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Problems with DVMatte Pro
I’m not just sure when this started but I’ve been having some real problems getting good green screen keys from DVMatte lately. I seem to be having difficulty getting good solid mattes from the software. I don’t remember having these probglems in the past, but the last two projects have been a bit shakey. I’m trying to key a person on a green screen from BetaSP. The tape was shot elsewhere, but the lighting ahd the light on the backing are fairly good. The backing usn’t the best. It looks to be a roll of paper behind the talking head. When I look at the footage on my vectorscope, however, the green portion of the video is actually pretty tight. The subject is well lit, wearing a medium brown sweater. She had a fair complextion and dark/black hair. There is a good backlight on her. I can’t for the life of my pu;; a solid key from this footage. The subjects face insists on keying through. She has fairly hot highlights on her face, but that’s it. No spill to speak of.
Parts of the video that shound not be keying, like the face and parts of the brown sweater, ane printing through like mad. I notices this problem with the last green screen job, but attribuated it to bad lighting and a not all that green background. It went into After Affects for compositing. This time I did the same. In after Affects, the DV Matte software works perfectly. This is a different DV Matte license running on a PC workstation within After Affects and not the same version that I an running in FCP.
I can’t find anything wrong that should be causing this, but DV Matte is usually a slam-dunk for greenscreen. I’m not sure just why it’s behaving like this.
The particulars:
Betacam SP captured at 8 bit uncompressed via AJA Io. I know that BetaSP isn’t the best choice, but I’ve had good results in the past with it. I’m running FCP V. 5.1.2. Mac OS is 10.4.8
Is there anyway the crossgrade could have messed this up? I believe that I started having this problem around that same time? Coincidence maybe? The setup in DV Matte isn’t an issue. Using the same workflow in both FCP and AE yeilds a cruddy key in FCP and a good key in AE. FCP rendering in YUV colorspace. AE is running in RGB colorspace.
I’ve trashed FCP preferences and reinstalled DV Matte with no difference.
This software is usually rock solid, but lately it just seems to fight me everytime. Any insights out there?
thanks
tom -
1 Reply
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Tom,
Send a note to the folks at DVgarage, they are sure to help.
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