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if it is ok for your task to use the function: spm_coreg_ui.m, I could give you an answer:
(SPM2) just replace in spm_coreg.m :
def_flags = struct('sep',[4 2],'params',[0 0 0 0 0 0], 'cost_fun','nmi','fwhm',[7
7],...
'tol',[0.02 0.02 0.02 0.001 0.001 0.001 0.01 0.01 0.01 0.001
0.001 0.001],'graphics',1);
by
def_flags = struct('sep',[4 2],'params',[0 0 0 0 0 0 1 1 1], 'cost_fun','nmi','fwhm',[7
7],...
'tol',[0.02 0.02 0.02 0.001 0.001 0.001 0.01 0.01 0.01 0.001
0.001 0.001],'graphics',1);
The 'params' are the the starting-parameters for the transformation
used in spm_coreg_ui.m. By replacing the 'params', as I did above, the
transformation used during the coregistration algorithm is switched from
a 6-parametric to a 9-parametric affine transformation.
kamran kazemi wrote:
Dear SPMersthe affine normalization in SPM estimate 12 parameters. is there a way to do normalization in using only 9 parameters? i mean doning the normalization with scale, rotation and displacement? Regardskamran
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-Siawoosh
Siawoosh Mohammadi Dept. of Neurology University of Muenster Phone: +49-251-8352061 Albert-Schweitzer-Strasse 33 Fax: +49-251-8348181 48129 Muenster, Germany E-mail: [log in to unmask]