This package has multiple licenses (all of):
- BSD2CLAUSE (BSD 2-clause Simplified License)
- BSD3CLAUSE (BSD 3-clause New or Revised License)
- CC-BY-3.0 (Creative Commons Attribution 3.0)
- GPLv3+ (GNU General Public License version 3 (or later))
- MIT (MIT license / X11 license)
- SIFTGPU (SiftGPU non-commercial license)
