1. A system configured to modify a set of time ordered digital images comprising a computer having memory and a program stored in said memory that is configured to: associate a first mask with a motion object in a first image at a first mask location; copy said first mask to create a second mask associated with a second image; move said second mask to a second mask location associated with said motion object in said second image; and, reshape said second mask to fit said motion object in said second image based on underlying image data in said second image.