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Marius Staring edited this page May 11, 2020 · 5 revisions

elastix is copyrighted by "University Medical Center Utrecht and contributors".

The software is distributed as open source, by a license approved by the Open Source Initiative (OSI). Starting with elastix 4.8, the Apache 2.0 license is used. For versions prior and including 4.7, the new and simplified BSD license is used. You can find details on the copyright and license for specific versions of elastix below:

  • For versions of elastix from 4.8: click here
    This is an open-source Apache 2.0 license, approved by OSI. It allows unrestricted use, including use in commercial products.
  • For versions of elastix prior to 4.8: click here
    This is an open-source BSD license, approved by OSI. It allows unrestricted use, including use in commercial products.

Copyright Notice

Copyright University Medical Center Utrecht and contributors

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0.txt

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Historical note

elastix was initially developed under contract of the University Medical Center Utrecht, The Netherlands, by Stefan Klein and Marius Staring under supervision of Josien P.W. Pluim. It is currently maintained at the Leiden University Medical Center, The Netherlands, and at Erasmus Medical Center, Rotterdam, The Netherlands.

Third parties

  • Insight Toolkit. Copyright by the Insight Software Consortium, and distributed under the Apache 2.0 license. Several files throughout elastix are derived from the Insight Toolkit (ITK). In addition, the ITK is required by elastix for compilation of the source code.

  • Approximate Nearest Neighbor library. Copyright by the University of Maryland, and distributed under the GNU Lesser Public Licence. The files can be found in the subdirectory Components/Metrics/KNNGraphAlphaMutualInformation/KNN/ann_1.1. Please read the content of the subdirectory for details.

Contributions

We welcome contributions to elastix!

We have used Contributor License Agreements until our move to the Apache 2.0 license in conjunction with our move to GitHub. Since then any contributions to elastix will automatically fall under the Apache 2.0 license, saving you and us the burden of filling out CLAs. This is on the one hand covered by Section 5 of the Apache 2.0 license: 5. <snip> any Contribution intentionally submitted for inclusion <snip> shall be under the terms and conditions of this License. <snip> On the other hand this is made explicit by the GitHub Terms of Service. It simply means that you allow your contributions to be distributed under the Apache 2.0 license via elastix, and does not change your rights to use your own contributions for any other purpose, or your ownership.

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