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Black Lines Around Mask

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Tim Glaim
Black Lines Around Mask
on Jan 30, 2017 at 7:02:14 am

Hey, everyone.

I've been animating a mask in some videos I've been making and I've occasionally noticed some black lines around around the masks, but they usually go away after I adjust the masks, but now all the sudden I can't get rid of them. I've tried fiddling with the Mask Expansion and the feathering. Anybody know what's going on?



Thanks very much, guys.


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Dave LaRonde
Re: Black Lines Around Mask
on Jan 30, 2017 at 3:27:31 pm

Do the frame rates match?
What happens if you replace that mp4 with, say, a quicktime movie in the JPEG 200, PNG or Photo JPEG codecs?

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Tim Glaim
Re: Black Lines Around Mask
on Feb 1, 2017 at 5:48:36 am

They are the same frame rate. How do I try one of those other codecs? I tried exporting the sequence from Premiere Pro in the JPEG 2000 format, but when it came out of the Media Encoder, it was an MP4.

Thank you.


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Dan Powers
Re: Black Lines Around Mask
on Feb 2, 2017 at 10:10:23 pm

ANother thing I have noticed is that you will get strange mask artifact issues if you use a crossfade to fade them in or out. If you use an opacity keyframe it will act ok. Not sure if this is part of the same issue you are having or not.


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Tim Glaim
Re: Black Lines Around Mask
on Feb 3, 2017 at 12:33:39 am

No, that doesn't sound like what I'm doing. I'm not using any kind of cross fade. Thanks, anyway.


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