CONTENTS

  Public Domain Notice
  Exceptions (for bundled code)
  Copyright F.A.Q.


===============================================================================
                             PUBLIC DOMAIN NOTICE
                        National Institutes of Health

With the exception of certain third-party files, including those
summarized below, this software is a "United States Government Work"
under the terms of the United States Copyright Act. It was written as
part of the authors' official duties as United States Government
employees and thus cannot be copyrighted. This software is freely
available to the public for use. The National Institute of Mental
Health (NIMH) and the U.S. Government have not placed any restriction
on its use or reproduction.

Although all reasonable efforts have been taken to ensure the accuracy
and reliability of the software and data, the NIMH and the
U.S. Government do not and cannot warrant the performance or results
that may be obtained by using this software or data. The NIMH and the
U.S. Government disclaim all warranties, express or implied, including
warranties of performance, merchantability or fitness for any
particular purpose or that the use of software and data will not
infringe any patent, copyright, trademark, or other proprietary
rights. NIMH and the U.S. Government will not be liable for any
losses, claims, demands, expenses, or damages arising from, out of or
in connection with the software, data, or use thereof.

Please provide appropriate attribution and cite the authors in any work 
or product based on this material. See here for details:
  https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/published/citations.html


===============================================================================
                                  EXCEPTIONS

Location: Major portions of this software are copyrighted by the
          Medical College of Wisconsin
Authors:  Robert W. Cox, et al. 
License:  Creative Commons Attribution License (CC BY 4.0)
          [doc/README/README.copyright and top of files]

Location: src/coxplot/
Authors:  Medical College of Wisconsin
License:  Creative Commons Attribution License (CC BY 4.0)
          [src/coxplot/coxplot.h]

Location: much of src/crorden/dcm2niix_console/
Authors:  Chris Rorden
License:  Permissive 
          [https://github.com/rordenlab/dcm2niix/blob/master/license.txt]

Location: src/crorden/dcm2niix_console/charls/
Authors:  Jan de Vaan
License:  Permissive [src/crorden/charls/License.txt]

Location: src/crorden/dcm2niix_console/miniz.c
Authors:  Rich Geldreich
License:  Permissive (unlicense) [top of file]

Location: src/crorden/dcm2niix_console/nifti1_io_core.cpp
Authors:  Robert W. Cox (NIH), Chris Rorden
License:  Permissive [top of file]

Location: src/crorden/dcm2niix_console/nifti1_io_core.cpp
Authors:  Chris Rorden, Benjamin Irving
License:  Permissive [top of file]

Location: src/crorden/dcm2niix_console/ujpeg.cpp
Authors:  Martin J. Fiedler
License:  MIT [top of file]

Location: src/crorden/dcm2niix_console/base64.{cpp,h}
Authors:  Jouni Malinen
License:  BSD [top of file]

Location: src/crorden/dcm2niix_console/cJSON.{cpp,h}
Authors:  Dave Gamble and cJSON contributors
License:  Permissive [top of file]

Location: src/crorden/dcm2niix_console/nii_foreign.cpp
Authors:  Chris Rorden
License:  BSD [top of file]

Location: src/crorden/dcm2niix_console/ucm.cmake
Authors:  Viktor Kirilov
License:  MIT [top of file]

Location: src/dlcompat/
Authors:  Apple Computer, Inc.
License:  Apple Public Source License [src/dlcompat/APPLE_LICENSE]

Location: src/eispack/
Authors:  Argonne National Laboratory
License:  Free [https://www.netlib.org/misc/faq.html]

Location: src/f2c/
Authors:  Bell Laboratories
License:  Free [https://www.netlib.org/misc/faq.html]

Location: src/f2cdir/
Authors:  AT&T Bell Laboratories, Bellcore
License:  Free [src/f2cdir/gram.head]

Location: much of src/gifti/LICENSE
Authors:  Richard Reynolds (NIH)
License:  Free [src/gifti/LICENSE]

Location: src/gifti/cmake/{GIFTICPackConfig,gifti_common}.cmake
Authors:  Insight Software Consortium
License:  Apache 2.0 [top of file]

Location: much of src/jpeg-6b/
Authors:  Tom Lane, Philip Gladstone, Jim Boucher, Lee Crocker, Julian
          Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Guido
          Vollbeding, Ge' Weijers, and other members of the
          Independent JPEG Group
License:  Free [src/jpeg-6b/README]

