-
Need to lightly blur background in interview clip
Hi —
I’m using FCP 6.0.6 and I have some interview footage I’d like to effect a little.
I have a seated interviewee and framed diplomas on his wall about 5 feet behind him. His head is covering most of them, but part are sticking out on the left side. It could fly as is, but it’s enough to annoy me. I used garbage matte to make a quick matte and apply slight blur to the background of the image and it improves things. But garbage matte isn’t precise enough and I imagine the best kind of matte would be a dynamic one. On the FCP forum someone suggested using a track matte in Motion or Shake. I’ve done very little work in Motion and none in Shake but I have worked with AE. Unfortunately, I’m working with vers. 6.5, but it does have track mattes. Can anyone suggest a method for doing this?
Thanks. -
5 Replies
-
The very word (rotoscoping) conjures up the sensation of sitting in my office chair for days and nights. As you noted, it would really have to be worth a lot to do that, I’ll probably look into some other way.
Thanks for the reply, though.
-
Get CS3 or CS4- Mocha comes free with those.
Then use mocha to track the matte- it’s really easy, they got some great tutorials ( Mocha – Imagineer Systems) -
-
there’s a couple of tricks you can do to speed up roto if you don’t have mocha…
1. use multiple keys to create mattes
2. Motion tracks garbage mattes
AE ENHANCERS :: View topic – Rototracking palette for AE 6.5 SAVE PEOPLE41 https://usuarios.lycos.es/thehardmenpath/scripts/RotAE.jsx3. build your own procedural mattes
a) a tut
https://www.videocopilot.net/tutorial/advanced_sky_replacement/
b) your own custom procedural mattesadd channel-shift channel to footage
take alpha from Red
take red from Full Off
take green from Full Off
take blue from Full Offadd channel-Alpha levels
duplicate that layer (set as above the first layer) and set the new layer’s shift channel alpha from red to saturation and set layer mode to stencil alpha.
mess with alpha levels-input black and input white levels from both layers to isolate colors by the specific combination of chroma and sat. then alpha matte it as a precomp.
This works extremely well and even fixes hard keying, skin problems, roto, etc.
https://technicolorsoftware.hostzi.com/
-
Thanks for a lot of ideas. I’ll see what I can do with them.
Reply to this Discussion! Login or Sign Up