Unlike the translation parameters, there is no way to directly read what rotation amounts need to be entered. You simply have to try out a few numbers and adjust them until you found a set of rotations that work for the particular image. After a while you tend to get a good feel for the amounts that are necessary for each image.
I suggest just playing around with it to observe the effects of different numbers. Keep in mind that the angles are entered in radians, e.g. entering +/-0.2 is equivalent to a rotation of approx. +/-11 degrees.
Hope this makes sense,
Andreas Finkelmeyer, Ph.D.
Institute of Neuroscience, Academic Psychiatry
Campus for Ageing and Vitality, Bldg. 15
Newcastle upon Tyne
NE4 6BE, UK
Tel.: +44 (0)191 256 3296 Fax: +44 (0)191 256 3324
>From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]]
>On Behalf Of John Hope
>Sent: 08 August 2011 01:57
>To: [log in to unmask]
>Subject: [SPM] Basic question about reorient
>I am new user of SPM8 I meet a problem of reorient. On the tutorial, the
>image should be approximately aligned within about 5cm and about 20
>degrees of the template before it is processed, I can easily make the image
>about 5cm aligned with the template by inputting the minused "the mm
>coordinates "shown for the AC. But for adjusting "pitch" or "roll", and "yoll"
>(the degrees), I can't find the data for inputting. Would someone like to tell
>me where I can find the data, which indicate the difference between my
>image compared with the template? So I can input it into the "pitch" or "roll",
>and "yoll" for the reorient.
>Thanks a lots