Not satisfied with Unity on Ubuntu 12

With Unity  on Ubuntu 12, the user interface changed so much that you drastically need to change your habits. Is it worth spending time for what looks like a commercial move toward tablets? For my own work, I started to use Mint, whose look and feel is closer to Ubuntu 10.

enhance contrast of a series of images

for f in *jpg ; do convert -auto-level $f ../$f;  done