Augmentor is free to use under the terms of the MIT License (MIT):

>Copyright (c) 2016 Marcus D. Bloice / Medical University of Graz
>
>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 ANY KIND, EXPRESS OR
>IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
>AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
>LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
>OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
>SOFTWARE.

Augmentor utilises Pillow (a fork of PIL) to provide its image operations:

>The Python Imaging Library (PIL) is
>
>    Copyright © 1997-2011 by Secret Labs AB
>    Copyright © 1995-2011 by Fredrik Lundh
>
>Pillow is the friendly PIL fork. It is
>
>    Copyright © 2010-2017 by Alex Clark and contributors
>
>Like PIL, Pillow is licensed under the open source PIL Software License:
>
>By obtaining, using, and/or copying this software and/or its associated 
>documentation, you agree that you have read, understood, and will comply with 
>the following terms and conditions:
>
>Permission to use, copy, modify, and distribute this software and its 
>associated documentation for any purpose and without fee is hereby granted, 
>provided that the above copyright notice appears in all copies, and that both 
>that copyright notice and this permission notice appear in supporting 
>documentation, and that the name of Secret Labs AB or the author not be used 
>in advertising or publicity pertaining to distribution of the software 
>without specific, written prior permission.
>
>SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 
>SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN 
>NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR ANY SPECIAL, 
>INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 
>LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR 
>OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 
>PERFORMANCE OF THIS SOFTWARE.

Augmentor uses python-future for Python 2/3 compatibility:

>Copyright (c) 2013-2016 Python Charmers Pty Ltd, Australia
>
>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 ANY KIND, EXPRESS OR
>IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
>AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
>LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
>OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
>THE SOFTWARE.

Augmentor uses tqdm to render progress bars in terminal mode:

> The MIT License (MIT)
> 
>Copyright (c) 2013 noamraph
>
>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 ANY KIND, EXPRESS OR
>IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
>FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
>COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
>IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
>CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.