oh! yes，it is just because of the contrast and brightness value.
it seems both spm and MRIcro can adjust automatically, but fsl can't!
after i set the value in fsl as the same in MRIcro, it become the same.
does it mean that i don't need to care about these different when i try to do some analysis work on them?
can i set up FSL also to adjust automatically?
thanks!2009/9/14 Mark Jenkinson <[log in to unmask]>
Hi,
I think that SPM may view the image in a different orientation to FSLView
and also probably uses a different display range for the intensities.
If your "grey" in FSLView is a uniform colour across the image with no
features, then this probably indicates that the display range encoded
in the image was inappropriate and you need to set the values for
the display range (min and max) yourself in order to see the image
clearly. Try this and see if that works.
I doubt that any of this has any bearing on the use of fslmerge vs
3d to 4d. I think it is just about how images are typically displayed.
All the best,
Mark
On 13 Sep 2009, at 10:24, cliff wrote:
hello all，
when i use "fslmerge" & "3d to 4d" tool in spm5 to merge a group of .hdr/.img file into a 4D file(.nii and .nii.gz) separately. i find that the image result showed in “fslview” is really different.
then i find before merging into 4D file, just use “fslview” and spm5's “display” tool to check the same .hdr/.img file, the result is also different. the .hdr/img images showed in "fslview" are grey while showed in spm5 are more normal as we see usually.
any body have these experience? can you tell me why?
--
Best regards!
Sen-Hua Zhu
Department of Psychology
Sun Yat-sen University
135 Xingang West Road, Haizhu District, Guangzhou (510275), P.R.China
朱森华
中山大学心理学系
广东省广州市海珠区新港西路135号（510275）
--
Best regards!
Sen-Hua Zhu
Department of Psychology
Sun Yat-sen University
135 Xingang West Road, Haizhu District, Guangzhou (510275), P.R.China
朱森华
中山大学心理学系
广东省广州市海珠区新港西路135号（510275）