-
Removing a person from a video
Hello all!
I wonder if anyone has any experience using a “clean” video (no actors) as a kind of a mask or key to remove what is different from another video, ie, the actors.
What I was expecting to do was to shoot the scene with no one on it and then shoot it with my actors and have AE be able to tell the difference without having to manually roto.
Am I barking up the wrong tree here?
THANKS!!
-
6 Replies
-
Did you shoot your actors over the background, or over a keyable background such as a green screen? I’d like to be able to help you, but I don’t know if you’ve provided enough information here. It sounds like you want to key them into another piece of footage, but unless you shot them on a keyable background you’re definitely barking up the wrong tree…
Please post more information (stills or example videos are always helpful) and I’ll do my best to help you. Also check out the tutorials at videocopilot.net and/or the Creative Cow AE podcast to see if one of them shows how to do something like what you’re trying to do.
Steve
-
Yeah, it was just a plain wall, not a chroma-keyable surface. We ran a demo of the setup and had some small success by using a Difference blending mode.
I was told by the person who asked me to give it a try that AE could take a still shot and compare it against a video and use that as though it were a key. This way, you would not necessarily have to shoot on greenscreen. So, I gave it a go with an empty room.
What I’m showing is a shot of a room, then the actor on screen, then the two blended with Difference.
Of course, we are planning on shooting with a much cleaner space, like a blank wall, but if it won’t work at all we’ll have to try something else.
Thanks!
-
I agree with Dave on all but the need to avoid DV footage. Using AE and the Keylight plugin you can get quite good results keying even DV footage. I’m like a broken record today about tutorials, but check out Andrew Kramer’s tutorials at videocopilot.net for some excellent green screen techniques that you can use with DV footage.
Steve
-
OK guys, thanks for the input. I’m not about to rotoscope the project!
We are getting a quote from a studio with a white cyclorama, but I was hoping to get an OK solution without shelling out big bucks. We don’t really need the big studio solution, but hey.
Again, thanks.
-
Gotcha. We were actually wanting on white, not to key in something else.
Thanks again.
-
Hahaha…yeah. We weren’t going to key off the white. White is going to be the final product. As long as it’s smooth and even white, the shoot will be a success.
Reply to this Discussion! Login or Sign Up