How do I achieve this in Prem pro 2

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Dave cross
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Joined: Nov 3 2007

Hi Guys, not sure how to even explain this let alone how to get the effect !!!

I have some footage of a classical singer that we filmed in the grounds of Tatton Park in Cheshire. We did around 7 passes of him miming to a nearby cd player and then dubbed the original track from his album in the warmth of the studio. The results we're fabulous so much so that it went on to become Septembers most requested video on Sky's Classic FM TV (not bad for just me and him and an XM2 !! ) What I would now like to do is cut around the figure of the singer so all you see is him walking and not what 's in the background. Then I would like to superimpose (probably the wrong word) him into another clip of film elsewhere.........

If I was trying to get this effect with a still I would just cut around the image and lay it wherever........but how on earth do you do it with video ? and with Prem pro 2

Regards,
baot0

Graham Risdon
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Joined: Dec 29 2004

In 2 words, very difficult!!

I'm no expert, and I'm sure there are better qualified people on the forum, but here's my 2p's worth anyway!

Most keying tools rely on everything that you want to key out (remove) having something in common. Chroma keying uses colour values and luma keys use brightness. Even then, backgrounds need to be lit very evenly to get a clean key. carefully With your background, I suspect it changes in every frame!

The technique you need is a travelling matte which basically involves drawing an outline around what you want to cut out, and then animating it as the area you want to cut out moves. Premiere has a simple tool called garbage matte (CS3 has a 16 point matte) and this may give you an idea of how it works.

Realistically, this probably needs to be done in After Effects (or Adobe's new CS3 tool Ultra which looks pretty impressive in the demo (my copy arrives in a day or two!)

Bottom line, I would try and reshoot using a proper Chroma Key background - Certainly quicker and probably cheaper in the long run.

Interested to read other's opinions

Neon Films
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Joined: Aug 23 2000

Hi there,

Graham is right. What you're wanting to do is virtually impossible - especially in Premiere. Even in After Effects it would very difficult and probably take forever. As Graham suggests you'd be better re-shooting with a background you can chroma-key out later.

Mark Smith

Leeds Media Services
Video Production in Leeds and Yorkshire

Dave R Smith
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Joined: May 10 2005

Hi baot0

See this link
http://www.aztecvideo.co.uk/music1.htm
scroll down to bottom right.
That was done a couple of years ago with a Canon XM2.

From memory I think the screen is 2.1m by 1.8m.
It's a lastolite flip out job.

I've only used it a few times and need some cash at the moment for audio gear so if you want to make me an offer for te Chroma screen, send me a Private message.
It comes with a zipped case - all as new - no marks or creases.

branny
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Joined: Nov 6 2001

A reshoot with green screen is definetely the best option. Many, many hours could be spent key framing the guy out of the current scene, only for it to look like a youtube playabout.

Do not follow, I may not lead. Do not lead . . . I may not follow.

Graham Risdon
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Joined: Dec 29 2004

I've got a lastolite pop out blue screen that I've used reasonably effectively. The problem with small backgrounds is that it restricts the subject's movement as you need to position them a fair distance from the blue screen to avoid spill and to allow a kicker light to provide some separation. This means they only have to move slightly and the camera moves off the background - OK for talking heads though, and they're very portable.

There's loads of info on chromakey about...

The other solution is the reflectmedia(?) system which puts a ring of LEDs around the lens and uses a reflective backdrop made from tiny glass bits. I've seen an impressive demo of this solution, has anyone used it for real?

Runaround Who
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Joined: Jul 3 2007

They had it on show at the IOV with a guy faking waterskiing and you could see the result on a monitor there. It looked cool but Keene seem to be selling it cheaper. Apparently you need to check that the model you buy is 2007 model - some changes apparently but 'I no nuttink'.

www.electrafilms.co.uk Watching life and filming the best bits ...

Christian Lett
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Joined: Apr 26 1999

I'd say this was 100% impossible in Premiere Pro. In After Effects you could rotoscope (animate masks) but for this to look even slightly good, you'd need to be a very talented rotoscoper, and have weeks at your disposal!

Talking of greenscreen music videos, I found this site , where you can download some greenscreen footage of Tori Amos. I'm piecing together a 15-second clip for my FX reel. Dispite being shot against greenscreen it's worth checking out to see just how bad greenscreens can be - the piano on the right requires manually masking because of the spill, and the ludicrous tracking markers make keying a major pain in the arse (essentially requiring frame-by-frame painting to remove the ones that she crosses in front of)! If you plan on reshooting your video against greenscreen you could learn some valuable lessons from this appalling footage!

C

Christian Lett After Effects and Maya Artist www.quarterlightpictures.com

Dave cross
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Joined: Nov 3 2007

Blimey, Its not going to happen is it..........thanks anyway guys

baot0

branny
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Joined: Nov 6 2001
Graham Risdon wrote:
The other solution is the reflectmedia(?) system which puts a ring of LEDs around the lens and uses a reflective backdrop made from tiny glass bits. I've seen an impressive demo of this solution, has anyone used it for real?

I bought one for a commercial shoot, but last minute changes provided alternative options.
I have done test shots and it really is brilliant. Swap from blue to green with adjustable intensity. No need to keylight the background as the beads do the all work for you.
I will be making a lot of use of this in a few upcoming interviews.

Do not follow, I may not lead. Do not lead . . . I may not follow.