RooUnfold is a framework for unfolding (AKA "deconvolution" or "unsmearing"). It currently implements several methods: iterative (Bayes), singular value decomposition (SVD), unregularised matrix inversion, bin-by-bin (simple correction factors), and an interface to ROOT's TUnfold. It can be used from the ROOT prompt, or linked against the ROOT libraries. RooUnfold requires ROOT 4 or later.
For the latest version and documentation, see here
http://hepunx.rl.ac.uk/~adye/software/unfold/RooUnfold.html
RooUnfold was written by Tim Adye, Kerstin Tackmann, and Fergus Wilson.
Use GNU make. Just type
make
to build the RooUnfold shared library.
RooUnfoldExample.cxx makes a simple test of RooUnfold.
% root root [0] .L examples/RooUnfoldExample.cxx root [1] RooUnfoldExample()
See the web page for more examples and documentation.