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Green Screen and Monitor Problems
Hello,
I recently did a test project where I did a lot of green screen keying. I did this on my system at home. I then took the completed work to another system to be edited. I used Keylight.
What looked good at home looked horrible on the other system. The keys were all bad. In a few of them the person in front of the green screen was transparent. I attributed this to my monitors not being set up properly.
Is there a way to do this monitor setup so that I can at least have mine look as they should?
Thanks!
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7 Replies
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Dave,
I find it much more satiisfying to blame things that can’t defend themselves.
….. i am embarrassed…..
I will go to the site and check it out. Thanks for the tip, on the toot.
But I still think I need to set up miy monitors though. The keyed video look fine on my monitors and not so good on 2 brand new, calibrated, monitors.
I have done some more research into calibrating and it’s way more complicated than I thought it would be. There are things out there that make it easier but I am still looking for a way to so it cheap or free, but accurately.
Thanks
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I think, for the first time in my life, size is not a problem. My one monitor is a crt 21” and the second is a crt 19″. I do not have a client monitor yet but that will be a near future purchase.
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Have you tried running your mouse over the keyed image with the AE info panel open? That’ll tell you, numerically, what your RGBA values are and whether you have a clean key in those areas.
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Steve,
I’m not sure I would be able to decipher what the numbers meant and How I should use them. I have just ordered A new book on keying and I hope to learn a lot from it. Until then I am trying to get a handle on the whole keying process.
Thanks
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Hmm … well,
1. If a pixel is completely transparent, its alpha channel value is 0.
2. If it is completely opaque, the value is 255.
3. If partially transparent, the value is in between those values.The bulk of your talent should be opaque with an alpha value of 255.
The edges between your talent and the keyed background should be partially transparent, with alpha values between 0 and 255. This region is generally only a few pixels wide in the case of solid people and objects.
The background, keyed out, should have an alpha of 0. If there are areas that are not, you can mask around your talent with roughly drawn masks to cut out the “garbage” in the background.Does that help?
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What is keylight’s website?
-A.N.
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Wasn’t sure where to post this as I’m having a problem with keylight that may be related. I work at a school in which we have keylight and AE on dozens of different machines. We also have production monitors, CRTs and LCDs of varying quality, from Sony’s best HD production monitor on down the line. I heard several students complain about VERY different results from keyligh on different machines. Having worked with keylight and other keyers across different machines, platforms, and never having problems I assumed this was user error. Now that I’ve seen the projects, even moved to a different machine but same platform, version of AE and version of keylight I can tell you that Keylight is changing, particularly with regard to spill supression. I’ve posted on the Foundry forums and haven’t heard anything yet. Anyone else having this problem? Thanks.
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