GNOME NIfTI Preview is GPL-2.0-or-later. It includes or derives from the following works.
backend/src/freesurfer_lut.tsv)The colours and names of the FreeSurfer labels (aseg, Desikan-Killiany and Destrieux cortical parcellations, wmparc) come from FreeSurferColorLUT.txt (version 1.105) of FreeSurfer, Laboratory for Computational Neuroimaging, Athinoula A. Martinos Center for Biomedical Imaging. They were taken from the table of MIQ (below); the rule that recognises a FreeSurfer parcellation is MIQ’s as well.
MIQ by Marco Duering, which inspired this project, under the MIT licence:
MIT License
Copyright (c) 2026 Marco Duering
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
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The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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The colours of intensities inferno and viridis are sampled from
matplotlib’s colormaps of the same names (CC0).
nifti-preview and nitty)The backend decodes JPEG 2000 and High-Throughput JPEG 2000 DICOM images with
OpenJPEG 2.5, compiled from the sources vendored
by the openjpeg-sys crate, under the 2-clause BSD licence:
Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
Copyright (c) 2002-2014, Professor Benoit Macq
Copyright (c) 2003-2014, Antonin Descampe
Copyright (c) 2003-2009, Francois-Olivier Devaux
Copyright (c) 2005, Herve Drolon, FreeImage Team
Copyright (c) 2002-2003, Yannick Verschueren
Copyright (c) 2001-2003, David Janssens
Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France
Copyright (c) 2012, CS Systemes d'Information, France
Copyright (c) 2021, Aous Naman
Copyright (c) 2021, Kakadu Software Pty Ltd, Australia
Copyright (c) 2021, The University of New South Wales, Australia
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
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documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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The JPEG, JPEG-LS, RLE and bzip2 decoders of the backend are written for this
project; the JPEG-LS decoder follows ITU-T T.87 as CharLS
implements it. The small codec streams of backend/src/formats/dicom/testdata/
were written for these tests by CharLS, OpenJPEG and libjpeg (through pyjpegls,
pylibjpeg-openjpeg and Pillow) from synthetic images (two of them, overflow.jls and
empty_component.jpg, are damaged copies the fuzzer made of those); the bzip2 stream of
backend/src/formats/testdata/ by the bzip2 tool, from a line of text.
nifti-preview and nitty)Both programs, as released (default features), also contain these Rust crates;
backend/Cargo.lock gives their versions, and tools/check-notices.sh (run by
CI) checks that this table names every crate compiled in. Where a crate offers a
choice of licences, the one named here is used.
| Crate | Licence used | Copyright |
|---|---|---|
flate2 |
MIT | Copyright (c) 2014-2026 Alex Crichton |
itoa |
MIT | David Tolnay (its licence file has no copyright line) |
libc |
MIT | Copyright (c) The Rust Project Developers |
libdeflate-sys |
Apache-2.0 | Adam Kewley; it compiles libdeflate (below) |
libdeflater |
Apache-2.0 | Adam Kewley |
memchr |
MIT | Copyright (c) 2015 Andrew Gallant |
memmap2 |
MIT | Copyright (c) 2020 Yevhenii Reizner; Copyright (c) 2015 Dan Burkert |
openjpeg-sys |
BSD-2-Clause | Kornel, Eduardo Pinho (the crate has no licence file); it compiles OpenJPEG (above), whose BSD-2-Clause text is quoted there |
serde_core |
MIT | Erick Tryzelaar, David Tolnay (its licence file has no copyright line) |
serde_json |
MIT | its authors (its licence file has no copyright line) |
zlib-rs |
Zlib | (C) 2024 Trifecta Tech Foundation |
zmij |
MIT | David Tolnay (its licence file has no copyright line) |
libdeflater and libdeflate-sys are under the Apache License 2.0 only, which
the Free Software Foundation considers compatible with version 3 of the GPL but
not with version 2. The programs built with them (the default features, as
released) are therefore distributed under the GPL version 3 or later, which
“GPL-2.0-or-later” allows. Built with --no-default-features, they contain
neither libdeflate nor OpenJPEG.
The crates under the MIT licence above give this text, after their copyright lines:
Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
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TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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libdeflate-sys)Copyright 2016 Eric Biggers
Copyright 2024 Google LLC
Permission is hereby granted, free of charge, to any person
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zlib-rs)(C) 2024 Trifecta Tech Foundation
This software is provided 'as-is', without any express or implied
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Permission is granted to anyone to use this software for any purpose,
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libdeflater, libdeflate-sys) Apache License
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