void StrokeMask::
Write(const std::string& filename,
const TPixel& strokeValue)
{
typedef itk::Image<TPixel, 2> ImageType;
typename ImageType::Pointer image = ImageType::New();
image->SetRegions(this->GetLargestPossibleRegion());
image->Allocate();
itk::ImageRegionConstIteratorWithIndex<StrokeMask>
maskIterator(this,
this->GetLargestPossibleRegion());
while(!maskIterator.IsAtEnd())
{
if(maskIterator.Get() == StrokeMaskPixelTypeEnum::STROKE)
{
image->SetPixel(maskIterator.GetIndex(),
strokeValue);
}
else
{
image->SetPixel(maskIterator.GetIndex(), itk::NumericTraits<TPixel>::Zero);
}
++maskIterator;
}
typedef itk::ImageFileWriter<ImageType> WriterType;
typename WriterType::Pointer writer = WriterType::New();
writer->SetFileName(filename);
writer->SetInput(image);
writer->Update();
}
void ForegroundBackgroundSegmentMask::
Write(const std::string& filename,
const ForegroundPixelValueWrapper<TPixel>& foregroundValue,
const BackgroundPixelValueWrapper<TPixel>& backgroundValue)
{
typedef itk::Image<TPixel, 2> ImageType;
typename ImageType::Pointer image = ImageType::New();
image->SetRegions(this->GetLargestPossibleRegion());
image->Allocate();
itk::ImageRegionConstIteratorWithIndex<ForegroundBackgroundSegmentMask>
maskIterator(this,
this->GetLargestPossibleRegion());
while(!maskIterator.IsAtEnd())
{
if(maskIterator.Get() == ForegroundBackgroundSegmentMaskPixelTypeEnum::FOREGROUND)
{
image->SetPixel(maskIterator.GetIndex(),
foregroundValue.Value);
}
else if(maskIterator.Get() == ForegroundBackgroundSegmentMaskPixelTypeEnum::BACKGROUND)
{
image->SetPixel(maskIterator.GetIndex(), backgroundValue.Value);
}
++maskIterator;
}
typedef itk::ImageFileWriter<ImageType> WriterType;
typename WriterType::Pointer writer = WriterType::New();
writer->SetFileName(filename);
writer->SetInput(image);
writer->Update();
}
SEXP addNeighborhoodToImageHelper(
SEXP r_antsimage,
SEXP r_center,
SEXP r_rad,
SEXP r_vec)
{
typedef typename ImageType::Pointer ImagePointerType;
const unsigned int ImageDimension = ImageType::ImageDimension;
typedef float PixelType;
typename ImageType::Pointer image =
Rcpp::as< ImagePointerType >( r_antsimage );
Rcpp::NumericVector center( r_center );
Rcpp::NumericVector rad( r_rad );
Rcpp::NumericVector intvec( r_vec );
if ( center.size() != ImageDimension )
Rcpp::stop("addNeighborhoodToImageHelper dim error.");
typename itk::NeighborhoodIterator<ImageType>::SizeType nSize;
typename ImageType::IndexType ind;
ind.Fill( 0 );
for ( unsigned int i=0; i<ImageDimension; i++ )
{
nSize[i] = rad[i];
ind[i] = center[i]; // R coords to ITK
}
itk::NeighborhoodIterator<ImageType> nit( nSize, image,
image->GetLargestPossibleRegion() ) ;
// for each location in nitSearch, compute the correlation
// of the intvec with the nit neighborhood
nit.SetLocation( ind );
for( unsigned int i = 0; i < nit.Size(); i++ )
{
typename ImageType::IndexType ind2 = nit.GetIndex(i);
PixelType lval = image->GetPixel( ind2 );
image->SetPixel( ind2, lval + intvec[i] );
}
return 0;
}
