Here's the thing, I have 2 images, taken using the screenshot function in Halo 3. The camera stayed still, and I took 2 pictures, one with no person in the shot, one with a person in the shot. I would like to know how to mask out the differences between the 2 images. I can put the one with the person on top and the one without on bottom, then set the top one's blending mode to Difference and it shows me the differences, but I can't find anything to seperate that. How would I go about doing this? The reason I ask is because I want to have a video made in Halo 3, but I'm the only one who will be acting in it. There are several scenes where I need more than one person and it would be nice to be able to take a background shot with no people, then film, from the same location, me playing the parts, jsut from different spots, then overlay the videos together and have it look like multiple people even though it's only one. Anyways, can this be done? |