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Activity Forums Adobe After Effects Keying Green Out

  • Keying Green Out

    Posted by Patrick Pathmanathan on May 13, 2005 at 6:27 pm

    Hi Guys…..I need help with keying green out

    I have an interview scene that was shot with one of those easy to fold green screen as a background. I used two lights that were focusing on the subject and background together.

    Then I transferred some of the footage to AE 6.5 to substitute the color green with moving animated background. AE 6.5 comes with more than one keying effects, and I tried experimenting with all those effects. Only “Color Difference” key gave me all most 90% result after tweaking its settings for half hour. Then I added “spiller” effect to remove rest of the green spreads. So After spending half an hour, I was able to get 99% result. But I’m having trouble removing that 1% off from around the subject. Border is showing around the subject’s head. I can’t play around with the settings anymore, cuz it starts to eat up subject’s body.

    I also try the Oscar winning keylight effect plug-in that comes with AE6.5 package, it replaces green without any spills, But when do a preview……some areas in the footage starts to shake. Also I see one or two small black pieces comes out screen and starts to move like grass caught up in the hurricane.(Sorry I

    Dennis Leppell replied 20 years, 12 months ago 2 Members · 1 Reply
  • 1 Reply
  • Dennis Leppell

    May 13, 2005 at 6:54 pm

    it sounds like you may have a little bit of a green light reflecting off of the subjects siloette(?)/outline. try adjusting the hue a little bit before keying….that’s how i’ve always done it in avid. or, I could just be way off.

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