I have a clip where I have panned across a scene but there is a tower that comes into shot in front of a sea view. I have tried following this tut http://vimeo.com/groups/6188/videos/14229366 but he does not pan and I am stuck trying to get my mask to pan with the clip, could anybody point me in the right direction to mask out the tower.
As you have already tracked the footage, you can parent the tracking information to the mask and it should pretty much stick.
The basic idea being, that we need to key frame the mask (rotoscope) so as to be able to pan (on x,y axes else you would need to matchmove it with a 3d app like PFHoe, PFTrack)
Hope it helps!