You are here: Re: Green Screen Keying - help « Video Production « DVD MP3 AVI MP4 players codecs conversion help
Re: Green Screen Keying - help

Posted by marks542004 on 11/13/06 22:28

adric22@yahoo.com wrote:
> I'm trying to get some video work done in front of a green screen. I
> have been very dis-satisfied with the price of the screens I've seen in
> photography shops, so I decided to build my own. The fabric cost me
> about $5 and I built the stand and all for under $50.
>
> Here's the trouble. I can't seem to get a perfect key. Most of the
> problem seems to stem from uneven lighting on the screen. The only way
> I can light it evenly is from the front of the screen but then my body
> casts a shadow on it. I could possibly light it from the back, but I
> don't have enough room as the room I'm shooting this in is only 10 feet
> square. I'd need another 10 foot to place a bright light behind the
> screen and get even lighting. If I put the light beside or below the
> screen, then the light is at an angle and doesn't evenly light the
> screen.
>
> Another problem I'm having. My camera is an older, cheaper digital-8
> camera. It does not have a manual white-balance setting. So what
> happens is when the camera shot is totally green, the auto-white
> balance kicks in and desaturates the green. It is still green, but not
> as much as it should be. Any ideas to prevent this (short of buying a
> new camera?)


If your video editor supports chroma-key you may be able to compensate
for the range of shades in the screen .

 

Navigation:

[Reply to this message]


Удаленная работа для программистов  •  Как заработать на Google AdSense  •  статьи на английском  •  England, UK  •  PHP MySQL CMS Apache Oscommerce  •  Online Business Knowledge Base  •  IT news, forums, messages
Home  •  Search  •  Site Map  •  Set as Homepage  •  Add to Favourites
Разработано в студии "Webous"