x-,y- and z-translations are stored in the last column of the matrix,
s_3115matrix.htm for more details
hope this helps
On 18 Oct 2004, at 20:35, Heather Emmerton wrote:
> Thank very much, the faq has been tremendously helpful. I'm now
> having the
> problem that my centre of volume is not where it starting in my image.
> I see
> from the faq that I need to add an offset to the .mat transform file.
> Are the
> last four values (the bottom row - 0 0 0 1) of this file offsets? I
> really clear on which values to change to add the offset.
> Thanks again!!
> ----- Original Message -----
> From: "Christian F. Beckmann" <[log in to unmask]>
> Date: Monday, October 4, 2004 3:48 pm
> Subject: Re: [FSL] losing resolution with FLIRT
>> Hi Heather,
>> it's in the FAQ, have a look at
>> On 4 Oct 2004, at 23:43, Heather Emmerton wrote:
>>> I intend to use FLIRT to register images to the MNI avg152T1
>> standard> brain.
>>> Seems to be working well, as the alignments are coming out nicely,
>>> since FLIRT uses the reference image format in the output I
>> losing> resolution in my image as my images are being shrunk from
>> 256x256x124> to
>>> 91x109x91 pixels. Is there any way to stretch the MNI image into my
>>> coordinate space before running FLIRT, so my output images are
>> the same
>>> size as my input images?
>>> Thanks for your help!
>> Christian F. Beckmann
>> Oxford University Centre for Functional
>> Magnetic Resonance Imaging of the Brain,
>> John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
>> Email: [log in to unmask] -
>> http://www.fmrib.ox.ac.uk/~beckmann/ Phone: +44(0)1865 222782 Fax:
>> +44(0)1865 222717
Christian F. Beckmann
Oxford University Centre for Functional
Magnetic Resonance Imaging of the Brain,
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
Email: [log in to unmask] - http://www.fmrib.ox.ac.uk/~beckmann/
Phone: +44(0)1865 222782 Fax: +44(0)1865 222717