reorient(1)

✨ NAME ✨

reorient — bestie it literally just reorients your images, that's the whole vibe 💅

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🦋 SYNOPSIS 🦋

reorient [options] new-orientation infile outfile

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🌸 DESCRIPTION 🌸

Okay so picture this: your image is stored in one orientation and you need it in another. That's it, that's the job. reorient converts between image orientations — meaning it physically re-orders the pixel array — and it also adapts the stored anatomical orientation information so everything stays honest about which way is up. no cap, that's the whole thing. 🧚

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💖 OPTIONS 💖

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

• --help — dumps the list of basic command line options to standard output. short, sweet, helpful.
• --help-all — dumps the COMPLETE list, basic and advanced, to standard output. for when you want the whole lore. 🔥
• --wiki — writes the list of command line options to standard output in MediaWiki markup. yes bestie, wiki-formatted. 💅
• --man — writes man page source in 'nroff' markup to standard output. it's giving meta.
• --version — writes the toolkit version to standard output. ✨
• --echo — writes the current command line to standard output. so you can see exactly what you did.
• --verbose-level <integer> — sets the verbosity level. dial it up, dial it down, you're in control 🎀
• --verbose, -v — increments the verbosity level by 1. ⚠️ heads up: this one is deprecated, it's only still here for backward compatibility. it still works, but she's retired, respect her legacy 🙈
• --threads <integer> — sets the maximum number of parallel threads (for POSIX threads and OpenMP). go fast, but not too fast 🏃♀️

🌈 Main Options 🌈

• --input-orientation <string>, -i <string> — overrides the input orientation. it's a three-letter code, like 'RAS', 'LPI', etc. [Default: NONE]
• --output-orientation <string>, -o <string> — overrides the output orientation. the default is 'RAS', or the closest match supported by the output image file format. [Default: NONE]
• --output-space <string> — overrides the output coordinate space (like 'RAS', 'LAS', 'LPS'). 🚨 important: this does not affect the array order. the default is to write the image in the input image space. [Default: NONE]

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🫶 AUTHORS 🫶

Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R. Maurer, Daniel B. Russakoff, and Yaroslav Halchenko. absolute legends, every single one 👑

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📜 LICENSE 📜

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

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💀 BUGS 💀

Report bugs at http://nitrc.org/projects/cmtk/ — they want to hear from you, fr fr.

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🎀 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. 💜

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and that's the whole page bestie! this one's from CMTK 3.3.1p2, dated Jun 24 2026, page reorient(1) — slay, go reorient something 💅✨