Keying problem

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Keying problem

Postby PianoArtist on 03/9/2016, 9:00 am

I'm looking for help on keying blue screen background. The background is actualy a clear sky, but the color is not quite blue, it's a little bit desaturated. In the shot, we see actor facing the camera, and there is a bunch of details of his hair. The problem is keying, but keeping those little hairs, without harsh edge. I'm sending a screenshot of that part in my attachment.

The Keylight (1.2) doesn't work so well. Is there other way of keying this background more efficiently?
Attachments
Capture.PNG
PianoArtist
 
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Re: Keying problem

Postby Grunt360360 on 03/9/2016, 11:31 am

try using color key, if that doest work and your really desperate try rotoscoping.
My youtube channel is http://www.youtube.com/user/SkiMaskBros101
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Re: Keying problem

Postby plae57 on 03/9/2016, 12:36 pm

Did you try to create one or more procedural mattes from one of the color channels? I copied your image into Photoshop and created a good matte off the blue channel. You can so the same in After Effects. Sometimes the best way to key is to not use one of the built in keyers.

If you are unsure what I am talking about there is a good tutorial here: https://www.youtube.com/watch?v=RcPyfaoEyd0

Optionally use a selective color effect to pump the blue in the sky before you use a keyer.
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Re: Keying problem

Postby PianoArtist on 03/9/2016, 6:33 pm

Thank You really much, this helped me a lot!

Have a nice day!
PianoArtist
 
Posts: 4
Joined: 11/12/2015, 5:14 am
System Specs: Build: Element x64 1.6.2 (480)

OS: Microsoft Windows 7 Ultimate 64-bit 6.1.7600

CPU: Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz
RAM: 8131MB

GPU Vendor: NVIDIA Corporation
GPU: GeForce GT 620/PCIe/SSE2
GPU Driver: 9.18.13.4725
GPU RAM: 1024MB
GPU Code: 0

Re: Keying problem

Postby ivanparas on 03/22/2016, 11:46 am

The Rotobrush sounds like a good solution to your problem. It works pretty well with fine/blurry elements that need to be rotoed. Make sure and look up a tutorial that goes into using the Refine Edge tool as it's what you'll need to roto the hair.
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