mri_binarize --i paxinos-MNI.nii --match 1 --o labels/1.nii

$Id: mri_binarize.c,v 1.26.2.1 2011/04/08 15:40:50 greve Exp $
cwd /rdata3/space3/data/cschwiedrz/cooked/anatomicals/mni_macaque
cmdline mri_binarize --i paxinos-MNI.nii --match 1 --o labels/1.nii
sysname  Linux
hostname wiener
machine  x86_64
user     cschwiedrz

input      paxinos-MNI.nii
frame      0
nErode3d   0
nErode2d   0
output     labels/1.nii
Binarizing based on matching values
nMatch 1
 0     1
binval        1
binvalnot     0
Found 0 values in range
Counting number of voxels
Found 0 voxels in final mask
mri_binarize done



2014/1/22 Bruce Fischl <fis...@nmr.mgh.harvard.edu>

> can you send us the full command line and screen output of the
> mri_binarize command?
>
> On Wed, 22 Jan 2014, Caspar M. Schwiedrzik wrote:
>
>  Hi Bruce,
>> I am confused, too.
>> If the conversion is proper, why does mri_binarize not find values below
>> ~53? when I call mri_binarize with -match on the MNC file or on any of the
>> converted NIFTI files?
>> Caspar
>>
>>
>>
>>
>> 2014/1/22 Bruce Fischl <fis...@nmr.mgh.harvard.edu>
>>       Hi Caspar
>>
>>       now, I'm confused. So it sounds like mri_convert is doing the
>>       conversion properly then?
>>       Bruce
>>       On Wed, 22 Jan 2014, Caspar M. Schwiedrzik wrote:
>>
>>             Hi Bruce,
>>             mri_diff does not return any differences. However,
>>             when I load the MNC file
>>             into Matlab using loadminc
>>             (http://www.mathworks.com/matlabcentral/fileexchange/
>> 32644-loadminc),
>>             I do
>>             retain all the values between 0 and 255. Also, I
>>             have something like an
>>             annotation file for the MNC file that lists values
>>             between 0 and 255.
>>             The MNC is unsigned byte.
>>             Caspar
>>
>>
>>             2014/1/22 Bruce Fischl <fis...@nmr.mgh.harvard.edu>
>>                   how do you know that the values were there
>>             before? Try running
>>                   mri_diff on the .nii and the .mnc and see if
>>             it finds any
>>                   differences
>>                   Bruce
>>
>>
>>                   On Wed, 22 Jan 2014, Caspar M. Schwiedrzik
>>             wrote:
>>
>>                         Hi Bruce,
>>                         I have tried the two following commands,
>>             and various
>>                         flags on mri_convert:
>>                         mnc2nii -nii -int paxinos-MNI.mnc
>>             paxinos-MNI.nii
>>                         mri_convert -i paxinos-MNI.mnc -o
>>             paxinos-MNI.nii
>>
>>                         Yhe output of the latter would be:
>>                         mri_convert -i paxinos-MNI.mnc -o
>>             paxinos-MNI.nii
>>                         $Id: mri_convert.c,v 1.179.2.2
>>             2011/05/16 20:53:47
>>                         greve Exp $
>>                         reading from paxinos-MNI.mnc...
>>                         TR=0.00, TE=0.00, TI=0.00, flip
>>             angle=0.00
>>                         i_ras = (1, 0, 0)
>>                         j_ras = (0, 1, 0)
>>                         k_ras = (0, 0, 1)
>>                         writing to paxinos-MNI.nii...
>>
>>                         for mri_convert, --nochange, -odt
>>             float/int/uchar,
>>                         --no_scale 1 all do not
>>                         make a difference.
>>
>>                         It could be that the problem arises once
>>             I call
>>                         mri_binarize afterwards. I
>>                         know that there are values between 1 and
>>             256 in the
>>                         MNC file, but when I
>>                         call mri_binarize with -match on the MNC
>>             file or on
>>                         any of the converted
>>                         NIFTI files, it does not find any values
>>             lower than
>>                         53 or so.
>>
>>                         Caspar
>>
>>
>>
>>
>>                         2014/1/22 Bruce Fischl
>>             <fis...@nmr.mgh.harvard.edu>
>>                               Hi Caspar
>>
>>                               hmm, I don't know why that would
>>             be the case.
>>                         Can you send the
>>                               full command line and screen
>>             output?
>>                               cheers
>>                               Bruce
>>                               On Wed, 22 Jan 2014, Caspar M.
>>             Schwiedrzik
>>                         wrote:
>>
>>                                     Hi!
>>                                     I am having some troubles
>>             converting MNC
>>                         files to
>>                                     NII while preserving the
>>                                     exact values in the MNC
>>             file. I have
>>                         tried to use
>>                                     mri_convert and mnc2nii,
>>                                     but in both cases, the
>>             values in the
>>                         file output get
>>                                     changed. The help of
>>                                     mri_convert mentions that
>>             the output for
>>                         MNC files
>>                                     may not work.
>>                                     Is there a workaround or a
>>             recommended
>>                         procedure to
>>                                     convert MNC into NII?
>>                                     Thanks, Caspar
>>
>>
>>
>>
>>
>>
>>
>>
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