How to mask the background of a footage?
 

I have a clip that the person is walking on the road and I want to change the background of him to one of a digital juice loops.

How can I do that?


Please guide me.

Thanks
Matthew

Hopefully someone else has an easier suggestion but, without buying a motion tracking (i.e. rotoscoping) program such as Boris FX or Boris Red, the only way I know is to use bezier masking and a LOT of keyframing as the person walks down the road.

Yeah
 

Seems like After Effects might be the most tedious way. But mask each frame of the subject to remove the background... That could take quite a while depending on the length of the clips.