---
name: "cmtk-unsplit"
section: "1"
platform: "linux"
package: "cmtk"
version: "3.3.1p2+dfsg-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/cmtk-unsplit"
---

# cmtk-unsplit(1)

Unsplit images

## NAME

unsplit - Unsplit images

## SYNOPSIS

unsplit \[options\] inImage0 inImage1 ...

## DESCRIPTION

Join separate image stacks into a single interleaved image volume

## OPTIONS

### Global Toolkit Options (these are shared by all CMTK tools)

- **--help**

  Write list of basic command line options to standard output.

- **--help-all**

  Write complete list of basic and advanced command line options to standard output.

- **--wiki**

  Write list of command line options to standard output in MediaWiki markup.

- **--man**

  Write man page source in 'nroff' markup to standard output.

- **--version**

  Write toolkit version to standard output.

- **--echo**

  Write the current command line to standard output.

- **--verbose-level** *\<integer\>*

  Set verbosity level.

- **--verbose**, **-v**

  Increment verbosity level by 1 (deprecated; supported for backward compatibility).

- **--threads** *\<integer\>*

  Set maximum number of parallel threads (for POSIX threads and OpenMP).

- **--output** *\<string\>*, **-o** *\<string\>*

  Path for output image. **\[Default: NONE\]**

### Stacking Options

- **--stacking**

  Define slice axis for stacking. Supported values: "axial", "sagittal", "coronal", "interleave-x", "interleave-y", "interleave-z", where the default is "axial", or use one of the following:

  - **--axial**, **-a**

    Interleaved axial images **\[This is the default\]**

  - **--sagittal**, **-s**

    Interleaved sagittal images

  - **--coronal**, **-c**

    Interleaved coronal images

  - **--interleave-x**, **-x**

    Interleaved along x axis

  - **--interleave-y**, **-y**

    Interleaved along y axis

  - **--interleave-z**, **-z**

    Interleaved along z axis **\[This is the default\]**

- **--spacing** *\<double\>*

  If non-zero, force slice spacing in the output image to given value. This is required when stacking single-slice images. **\[Default: 0\]**

## AUTHORS

Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R. Maurer, Daniel B. Russakoff, and Yaroslav Halchenko

## LICENSE

http://www.fsf.org/licensing/licenses/gpl.html

## BUGS

Report bugs at http://nitrc.org/projects/cmtk/

## ACKNOWLEDGMENTS

CMTK is developed with support from the NIAAA under Grant AA021697, National Consortium on Alcohol and Neurodevelopment in Adolescence (N-CANDA): Data Integration Component. From April 2009 through September 2011, CMTK development and maintenance was supported by the NIBIB under Grant EB008381.