2007-1-7
The question sent to me: I was wondering how you do a green screen with moving objects because when I was doing a chroma key, it worked ok, but it was fuzzy around and inside the object.
The answer I gave:
Essentially you're eliminating one color with the chroma-key. If that color exists inside the image you're saving this will happen.
Try this in Final Cut Pro:
Video Filters - Key - Color Smoothing - 4:1:1
then add
Video Filters - Key - Spill Suppressor - Green
then add
Video Filters - Key - Chroma Keyer
now go to Filters in your Viewer
turn off Spill Suppressor (you'll add this last) and Color Smoothing (you'll toggle this later to see if you need it)
now open your Chroma Keyer and tweak away (use only one or two clicks for Softening and don't use Enhance)
now go back to Filters in your Viewer
toggle Color Smoothing and see if it looks better or worse
turn on Spill Suppressor (it allows you to dial in the opposite color to the one you're keying out and helps get rid of any greenish or bluish edge) and see if that helps |