Reading an OpenEXR image that uses halfs: https://github.com/hpd/aces-dev/blob/master/python/aces/filterImageWithCLF.py
Using OIIO w/ Python and numpy: http://comments.gmane.org/gmane.comp.lib.openimageio.devel/3159
OIIO Python tests: https://github.com/OpenImageIO/oiio/blob/master/src/python/python_tests
Edit conflict - other version:
[http://jesnault.fr/website/how-to-build-windows-images-libraries/ How to build windows images libraries – Esnault Jerome website]
Edit conflict - your version:
How to build windows images libraries – Esnault Jerome website
End of edit conflict