#0  0x000000000053dc9d in itk::ZeroFluxNeumannBoundaryCondition<itk::Image<double, 2u> >::operator() ()
#1  0x000000000053b350 in itk::NeighborhoodAccessorFunctor<itk::Image<double, 2u> >::BoundaryCondition ()
#2  0x000000000053cdd0 in itk::ConstNeighborhoodIterator<itk::Image<double, 2u>, itk::ZeroFluxNeumannBoundaryCondition<itk::Image<double, 2u> > >::GetPixel ()
#3  0x000000000053b1d2 in itk::ConstNeighborhoodIterator<itk::Image<double, 2u>, itk::ZeroFluxNeumannBoundaryCondition<itk::Image<double, 2u> > >::GetPixel ()
#4  0x0000000000567016 in itk::CannyEdgeDetectionImageFilter<itk::Image<double, 2u>, itk::Image<double, 2u> >::FollowEdge ()
#5  0x00000000005673fd in itk::CannyEdgeDetectionImageFilter<itk::Image<double, 2u>, itk::Image<double, 2u> >::HysteresisThresholding ()
#6  0x000000000056773f in itk::CannyEdgeDetectionImageFilter<itk::Image<double, 2u>, itk::Image<double, 2u> >::GenerateData ()
#7  0x000000000064041f in itk::ProcessObject::UpdateOutputData ()
#8  0x000000000062d1e2 in itk::DataObject::UpdateOutputData ()
#9  0x00000000006400aa in itk::ProcessObject::UpdateOutputData ()
#10 0x000000000062d1e2 in itk::DataObject::UpdateOutputData ()
#11 0x000000000062cfea in itk::DataObject::Update ()
#12 0x000000000063f6d0 in itk::ProcessObject::UpdateLargestPossibleRegion ()
#13 0x0000000000566258 in itk::ImageFileWriter<itk::Image<unsigned short, 2u> >::Write ()
#14 0x000000000052738c in itk::ImageFileWriter<itk::Image<unsigned short, 2u> >::Update ()
#15 0x000000000052698f in main ()