Am I the only one getting a laugh out of this? I also tried it on myself and the result was funny.

With a little change to the algorithm, you can mark areas as "must not change" and "must change", basically manually marking areas as "high energy" and "low energy".

In all fairness, the read me says “Todo: face detection”

That's true, and I agree with the author!

It will be more complicated than it seems, though, because I just tried the GUI version from gabeiscoding above, and got the following result:

http://peterburk.free.fr/seamCarving/lighthouse_seamCarvingG...

Yeah, but the lighthouse looks great!