Another elastix-related problem: it requires libtiff.so.3, which is not included in many linux distributions anymore.
This can be easily solved with a symbolic link. Let's say we have libtiff.so.3.8.2 in /usr/lib/. Then, we would type in the command line:
sudo ln -s /usr/lib/libtiff.so.3.8.2 /usr/lib/libtiff.so.3
And that's it :-)
/Eugenio