typename PatchExtractor<PValue>::MaskType::Pointer PatchExtractor<PValue>::ExtractMask()
{
ContIndexType startIndex;
for(unsigned int i = 0; i < 2; i++)
{
startIndex[i] = m_Center[i] - (m_Size[i] / 2.0);
}
startIndex[2] = 0;
typename ImageType::IndexType properIndex;
for(unsigned int i = 0; i < 3; i++)
{
properIndex[i] = round(startIndex[i]);
}
for(unsigned int i = 0; i < 2; i++)
{
if(properIndex[i] < 0) properIndex[i] = 0;
if((m_Size[i] + properIndex[i]) > (m_Image->GetLargestPossibleRegion().GetSize()[i]-1))
{
m_Size[i] = m_Image->GetLargestPossibleRegion().GetSize()[i]-1-properIndex[i];
}
}
MaskType::RegionType region;
region.SetIndex(properIndex);
m_Size[2] = 1;
region.SetSize(m_Size);
MaskType::Pointer mask = MaskType::New();
mask->SetDirection(m_Image->GetDirection());
mask->SetSpacing(m_Image->GetSpacing());
mask->SetOrigin(m_Image->GetOrigin());
mask->SetRegions(m_Image->GetLargestPossibleRegion());
mask->Allocate();
mask->FillBuffer(0);
itk::ImageRegionIterator<MaskType> imageIt(mask, region);
while(!imageIt.IsAtEnd())
{
imageIt.Set(m_MaskValue);
++imageIt;
}
return mask;
}
itk::Image<unsigned char, 3>::Pointer pdp::EMClassification::classify(itk::Image<float, 3>::Pointer img, itk::Image<unsigned char, 3>::Pointer mask)
{
typedef itk::Vector< double, 1 > MeasurementVectorType;
typedef itk::Image<unsigned char, 3> MaskType;
typedef itk::Image<float, 3> ImageType;
typedef itk::ImageRegionConstIterator< ImageType > ImageIteratorType;
ImageIteratorType imgIt(img, img->GetLargestPossibleRegion());
typedef itk::ImageRegionConstIterator< MaskType> MaskIteratorType;
MaskIteratorType maskIt( mask, mask->GetLargestPossibleRegion());
MaskType::Pointer correctImage = MaskType::New();
correctImage->CopyInformation(mask);
MaskType::RegionType outputRegion = mask->GetLargestPossibleRegion();
correctImage->SetRegions( outputRegion );
correctImage->Allocate();
typedef itk::ImageRegionIterator<MaskType> IteratorType;
IteratorType outputIt( correctImage, outputRegion);
MeasurementVectorType mv;
for ( imgIt.GoToBegin(), maskIt.GoToBegin(), outputIt.GoToBegin(); !maskIt.IsAtEnd(); ++maskIt, ++imgIt, ++outputIt)
{
if (maskIt.Get() == 255)
{
mv[0] = imgIt.Get();
if (genLabel(mv) == 3)
{
outputIt.Set(255);
}
}
}
return correctImage;
}