Location: much of src/mpeg_encodedir/
Authors:  The Regents of the University of California
License:  Permissive [src/mpeg_encodedir/COPYRIGHT]

Location: src/mpeg_encodedir/{jrevdct,mfwddct}.c
Authors:  Thomas G. Lane and Independent JPEG Group
License:  Permissive [top of file]

Location: much of src/nifti
Authors:  NIFTI Data Format Working Group and volunteers
License:  Free [src/nifti/LICENSE]

Location: src/nifti/cmake/nifti_common.cmake
Authors:  Insight Software Consortium
License:  Apache 2.0 [top of file]

Location: part of src/niml/niml_md5.c
Authors:  RSA Data Security, Inc.
License:  Permissive [top of file]

Location: src/pkundu/meica.libs/nibabel/
Authors:  Matthew Brett, Michael Hanke, Stephan Gerhard
License:  MIT [src/pkundu/meica.libs/nibabel/info.py]

Location: src/qhulldir/ and parts of src/SUMA/ using Qhull
Authors:  The National Science and Technology Research Center for
          Computation and Visualization of Geometric Structures (The
          Geometry Center), University of Minnesota
License:  Permissive [src/qhulldir/COPYING.txt]

Location: part of src/rickr/l_mcw_glob.c
Authors:  Guido van Rossum (Regents of the University of California)
License:  Permissive [top of file]

Location: part of src/rickr/l_mcw_glob.c
Authors:  Medical College of Wisconsin 
License:  Creative Commons Attribution License (CC BY 4.0) [top of file]

Location: part of src/R_scripts/3dPFM.R
Authors:  Muhammad Salman Asif (Georgia Tech)
License:  Permissive (academic, non-commercial, not-for-profit purposes)
          [top of file]

Location: SVM-Light functionality in src/svm/
Authors:  Thorsten Joachims
License:  Free for non-commercial use (contact author prior to
          redistribution) [src/svm/3dsvm.c]

Location: parts of src/SUMA using Open Motif
Authors:  Integrated Computer Systems (ICS) Inc.
License:  The Open Group Public License  [src/SUMA/SUMA_help.c]

Location: src/SUMA/MarchingCubes/ and src/SUMA/SUMA_IsoSurface{.c,.h,Func.c}
Authors:  Thomas Lewiner
License:  Permission from author 
          [src/SUMA/SUMA_help.c,src/SUMA/MarchingCubes/README]

Location: src/SUMA/GLUT/
Authors:  Mark. J. Kilgard
License:  Freely distributable without licensing fees [src/SUMA/GLUT/NOTICE]

Location: src/SUMA/GLw_local/GL/
Authors:  Silicon Graphics, Inc.
License:  Permissive [top of each file]

Location: src/SUMA/PLY/
Authors:  Greg Turk (The Board of Trustees of The Leland Stanford Junior 
          University; Georgia Institute of Technology)
License:  Permissive [top of each file]

Location: part of src/SUMA/SUMA_display.c
Authors:  Dan Heller and Paula Ferguson (O'Reilly & Associates, Inc.)
License:  Freely distributable without licensing fees [top of file]

Location: part of src/SUMA/SUMA_display.c
Authors:  Mark J Kilgard
License:  Freely distributable without licensing fees [top of file]

Location: src/SUMA/SUMA_{glxdino,paperplane,pixmap2eps,trackball}.c
Authors:  Mark J Kilgard
License:  Freely distributable without licensing fees [top of file]

Location: part of src/SUMA/SUMA_MiscFunc.c
Authors:  Paul Bourke
License:  Permissive for personal use; permission must be sought for any 
          other use [src/SUMA/SUMA_help.c]

Location: part of src/SUMA_Surface_IO.c
Authors:  Greg Turk (The Board of Trustees of The Leland Stanford Junior 
          University)
License:  Permissive [top of each file]

Location: parts of src/SUMA/SUMA_{MiscFunc.c,Macros.h}
Authors:  Paul Embree and Bruce Kimble (O'Reilly & Associates)
License:  Permissive [src/SUMA/SUMA_help.c]

Location: parts of src/SUMA/ using SimpEnvelopes
Authors:  Jonathan Cohen and Amitabh Varshney (University of North 
          Carolina at Chapel Hill)
License:  Permissive for educational, research and non-profit purposes 
          [src/SUMA/SUMA_help.c]

Location: parts of src/SUMA/ using UTHASH 
Authors:  Troy D. Hanson
License:  Permissive [src/SUMA/SUMA_help.c]

