fit_affine_xform(1)

📦
version 3.3.1p2 · 7 versions
, in ubuntu stonking

✨ fit_affine_xform ✨ — like, the manual page bestie 💅

okay so this is the page for fit_affine_xform, and yeah it lives in manual section 1 of the Computational Morphology Toolkit (CMTK, the iconic one 🌈). Sit down, grab a strawberry 🍓, and let's get into it.

🌸 NAME 🌸

fit_affine_xform — Fit Single Affine Transformation to Concatenated List

🦋 SYNOPSIS 🦋

fit_affine_xform InputImage XformList

💖 DESCRIPTION 💖

So basically: this tool fits a linear affine transformation to a list of concatenated transformations — which may or may not be inverted, no judgment 💅. That's it. That's the whole vibe. It's giving "one transformation to rule them all."

✨ OPTIONS ✨

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

like, every CMTK tool has these, so no cap, they're universal bestie:

  • --help — writes the list of basic command line options to standard output. the little starter pack 📋
  • --help-all — writes the complete list of basic and advanced command line options to standard output. the full lore 🗂️
  • --wiki — writes the list of command line options to standard output in MediaWiki markup. for when you're wiki-pilled 📝
  • --man — writes man page source in nroff markup to standard output. manpage-ception 😭
  • --version — writes the toolkit version to standard output. slay, what version are we 🎀
  • --echo — writes the current command line to standard output. just so you know what you did ✨
  • --verbose-level <integer> — sets the verbosity level. dial it up, dial it down 🔉
  • --verbose, -v — increments verbosity level by 1. > heads up bestie: this one is deprecated; it's only supported for backward compatibility 🙈
  • --threads <integer> — sets the maximum number of parallel threads (for POSIX threads and OpenMP). parallelism era 👑

🎀 Input Options 🎀

  • --inversion-tolerance <double> — the numerical tolerance of B-spline inversion, in mm. smaller values = more accurate inversion, but they may increase the failure rate 😭. [Default: 1e-08]

🔥 Fitting Options 🔥

  • --rigid — fits a rigid transformation (rotation and translation only) using SVD. no scaling, no shearing, we stay rigid purist style 💅
  • --affine — fits a full affine transformation (rotation, translation, scales, shears) using pseudoinverse. the whole enchilada 🌯 [This is the default]

💜 Output Options 💜

  • --output <transformation-path>, -o <transformation-path> — the path for the output transformation. [Default: NONE] — so yeah, if you don't say where it goes, it goes nowhere, set it fr fr.

👑 AUTHORS 👑

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

⭐ LICENSE ⭐

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

💀 BUGS 💀

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

🌈 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. And from April 2009 through September 2011, CMTK development and maintenance was supported by the NIBIB under Grant EB008381. iconic funding moment 💖

and that's the whole page, bestie, you're basically a CMTK expert now 💅✨ this was CMTK 3.3.1p2, dated Jun 24 2026 — so like, remember where you read it, mwah 🎀🦋💜

📦 where this page comes from