Original RamenHDR sourcecode from sourceforge
I'm sure there are other people who have been looking for this. Searched high and low and finally found it here http://www.stasyan.com/devel/distfiles/
Original author is est77
From original LICENSE.txt
'''Ramen contains code from different open source projects with different licenses.
The code included in the extern directory has their respective licences and copyright notes.
The code inside the ramen subdirectory is mostly licensed under the CDDL 1.0, with some exceptions. Please see the individual source files for more info.'''