(0);
outEnergy->CopyInformation(inputImage);
outEnergy->SetRegions(inputImage->GetLargestPossibleRegion());
outEnergy->Allocate();
outEnergy->FillBuffer(0);
Image2CoOccuranceType::Pointer
glcmGenerator=Image2CoOccuranceType::New();
glcmGenerator->SetOffset(offset);
glcmGenerator->SetNumberOfBinsPerAxis(16); //reasonable number of bins
glcmGenerator->SetPixelValueMinMax(0, 255); //for input UCHAR pixel type
Hist2FeaturesType::Pointer featureCalc=Hist2FeaturesType::New();
typedef
itk::RegionOfInterestImageFilter<InternalImageType,InternalImageType>
roiType;
roiType::Pointer roi=roiType::New();
roi->SetInput(inputImage);
InternalImageType::RegionType window;
InternalImageType::RegionType::SizeType size;
// size.Fill(3); //window size=3x3x3
size.Fill(2);
window.SetSize(size);
InternalImageType::IndexType pi; //pixel index
//slide window over the entire image
for (unsigned x=1;
x<inputImage->GetLargestPossibleRegion().GetSize(0)-1; x++)
{
pi.SetElement(0,x);
window.SetIndex(0,x-1);
for (unsigned y=1;
y<inputImage->GetLargestPossibleRegion().GetSize(1)-1; y++)
{
pi.SetElement(1,y);
window.SetIndex(1,y-1);
/* for (unsigned z=1;
z<inputImage->GetLargestPossibleRegion().GetSize(2)-1; z++)
{
pi.SetElement(2,z);
window.SetIndex(2,z-1);*/
roi->SetRegionOfInterest(window);
roi->Update();
glcmGenerator->SetInput(roi->GetOutput());
glcmGenerator->Update();
featureCalc->SetInput( glcmGenerator->GetOutput() );
featureCalc->Update();
outInertia->SetPixel(pi,
featureCalc->GetFeature(Hist2FeaturesType::Inertia));
outCorrelation->SetPixel(pi,
featureCalc->GetFeature(Hist2FeaturesType::Correlation));
outEnergy->SetPixel(pi,
featureCalc->GetFeature(Hist2FeaturesType::Energy));
// }
}
std::cout<<'.';
}
}
int main(int argc, char*argv[])
{
if(argc < 2)
{
std::cerr << "Usage: " << argv[0] << " Required image.dcm" << std::endl;
return EXIT_FAILURE;
}
std::string fileName = argv[1];
typedef itk::ImageFileReader<InternalImageType> ReaderType;
ReaderType::Pointer reader=ReaderType::New();
reader->SetFileName(fileName);
reader->Update();
InternalImageType::Pointer image=reader->GetOutput();
NeighborhoodType neighborhood;
neighborhood.SetRadius(1);
unsigned int centerIndex = neighborhood.GetCenterNeighborhoodIndex();
OffsetType offset;
typedef itk::ImageFileWriter<InternalImageType> WriterType;
WriterType::Pointer writer=WriterType::New();
for ( unsigned int d = 0; d < centerIndex; d++ )
{
offset = neighborhood.GetOffset(d);
InternalImageType::Pointer inertia=InternalImageType::New();
InternalImageType::Pointer correlation=InternalImageType::New();
InternalImageType::Pointer energy=InternalImageType::New();
calcTextureFeatureImage(offset, image, inertia, correlation, energy);
writer->SetInput(inertia);
// snprintf(buf, 100, "Inertia%u.mha", d); // Warning: call to int
__builtin___snprintf_chk will always overflow destination buffer
std::stringstream ssInertia;
// ssInertia << "Inertia" << d << ".mha";
ssInertia << "Inertia" << d << ".dcm";
writer->SetFileName(ssInertia.str());
writer->Update();
writer->SetInput(correlation);
std::stringstream ssCorrelation;
// ssCorrelation << "Correlation" << d << ".mha";
ssCorrelation << "Correlation" << d << ".dcm";
writer->SetFileName(ssCorrelation.str());
writer->Update();
writer->SetInput(energy);
std::stringstream ssEnergy;
// ssEnergy << "Energy" << d << ".mha";
ssEnergy << "Energy" << d << ".dcm";
writer->SetFileName(ssEnergy.str());
writer->Update();
std::cout<<'\n';
}
return EXIT_SUCCESS;
}
On Tue, Sep 29, 2015 at 11:59 AM, Francisco López-Franca [via ITK Insight
Users] <ml-node+s2283740n7587930h86 at n2.nabble.com> wrote:
> Hi,
> Use 2 as dimension for the image type, neighbour, and loop only for x and
> y axis, not z.
> I hope this helps.
> Regards.
>
> 2015-09-29 7:27 GMT+02:00 vis <[hidden email]
> <http:///user/SendEmail.jtp?type=node&node=7587930&i=0>>:
>
>> hey itk users
>> i was trying to learn itk and I came across a code in [1]. it takes an 3d
>> image as input and produces an feature image as an output.. i want to use
>> it
>> for 2d image... could anyone please tell me how?
>> regards
>> vis
>> [1] http://itk.org/Wiki/ITK/Examples/Statistics/TextureFeatures
>> <http://itk.org/Wiki/ITK/Examples/Statistics/TextureFeatures>
>>
>>
>>
>> --
>> View this message in context:
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>
>
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