Location: parts of src/SUMA/ using 'The C clustering library'
Authors:  Michiel Jan Laurens de Hoon (Laboratory of DNA Information 
          Analysis, Human Genome Center, Institute of Medical Science, 
          University of Tokyo)
License:  Permissive [src/SUMA/SUMA_help.c]

Location: src/suma_algorithms.c
Authors:  Kyle Loudon
License:  Permissive (contact O'Reilly & Associates to include in any other
          book, publication or educational product) [src/SUMA/SUMA_help.c]

Location: src/mri_dicom_hdr.c 
Authors:  Stephen M. Moore (Washington University); Radiological Society 
          of North America
License:  Permissive [top of file]

Location: src/{fftn,fftn_OMP}.c 
Authors:  MJ Olesen (Queen's University at Kingston)
License:  Free [top of file]

Location: src/Ifile.c
Authors:  Guido van Rossum (The Regents of the University of California)
License:  Permissive [top of file]

Location: src/mcw_glob.{c,h}
Authors:  Guido van Rossum (The Regents of the University of California)
License:  Permissive [top of file]

Location: src/html/arimo*.woff2
Authors:  The Arimo Project Authors
License:  SIL Open Font License v1.1 [src/html/LICENSE_OFL_arimo.txt]

Location: src/html/cousine*.woff2
Authors:  The Cousine Project Authors
License:  SIL Open Font License v1.1 [src/html/LICENSE_OFL_cousine.txt]

Location: src/html/FiraCode*.woff2
Authors:  The Fira Code Project Authors
License:  SIL Open Font License v1.1 [src/html/LICENSE_OFL_firacode.txt]

Location: src/ktaub.c
Authors:  David Simcha 
License:  Boost Software License [top of file]

Location: src/LiteClue.c
Authors:  Gary Aviv (Computer Generation, Inc.)
License:  Permissive [top of file]

Location: src/mri_drawing.c
Authors:  Jef Poskanzer, John Walker
License:  Permissive [top of file]

Location: part of src/plug_lsqfit.c
Authors:  Nicholas Sidiropoulos (University of Maryland at College Park)
License:  Permissive [top of file]

Location: svdlib.c
Authors:  University of Tennessee Research Foundation
License:  Permissive [top of file]

Location: src/thd_md5.c
Authors:  RSA Data Security, Inc.
License:  Permissive [top of file]

Location: part of src/to3d.c
Authors:  Guido van Rossum (The Regents of the University of California)
License:  Permissive [top of file]

Location: src/whirlgif.c
Authors:  Kevin Kadow, Mark Podlipec
License:  Permissive [top of file]

Location: src/remez-exchange/remez.c
Authors:  Jake Janovetz
License:  MIT license [src/remez-exchange/LICENSE]

Location: src/zgaussian/ziggurat.{c,h}
Authors:  John Burkardt
License:  MIT license [top of file]

Location: src/SUMA/gts/
Authors:  Stéphane Popinet, et al.
License:  GNU Library General Public License (LGPLv2) [src/SUMA/gts/COPYING]

Location: src/XmHTML/Makefile
Authors:  Ripley Software Development
License:  GNU Library General Public License (LGPLv2) [src/XmHTML/Makefile]

Location: src/gifsicle/
Authors:  Eddie Kohler (and Anne Dudfield, David Hedbor, Emil Mikulic,
          Hans Dinsen-Hansen)
License:  GNU GPL 2.0 or later [src/gifsicle/README]

Location: src/jpeg-6b/lt{config,main.sh}
Authors:  Gordon Matzigkeit
License:  GNU GPL 2.0 or later [top of file]

Location: src/jpeg-6b/config.sub
Authors:  Free Software Foundation, Inc.
License:  GNU GPL 2.0 or later [top of file]

Location: src/jpeg-6b/config.guess
Authors:  Per Bothner
License:  GNU GPL 2.0 or later [top of file]

Location: src/jpeg-6b/ansi2knr.c
Authors:  Richard M. Stallman
License:  Ghostscript GPL [top of file]

Location: src/jzosky/RetroTS.py
Authors:  Joshua Zosky
License:  GNU GPL 3.0 or later [top of file]

Location: src/mpegtoppm_dir
Authors:  Aaron Holtzman, Michel Lespinasse, et al.
License:  GNU GPL 2.0 [src/mpegtoppm_dir/COPYING]

