Adobe Photoshop w/ Green Screen

[jonathanhou]

I have Adobe Photoshop 7.0. If I take a picture (.jpg), that has a background of a green screen, how do I substitute something else in for the green screen. What are the step by step proceedures to do so or where could I find a tutorial on this type of thing.

All help is greatly appreciated.

Thanks in advance!!!

[mtgentry]

Depends on how simple the photographed object is. If its a persons head with lots of fine hair it you probably need to go into the alpha channels to remove it.

Heres a tutorial:
http://graphicssoft.about.com/od/photoshop/l/blrbps_5bgirl.htm

I'm guessing its something more basic though? cant you just add a new layer behind it?

[tegraphix]

You could try the 'Extract' tool.
http://www.cyber-aspect.com/features/fa_065.htm
http://ps6.com/Tutorials/Extract/intro.html
http://www.adobeevangelists.com/pdfs/photoshop/tipsandtricks/Extract.pdf#search='photoshop%20extract%20tutorial'

[jonathanhou]

Thank you both. I greatly appreciate your time and help!