Rotations are around the origin of the image.  If you want to rotate around some point, you&#39;d need to translate the image so that the point is at the origin, do the rotation and then translate back again (with minus the first set of translations).<br>Best regards,<br>John<br><br><br>University of Edinburgh JS &lt;<a href="/cgi-bin/wa-jisc.exe?LOGON=A3%3Dind1409%26L%3DSPM%26E%3Dbase64%26P%3D5566816%26B%3D----_com.android.email_2561768971251209%26T%3Dtext%252Fhtml%3B%2520charset%3Dutf-8%26pending%3D" target="_parent" >[log in to unmask]</a>&gt; wrote:<br>I have been trying to alter the pitch of a image file - rectangular voxel (exported from a .mat marsbar ROI).  All I want to do is slightly alter the angle of the ROI.  I must be misunderstanding something about the pitch rotation?  

When I alter the pitch (using Display images) it is changing the angle as required.  However, the image is also moving forward.  

I have attached an example here.  

Why is this happening?  Is it possible to change the angle here without moving the voxel forward?  

Thanks