Location: part of src/niml/niml_md5.c
Authors:  Christophe Devine
License:  GNU GPL 2.0 or later [top of file]

Location: src/3DEdge/ and parts of src/SUMA/ using 3DEdge 
Authors:  Gregoire Malandain
License:  GNU GPL 3.0 [src/3DEdge/gpl-3.0.txt]

Location: much of src/svm/
Authors:  Stephen LaConte
License:  GNU GPL 3.0 or later [src/svm/3dsvm.c]

Location: src/SUMA/SUMA_{coarsen.c,gts.c,gts.h}
Authors:  Jakub Otwinowski
License:  GNU GPL 2.0 [top of file]

Location: src/{plug_,3d}retroicor.c 
Authors:  Fred Tam (Sunnybrook & Women's College Health Sciences Centre, 
          Toronto, Canada)
License:  GNU GPL 2.0 [top of file]

Location: src/retroicor.c 
Authors:  Fred Tam (Sunnybrook & Women's College Health Sciences Centre, 
          Toronto, Canada)
License:  GNU GPL 2.0 [top of file]

Location: src/balloon.c 
Authors:  Matthew Belmonte
License:  GNU GPL 2.0 or later [top of file]

Location: src/plug_{permtest,threshold}.c 
Authors:  Matthew Belmonte
License:  GNU GPL 2.0 or later [top of file]

===============================================================================
                              COPYRIGHT F.A.Q.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Q. Who are the primary developers of the AFNI software package?

A. AFNI was started by Robert W. Cox at the Medical College of
   Wisconsin in 1994. Today, the primary developers of AFNI are the
   members of the NIMH's Scientific and Statistical Computing Core
   (SSCC), though many members of the broader neuroimaging community have
   also made (and continue to make) valuable contributions.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Q. I am not a member of the NIMH's SSCC. Can I contribute to the AFNI
   source code?  What kind of licensing will apply to my contribution?

A. Yes, many people have contributed to AFNI over the years!  You can
   make pull requests on the AFNI GitHub page
   (https://github.com/afni/afni), as well as raise Issues there. It
   is often useful to be in contact with the primary software
   developers (members of the NIMH's Scientific and Statistical
   Computing Core (SSCC)) early on in the process.

   US Government employees' work will automatically be in the Public
   Domain.  Other contributions may have different licensing, but note
   that this is an open source, publicly available community resource,
   and the intention is to have it remain so.  Any 3rd party
   contributions should have appropriate licensing noted.
   Contributions without explicit licensing will be assumed to be
   entered into the public domain.  To make contributions with any
   explicit licensing, please contact the SSCC as early as possible.

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Q. So, what _is_ the distribution license?

A. It can be summarized as follows: 

     Primarily Public Domain (U.S. Government Work) with substantial
     portions licensed under CC BY 4.0, as well as third-party
     dependencies under MIT, BSD, Apache 2.0, GPL v2/v3, and
     miscellaneous permissive/open-source licenses; see included
     notices for exceptions and restrictions.  Users may freely use
     and redistribute the software consistent with the applicable
     component licenses; attribution to the AFNI authors and other
     third-party contributors should be provided where required and is
     strongly requested for all uses.

   Since 2001, the primary active development has been in the public
   domain, as part of U.S. Government work.  For example, the `afnipy`
   Python module is entirely within the public domain.

   On May 12, 2026, an important update to license information in the
   AFNI codebase occurred, relating to code developed between
   1994-2000.  The Medical College of Wisconsin granted NIH a Creative
   Commons Attribution License (CC BY 4.0) for all of the code under
   its copyright (typically referred to as the "major portions of this
   software" that were developed from 1994-2000 at MCW), which had
   previously been distributed with a GPL 2.0 license.  A copy of the
   letter reflecting this update is stored here:
   doc/license_history/MCW_AFNI_license_update_2026.pdf.  In brief,
   the CC BY 4.0 allows for sharing and redistribution of material, as
   well as adapting it, under the terms of giving appropriate credit
   and indicating if any changes were made (see
   https://creativecommons.org/licenses/by/4.0/ for details).

   And as outlined above, third-party components of the codebase also
   contain specific licenses, such as GPL 2.0, MIT, Apache 2.0, BSD,
   Apple Public Source, and various free/permissive licensing
   descriptions; some very small subsets contain "contact the author
   before redistribution" notices.  Please review the relevant license
   for distribution terms and conditions or directly contact the
   contributing author for more information, as necessary.

