Remove hard edge between foreground and green screen
by Graham Hutchins
on
Jun 3, 2009 at 3:37:51 am
Hi everybody,
I've been playing with this for a bit and can't seem to figure this one out.
I have a green screen shot that we shot on a beach volley ball court that I'm trying to incorporate into a desert background.
The issue I'm having is there is a hard line and a bit of a shadow where the sand meets the screen. I'd like to erode the matte to remove that hard line and also feather it a bit to facilitate placing it into the scene, all while keeping my foreground character looking good.
I have a clean plate of the screen to work with as well.
Here's still of the scene so far:
and here's my node tree:
Please note that this isn't the final background I intend to use, just a scratch image to test out the work flow.
Thank you in advance.
-Graham
OSX 10.5.6
AE CS4, Nuke 5.1.3
FC Studio 2
Octo 2.26GB MacPro, 6 GB RAM
Re: Remove hard edge between foreground and green screen by Peter O'Connell on Jun 3, 2009 at 4:24:01 am
HI, you could try plugging the bg image into the bg input of primatte. Also Give ibk a shot, you might get a better result. To erode your matte, unpremultiply the keyed image , apply one of the erode/dilate nodes to the alpha then premultiply.
Good Luck
Pete
