TuFuse is a free program similar to Enfuse but expanded to provide better functionality. It is used for explosure blending (ie. extending the dynamic range of a scene WITHOUT having to go into HDR) and for focus blending.
I wrote about it, and Max Lyons, the author, answered some questions, here: http://www.autopano.net/forum/viewtopic.php?id=3319
This is the official website: http://www.tawbaware.com/tufuse.htm
Currently tufuse is only available for windows as an .exe, but it works under wine. It is a command-line program relying on external GUIs. Windows users can use PTgui or EnfuseGUI (pointing EnfuseGUI to tufuse.exe in options), however they dont work in wine.
Would it be possible to integrate tufuse into phatch? Users would point phatch to tufuse.exe, which would be called through wine.
The most important parameters to pass are:
output bit depth -a n
blending across the 180 degree boundary for panoramic images -w
sigma and beta (these could be sliders) -s n and -B n
Phatch would need to be able to read a directory containing many bracketed photos, and split those photos up into groups. If I shoot a scene using bracketing of -2EV, 0EV and +2EV then phatch would need to split the photos in the dir into groups of 3. This is what EnfuseGUI does.
Please check out tufuse - which I think works great, there are no ugly halos typical of hdr, the output is realistic - and tell me if you think this is a good idea!