Hi all, What is the most efficient class in vtk to perform a 3D convolution of a vtkImageData with a symmetric kernel. I have the kernel as an array like [0,1,2,3,4,3,2,1,0.5]. Thank you Jothy -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20100813/acde4e99/attachment.htm>