Hi Dan
I think specifying -ns 1 will do the trick
cheers
Bruce
On Fri, 31 Jan 2014, Daniel Carey
wrote:
Dear All,
We have been using mri_convert to convert .nii format quantitative scans
(specifically R1 volumes) into .mgz (float) format, so they can be used as
input to mri_vol2surf. Inputting the .nii files to mri_vol2surf has produced
an error in values in the output paint file, whereas this issue appears not
to occur with the .mgz input.
In running mri_convert, we are encountering an issue with the scaling of
image values. Optimally, we would like to preserve the values within the
quantitative volume, such that mri_convert does not change these when we
output to .mgz. In some cases, we have noted non-linear differences in the
output .mgz values, compared to the input volume. We have been using the -ns
flag, and still see these issues.
Is there a way to set the output .mgz scale factor to preserve the existing
values exactly as per the quantitative input volume?
Any advice would be greatly appreciated. Many thanks in advance.
Best wishes,
Dan
---
Daniel Carey
Marie Curie Ph.D. Fellow,
Centre for Brain and Cognitive Development,
32 Torrington Sq.,
London WC1E 7HX
UK
email: d.ca...@bbk.ac.uk
web: http://www.cbcd.bbk.ac.uk/people/students/daniel_carey
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