Yet another impossible key

Adobe After Effects

Yet another impossible key

Posted by Dumeyni Arnaud on October 19, 2009 at 9:52 am

Hi all,
I’ve been trying to key out this guy :
https://lpcfoubis.free.fr/preview/rush_itw.mov

Source is DV sd… I couldn’t work on the original capture so I had them to transfer me the rush via the ProRes codec ( QT animation wasn’t possible, slow servers and conections )

I’m very unsastified with the results as you can see below.

https://lpcfoubis.free.fr/preview/final_sample.mov

I made 3 keys ( clothes, head left and right )
I think I tried everything, deartificating and denoising helped a lot but its still not enough… Every techniques or keyers I used destroyed the small amount of hair he had left.

Is there more I can do ?

Marcello Mazzilli replied 16 years, 7 months ago 6 Members · 9 Replies
9 Replies

Marcello Mazzilli
October 19, 2009 at 11:43 am

Are you using any plugin. I found that Ultimatte is very good.
M

siRoma di Marcello Mazzilli
Corporate video productions in Italy
http://www.siroma.com
Dumeyni Arnaud
October 19, 2009 at 12:17 pm

Hi Marcello

I used keylight and Primatte, never tried Ultimatte.
Anthony Marzilli
October 19, 2009 at 2:12 pm

Hey Marcello,
I just got to quickly say…. nice last name. Don’t see too many close to this.
Marcello Mazzilli
October 19, 2009 at 2:28 pm

ahahah….. Here in Italy is more common I guess

siRoma di Marcello Mazzilli
Corporate video productions in Italy
http://www.siroma.com
Christopher Wright
October 19, 2009 at 6:31 pm

I have actually had great success with Boris Continuum’s Chroma Key plug-in.
Especially with the blue you are trying to key out.

Dual 2.5 G5, IO, Kona LH, IO, Medea Raid, UL4D, NVidia 6800, 4Gig RAM
Nehalem Octocore 12 GB Ram, Nvidia card, MBP, MXO, MXO2 mini, Windows Vista Adobe Studio CS4, Vegas 9.0, Lightwave 9.6, Sound Forge 9, Acid Pro 7, Continuum 6, Boris Red 4, Combustion 2008, Sapphire Effects
Alan Okey
October 19, 2009 at 6:52 pm

Your source footage is terrible, therefore the results are guaranteed to be disappointing. If a good key was important to the client, they should have shot the talent against a proper green screen (not blue) using a proper format (not DV). I’m frankly surprised that your key looks as good as it does given the source material. Nice work.
Chris Wright
October 19, 2009 at 11:35 pm

I couldn’t truly test a key on your sample because it’s only 500 pixels, but I do have a few suggestions.

()do you have primatte 4.0 or later?

()use more core garbage mattes that way you can use fine tuning button without fear of damage

()rely less on strinking mattes, and more on inward defocus. strinking directly deletes detail.

https://technicolorsoftware.hostzi.com/
Dumeyni Arnaud
October 20, 2009 at 8:42 am

Thanks for the positive feedback 🙂

This interview was important and as Alan said, it looked like they didn’t cared about it. But since I wasn’t involved in the shooting I couldn’t tell them they were doing it wrong, is it always like that ?

Nice link Dave, I heard about the 4-2-0 color but now I understand why it looks horrible even in HDV.

Downloaded demo of chromakey from boris, will try.

I’ve been playing with Primatte and garbage mattes with the head, the inward defocus helps, but I got a weird dark green color on his hair, pic related :

Looking at the source footage his hair is already a little green, so maybe it just a color correction problem and not spill.

Source material in higher res : https://lpcfoubis.free.fr/preview/sample_itw.zip
Marcello Mazzilli
October 20, 2009 at 8:51 am

I really suggest Ultimatte.. should give it a try

siRoma di Marcello Mazzilli
Corporate video productions in Italy
http://www.siroma.com

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