Virtual Green Screen

1. Michael Hackney
   Member

   
   I was watching a vid where a subject was shot on green screen. Then within Premiere Pro 2.0, the green screen color was changed to a different shade of green, to be better keyed. This being the case, wouldn't it be possible to shoot a subject in front of a normal white background, then turn that to the proper green (or blue) within the NLE and have a virtual green screen? Thanks :D

   Posted 5 years ago #

2. ;0)
   Member

   
   you can use any key color you want.
   I use white for photography alot.
   the good thing about the slime green color is nobody shows up wearing it (except maybee kawasaki motorcycle racers) forcing you to change backdrops after you've set up.
   
   ps the green/blue channel usually holds the least amount of color info, and is safer to remove (red will affect skintones)

   Posted 5 years ago #

3. compusolver
   Member

   
   The particular color of green used in greenscreens is used because it is not a natural color found in nature.
   
   Our photog poster can use Photoshop and selectively select areas with white or any other color to key. And you can too - if using a static image for a background. Videographers using a video background, at least, those of us trying to key with our NLE's, cannot select areas to key by color without resorting to matting, which complicates the process and since you'll likely have movement, you'll need a moving track matte which may grind your NLE to a near halt when combined with keying.
   
   If you key to white without limiting the keying area, the white of people's eyes and other areas will become transparent or partially so. There is some white in almost everything.
   
   Keying with a greenscreen is difficult enough (at least, if you want really good keys so your effect comes off well), so you may not want to make it even harder.

   Posted 5 years ago #

4. kindly4real
   Member

   
   I used white one time and it showed more shadows. Yes the shadows show up and that's a good thing, if you want then to show up, but any texture on you screen, such as wrinkles or quilting lines will create shadows.

   Posted 4 years ago #

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