I'm looking to do this (Dropbox - Creepy Scarf Guy.mov) but with myself moving. As in, a video almost like a double exposure slightly visible with minimum opacity but on a moving shape, aka myself. I can do with an image, but not a person in a video.
I plan on recording against a plain white or black background, so I can mask it out easier later on.
Ideas? I can't find tutorials.
Double exposure to me says 2 layers and partial transparency. Just duplicate your layer, adjust opacity and experiment with blend modes.
If you want to remove the background the use color not white or black. It will be much easier to green screen something than try and remove a white or black background. Any local fabric store will have some green or blue (best color depends on the clothing and hair color of the actor) fabric that you can hang on a wall...