Comments

nihila wrote on 9/4/2008, 7:37 AM
Did you mean the Green Screen? You can use Sony Chroma Keyer from Videofx tab. Please note this works best only if you have a single contrasting color (green or blue) in the background. If you have a complex background with objects, your best bet is to use masking, which is available only in Vegas Pro.
Locust wrote on 9/4/2008, 12:48 PM
If you're talking about removing the background from a standard, plain-jane video of, say, people in a park, you're talking about hours and hours of painful rotoscoping, which is basically drawing a mask around your subjects for every single frame of action (and there can be thousands) in order to "cut out" the background.

Otherwise, shooting subjects against a blue or green screen in a controlled environment is really the only practical way of doing this, but it's not going to help if you've already shot the footage sans-screen.

http://en.wikipedia.org/wiki/Green_screen
manfeiz wrote on 9/4/2008, 2:36 PM
thank you guys.
autopilot wrote on 9/6/2008, 1:35 PM
If it's just a person talking, you could mask around him/her for the most part, and fade the edges.

If the background is one color, you may get lucky and use Chroma Key to take out that particular color, but it will take out that same color from the person.

If you have a moving, many colored background, well, that's a different story altogether.
James Hannan wrote on 10/31/2008, 12:38 AM
Hi Guys
if I videod in front of a white coloured wall how do I use Chromokey to take out the background and make it a different colour?
Is there a help file on this?
James
MSmart wrote on 10/31/2008, 12:24 PM
THIS thread has links to tutorials.

In the Chroma Keyer FX, use the eye dropper to select the wall color to change the keyer from green to your white.