blue screening with Adobe Premiere

[Mods]

Is the blue screening function any good? I haven't had a proper chance to use it yet, which is annoying.

Is the quality good, and has anyone stepped up to try it?

Also ... how can I make a blue screen?


Mods

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Mark "Mods" Lovegrove

[Tom Servo]

I apprenticed at my dad's work, while they were making a promo video, and they put the actors in front of an actual "blue screen" (projection screen) and then superimpose the background later in editing. Another way i read about is using rear projection, i.e the actors act in front of the screen, and the background is projected on to it. I think Kubrick used it in the "Dawn of Man" sequence in 2001. I have used Premiere 6.0, its a marvelous program, but I haven't used the blue screen.

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[Dirty Cricket]

I'm quite familiar with Premire. I would say the blue screening featur is aliright. Although the acual "blue screen" opton in the transparency window is not so...great...i use the color key option to key out the background. But do make sure your background it well lite, and as evenly lit as possable. If you do that it ushally turns out pretty good. The rest is just setting the threshold and all those other slider bars to the right level. Just mess with them until you think it looks good.

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[Curtin-Parloe]

be careful of daylight and reflections. They make your subjects a bit blue, which makes it harder to bluescreen. Better still use green.

paul

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BAD EYE - Coming Soon www.curtin-parloe.co.uk/badeye Curtin Parloe 2001

[edenrepublik]

Just last month, I wanted to do the same thing. I found a large piece of drywall, went to the paint store, and gafe it a few coats, voila! Then I lit it as best I could, (using the 4 lights I had in the room) and shot a little bit using my 8mm camcorder (POS). When I ran it thru premiere (6.0) , it looked very good. When I tried it again, I absent mindedly had a corner in front of a window, making it look bad. But to answer your question, yes.

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[miker]

My bluescreen is normally accompanied by a symbolic stack dump ;-)

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[Ralph Snart]

If A Stack dump means that you have to shut your computer off with a chunck of pipe, welcome to the club.
Although I have no experience with ADOBE, I have learned a few things from VW3.
Plan your colors in advance.
If the foreground object is purple and you eyedroper that color purple to remove. The image will be transparent revealing the background through it based on the transparency setting and the amount of purple in the background.
Absolute chromatic foreground color with an outline of the predominate background color with no like color in the background works ok.

For instance:
A white ball with a black outilne surrounded by green trees as the FOREGROUND.
The BACKGROUND can be just about anything but white.


The color to remove from the FOREGROUND is white with respect to the tolerence settings and what ever is in the background should show through the removed white.

It also seems that if both the FOREGROUND and BACKGROUND clips are of equal legenth it avoids not only crashes but editing complications.
This in not the gospel according to Ralph, as my major problem is the catastrophic freeze. I can not even as a rule get an error ID #. It just freezes and I defrag, save and produce on a constant basis like a word document.
However when it works this is how it seems to.
I would brag if I knew just what I did properly or what circumstance smiled upon my endevers at the time, but I have produced five chroma layers from as many programs into a single exportable M-JPEG clip of about two minutes.
video background, video foreground, CGA, CGA, video.





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[anasazifilms]

Make sure you have LIT the bluescreen WELL!

If when you captures at has different tones of blue in a kind of "interlaced" fashion then you'll be rotoscoping (painting frame my frame).

After effects is the best program for Bluescreening. There are many filters you can apply to the movie to make the background look real.

I learnt aout Bluecrseening the hard ward. My master clip wasn't lit very well and i had to cut the scene from the movie becuase it was too long to do frame-by-frame.

To see a picture of what the scene was going to lookf like that look at the first page on our website at http://www.anasazifilms.co.uk/

Hope this helps.
PHILIP HAWKINS

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PHILIP HAWKINS

Anasazi Films LTD.
www.anasazifilms.co.uk

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