---
name: "fslview"
section: "1"
platform: "linux"
package: "fslview"
version: "4.0.1-4"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/fslview"
---

# fslview(1)

viewer for 3d and 4d MRI data and DTI images

## NAME

fslview - viewer for 3d and 4d MRI data and DTI images

## SYNOPSIS

**fslview** \[-m *\<viewmode\>*\] \[*\<baseimage\> \[imageoptions*\] ... \]

## DESCRIPTION

**FSLView** is an interactive display tool for 3D, 4D and DTI data. FSLView can read Analyze and NIFTI files, either uncompressed or compressed, and either as a single file (e.g. image.nii.gz) or two files (e.g. image.hdr & image.img). **FSLView** supports multiple image overlays with indivdual color maps.

There are four different image viewing modes:

-

  **Ortho** - the default view showing axial, orthogonal and sagittal slices.

-

  **Lightbox** - shows all axial slices simultaneously.

-

  **Single** - shows only a single slice - the orientation can be switched between axial, orthogonal and sagittal and you can also turn on auto-scrolling through the slices.

-

  **3d** - renders the volume in 3d with optional clipping of brain parts and overlays of metrical data.

In addition to viewing images **FSLView** can be used to create image masks and manually edit images.

## OPTIONS

- **-V**, **--verbose**

  Switch on diagnostic messages.

- **-h**, **--help**

  Display a short usage description.

- **-m**, **--mode** *3d\|ortho\|lightbox*

  Initial viewer mode (see above mode descriptions).

## PER-IMAGE OPTIONS

- **-l**, **--lut** *\<name\>*

  Color lookup table name. The full list is available via the **FSLView** GUI (e.g. on of: *Greyscale*, *Red-Yellow*, *Blue-Lightblue*, *Red*, *Green*, *Blue*, *Yellow*, *Pink*, *Hot*, *Cool*, *Copper*, ...)

- **-b**, **--bricon** *\<min\>,\<max\>*

  Initial bricon range, e.g., "2.3,6"

- **-t**, **--trans** *\<value\>*

  Initial transparency, e.g., 0.2

## BUGREPORTS

If you discover an bugs please report them either to the FSL mailing list or to *fslview-bugs@fmrib.ox.ac.uk*.

## AUTHOR

**FSLView** was written by Dave Flitney, James Saunders, Mark Jenkinson, Steve Smith and V Rama Aravind.

This manual page was written by Michael Hanke \<michael.hanke@gmail.com\>, for the Debian project (but may be used by others).

## NOTES

**FSLView** is able to use brain atlas data to identify locations in brain volumes. However, the brain atlases that come with FSL are licensed under a non-free (non-commercial) license. Therefore they cannot be included in the FSLView package, which only contains free software.

Please see /usr/share/doc/fslview/README.Debian for more information.

## SEE ALSO

[**atlasquery**(1)](/atlasquery/1.md)**,** **fsl**(1)

- **FSLView Homepage:** http://www.fmrib.ox.ac.uk/fsl/fslview/index.html

  - **FSL Homepage:** http://www.fmrib.ox.ac.uk/fsl/