bbSetOutputTypeName(bbtk::TypeName<typename itkImageType::PixelType>());
bbSetOutputDimension(dim);
const typename itkImageType::RegionType& r =im->GetLargestPossibleRegion();
bbSetOutputLargestPossibleRegion(r);
bbSetOutputTypeName(bbtk::TypeName<typename itkImageType::PixelType>());
bbSetOutputDimension(dim);
const typename itkImageType::RegionType& r =im->GetLargestPossibleRegion();
bbSetOutputLargestPossibleRegion(r);