Hi Michael,
Yes, you can find the value of the voxel you click on in the box just
to the
right of the mm coordinates (second row, top button/box area).
Cheers,
Mark
On Monday, September 1, 2003, at 03:29 am, Michael L Lipton wrote:
> Thanks Mark. Once I load that cluster_mask_zstat image into FSLView,
> how do I determine the integer identity of each cluster? When I click
> on a cluster does it show this value somewhere in FSLView or do I have
> to determine the cluster size?
>
> Thanks again,
>
> Michael
>
> On Sunday, August 31, 2003, at 04:49 PM, Mark Jenkinson wrote:
>
>> Hi Michael,
>>
>> It isn't the thresh_zstat image that you want - that contains the z
>> statistic
>> values (post-thresholding). What you want is the cluster_mask_zstat
>> images.
>> These contain values from 0 to N where N is the number of clusters
>> found.
>> Note that the largest cluster has value N, the next largest has value
>> N-1, etc.
>>
>> Then, to generate an image of the cluster number M just use avwmaths
>> like:
>> avwmaths cluster_mask_zstat1 -thr M -uthr M -bin outputclustermask
>>
>> All the best,
>> Mark
>>
>>
>> On Friday, August 29, 2003, at 07:57 pm, Michael Lipton wrote:
>>
>>> At the course in LA, one of the FMRIB people indicated that when
>>> viewed in
>>> FSLView, each cluster in thresh_zstat.hdr will have a unique integer
>>> value. This could be used to create a mask of one cluster only by
>>> thresholding in avwmaths. Now as I look at my zstat image in FSLview
>>> I
>>> am
>>> not clear how I identify the clusters.
>>>
>>> In any case, what is the best way to generate a binary mask of only
>>> one
>>> cluster?
>>>
>>> Thanks,
>>>
>>> Michael
>>
|