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       fsl - analysis tools for FMRI, MRI and DTI brain imaging


       FSL  is  a  comprehensive  toolkit  for  the  analysis of medical brain
       imaging  data.   It  provides  tools  for  data  preprocessing,   brain
       extraction,  image  registration  as well as statistical analysis.  FSL
       provides an easy to use GUI.

       FSL requires a number of environment variables to be set properly.   To
       achieve this source the config script from /etc/fsl/  One way to
       do this automatically is to add a line containing

               . /etc/fsl/

       to the .bashrc file in a users home directory (or a corresponding  file
       for other shells than bash).

       However,  it  is  not necessary to manually source the configuration to
       use the GUI applications included in FSL.

       FSL documentation and online help is provided by the fsl-doc package.

       Questions regarding the usage of FSL or related theory can be posted on
       the FSL mailing list (see


       FSL can be configured to submit jobs to a running Sun Gridengine (SGE).
       While not all functionality implemented in FSL supports  this  kind  of
       parallelization,  the  most demanding processing tools (e.g. POSSUM and
       FDT) do.

       FSL should be able to use SGE even if the SGE_ROOT environment variable
       is  not  set,  as  in  the case of the Debian package of SGE. To enable
       batch processing simply set


       in the shell where FSL is running. This can be enabled permanently in


       or on a case by case basis.


              Main FSL configuration

              Default settings for FEAT


       fsl-selftest(1), fslview(1)

       The FSL homepage at


       FSL was written by FMRIB, Oxford, UK.

       This    manual    page     was     written     by     Michael     Hanke
       <>,  for  the Debian project (but may be used by