This is some code related to the paper:

Daniel F Yu, J A Fessler.
Edge-preserving tomographic reconstruction with nonlocal regularization.
IEEE Trans. Med. Imag., 21(2):159-73, Feb. 2002.
http://dx.doi.org/10.1109/42.993134

Unfortunately the code is completely undocumented so I cannot support it.

The "code" directory has all the files; they are also in the .tar.gz file.