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On Monday 17 September 2001 19:37, Michael Kane wrote: > I am trying to co-register my T1 anatomical images with the EPI images and > I continually get the same error message "not enough overlap in the images > to obtain a solution --check the header to make sure the info is OK" The > dimensions for the T1 anatomical are 256, 256, 16 (.781, .781, 7.0) and for > the EPI images 64, 64, 16 (3.125, 3.125, 9.0). I have also changed the > origin to (0,0,0) for all the images and this still gave me the same error. > Any ideas? You may find a few clues in (for example) some of the following links: http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0103&L=spm&P=R2769 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0012&L=spm&P=R10170 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0011&L=spm&P=R9458 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0008&L=spm&P=R2594 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0006&L=spm&P=R9989 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0003&L=spm&P=R24585 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0011&L=spm&P=R9458 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind9810&L=spm&P=R3537 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind9810&L=spm&P=R5769 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind9810&L=spm&P=R8519 http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind9905&L=spm&P=R2387 Best regards, -John -- Dr John Ashburner. Wellcome Department of Cognitive Neurology. 12 Queen Square, London WC1N 3BG, UK. tel: +44 (0)20 78337491 or +44 (0)20 78373611 x4381 fax: +44 (0)20 78131420 http://www.fil.ion.ucl.ac.uk/~john mail: [log in to unmask]