No, photoshopping is for photos and not possible on video. Well actually it is but unless you had the budget of multi-million dollar movie, its cost prohibitive.  Video is taken at 30 frames per second.  Each frame would have to be edited individually.  So a 10 second clip would be 300 frames (Multiplied by $20 per frame or more) at it would cost upward of $6000 in addition to taking at least a month to complete.