Add the following: --interp=nn
All the best,
Mark
On 29 Nov 2012, at 08:36, Ai Qing <[log in to unmask]> wrote:
> Thank you, Mark!
>
> You help me a lot!
> You mean that just adding the option parameter -interp nn?
>
> 在 2012-11-29,下午4:33,Mark Jenkinson <[log in to unmask]> 写道:
>
>> Hi,
>>
>> Use nearest neighbour interpolation in the applywarp command.
>> That should fix it.
>>
>> All the best,
>> Mark
>>
>>
>> On 29 Nov 2012, at 08:11, Ai Qing <[log in to unmask]> wrote:
>>
>>> Dear FSL experts,
>>>
>>> I drew the brain anatomical region in the standard MNI152 image and got the original MPRAGE space anatomical region. The following is my protocal:
>>> 1) MPR FNIRT to MNI152 and get the warp file.
>>> 2) Getting the MNI to MPR warp file using invwarp.
>>> 3) Getting the original space region mask using applywap.
>>>
>>> But when I loaded the original space mask in the ITK_SNAP(just want to calculate the volume of different anatomical region), the border of different anatomical region is not clear(just like the following). Some people think it's caused by partial volume effect and can solve it by using nearest neighbor interpolation in the invwarp. But I tried this, it does not work. How could I solve it?
>>> <屏幕快照 2012-11-29 下午4.09.20.png>
>
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