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Hi - I've never tried slicer on a 4D image - I suspect it will only process the first timepoint. NIFTI and Analyze should get processed the same - but maybe they have different header information regarding the intensity range in the image. Cheers. On 15 Oct 2011, at 03:45, Michael Waskom wrote: > Hi All, > > If you pass an 4D image to slicer, does it mean over the temporal dimension before creating the png? I ask because we were looking at two slicer outputs that should have been the same data, where one was in Analyze format (passed in a single volume) and the other a 4D nifti, and the nifti image appeared to have much better contrast to noise. (I know nifti is better, but I didn't think that was one of the virtues!) > > Can you think of anything else that would account for this? > > Michael --------------------------------------------------------------------------- Stephen M. Smith, Professor of Biomedical Engineering Associate Director, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222726 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~steve ---------------------------------------------------------------------------