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

# cmtk-stream\_pixels(1)

Stream pixel data from one or more images to Standard Output.

## NAME

stream\_pixels - Stream pixel data from one or more images to Standard Output.

## SYNOPSIS

**stream\_pixels** ImagePaths

## DESCRIPTION

This tool reads one or more images and writes all their pixels to standard output in binary form. Optionally, each image can be reoriented to a specified anatomical orientation and/or converted to a different data type. This is useful for piping image data through a pipeline, e.g., the Camino DTI toolkit.

## 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).

### Main Options

- **--reorient** *\<string\>*

  Reorient all images to anatomy-based standard orientation, e.g., RAS or LPS for axial. Default: no reorientation. **\[Default: NONE\]**

- **--change-endian**

  Change endianness. Default: native endianness.

- **--convert**

  Convert data to new scalar type. Default: no conversion. Supported values: "char", "byte", "short", "ushort", "int", "uint", "float", "double", or use one of the following:

  - **--char**

    8 bits, signed integer

  - **--byte**

    8 bits, unsigned integer

  - **--short**

    16 bits, signed integer

  - **--ushort**

    16 bits, unsigned integer

  - **--int**

    32 bits, signed integer

  - **--uint**

    32 bits, unsigned integer

  - **--float**

    32-bits, single-precision floating point

  - **--double**

    64 bits, double-precision floating point

## 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.