Thursday, October 30, 2014

RE: [Avid-L2] BCC 8 is there any kind of garbage matte in the chroma key or if I use multifilter?

 

I got back the chroma keys done in AE by the graphics folks and they are less noisy but the edges are less detailed especially around the hair.  They look a bit more like an eroded spectramatte with a slightly softened edge.  The noisy dark blue jackets are cleaner which was the biggest offender.  When I said my key looked like garbage I should be kinder to BCC as I did like the hair line edges with a little matte cleanup better than the AE key but the noisy darks were just to,  well noisy.  Probably due to the lighting and the camera compression, I don't know what they shot on.  I'll see if I can send a test key sample to Mr. Dirk to see what he can come up with.

I will say it is awesome to email about a bone head key problem and have Dirk kick out a tutorial relating to the issue.  That is awesome support up there with AJA, Avid (Thanks in large part to Marianna), Tektronix and the old GVG folks.



---In avid-l2@yahoogroups.com, <bigfish@...> wrote :

Good to know the proper terminology.  On a switcher it was called forced key IIRC and inside the wipe came through or you could reverse it.  I keep hearing I just draw a garbage matte and I figured any rough shaped matte drawing was garbage.  Well to be honest my key looked like garbage any ways so I sent it to an AE compositor to clean up.  We'll see how they do.  They did see the same issues I was having so at least I've successfully spread the grief around.

Yes I could animatte but there were a ton of these so I wanted it all in one effect.  Better yet I sent it to graphics folks.


---In avid-l2@yahoogroups.com, <popix@...> wrote :

Animatte the foreground on top of the CK layer.

Too bad there's no Primatte or Keylight for Avid…

 

BTW, a garbage matte is the opposite of this, used to exclude things like set elements which don't cross the key edge.

 

Pete O

 

POP Pictures

Orlando

 

From: Avid-L2@yahoogroups.com [mailto:Avid-L2@yahoogroups.com]
Sent: Monday, October 27, 2014 5:11 PM
To: Avid L2
Subject: [Avid-L2] BCC 8 is there any kind of garbage matte in the chroma key or if I use multifilter?

 

 

Next to Fonts Chroma Keys are my favorite torture.  Oh well I'm trying to clean up some chroma keys using BCC 8.  I'm getting decent results with chroma key with multifilter adding matte cleanup to choke it a little bit.  Now the edges are okay but the shirt buttons and light blue, yea light blue, shirt are reflecting some of the green and slightly keying out.  If I was on a GVG switcher I'd use the forced key function and make a garbage oval wipe forcing the foreground through.  I tried multi filter make alpha thinking I'd be able to draw a shape on top of the existing alpha and fill the problem key area with solid white.  I can't seem to find the right combo to get this working.  Is this even possible in BCC 8 using multifilters?

 

John Moore
Barking Trout Productions
Studio City, CA
bigfish@...

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