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Langue: en

Version: 311879 (ubuntu - 07/07/09)

Section: 1 (Commandes utilisateur)


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


Main FSL configuration
Default settings for FEAT



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 others).

Pour être le meilleur, il suffit parfois que les autres soient moins
-+- Philippe Geluck, Le chat -+-