Comping a shot with corrected BG

[Jon Doughtie]

I know this isn’t too ahrd, but haven’t had to do it before, Can you help me get jump-started?

I have a lockdown shot at a front door, looking outside. The door is opened and the homeowner greets the guest.

As is often the case the shot is exposed for the guest and the (daytime) BG is blown out. But they also shot an empty lockdown correctly exposed for the exterior.

Is this gonna be old fashioned manual rotoscope? Or can I leverage some tools to simply/speed up processing these two elements into one correctly exposed video clip?

System:
Dell Precision T7600 (x2)
Win 7 64-bit
32GB RAM
Adobe CC 2017.1 (as of 8/2017)
256GB SSD system drive
4 internal media drives RAID 5
Typically cutting short form from UHD MP4, HD MP4, and HD P2 MXF.

[Jon Doughtie]

Light wrap isn’t bad – the subject was also under cover on the porch. I’ll play around with the rotobrush.

System:
Dell Precision T7600 (x2)
Win 7 64-bit
32GB RAM
Adobe CC 2017.1 (as of 8/2017)
256GB SSD system drive
4 internal media drives RAID 5
Typically cutting short form from UHD MP4, HD MP4, and HD P2 MXF.

[Jon Doughtie]

I am with you on that. I can actually get a look on the shot I am very happy with.

For 22 frames. Then the roto simply stops. And I am back to the over-exposed BG.

Why is it rendering only 22 frames? The whole shot is only three seconds.

I’m getting a little brain-fried trying to figure out what I have missed.

First rough, without spending any real time on it. For a three second shot, I can clean it up and live with it. But I do want all three seconds!

System:
Dell Precision T7600 (x2)
Win 7 64-bit
32GB RAM
Adobe CC 2017.1 (as of 8/2017)
256GB SSD system drive
4 internal media drives RAID 5
Typically cutting short form from UHD MP4, HD MP4, and HD P2 MXF.