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Enthusiast
Posts: 3
Registered: ‎10-11-2016
Message 1 of 6 (1,200 Views)

Edge problems in green screen keying

Hi how are you all,

 

I'am using sonyF55,  

 

I had a big problem when i shooting in green screen i can see pixelated edge and when i start kyeing, can any one help me in that,

 

thank you 

Expert
Posts: 234
Registered: ‎08-21-2013
Message 2 of 6 (1,191 Views)

Re: Edge problems in green screen keying

[ Edited ]

What codec and format did you use?

Guidance from posts on this board is that you will get best results using SStP SR-SQ 444 or Raw

www.nickgordonsmith.com
Enthusiast
Posts: 3
Registered: ‎10-11-2016
Message 3 of 6 (1,130 Views)

Re: Edge problems in green screen keying

We tried all of the setting. If i try s_log 3 where can i find the lut
Specialist
Posts: 20
Registered: ‎05-27-2016
Message 4 of 6 (1,116 Views)

Re: Edge problems in green screen keying

slog probably isnt' going to help you with a key. If you're shooting it for consistency with other things you've captured there's a case for it, but if it's just a talking head on a chroma screen don't use log. Before looking at your codec though start by questioning your lighting. A good codec helps a lot, but it can't fix bad lighting.

 

As for more specific camera settings, try the Standard 5 color profile and XAVC Class 480 as the codec for SxS. Your camera needs to be on the latest firmware to take advantage of Class 480. If you have a RAW recorder shoot in a RAW format instead of on to SxS.

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Expert
Posts: 58
Registered: ‎09-27-2013
Message 5 of 6 (1,105 Views)

Re: Edge problems in green screen keying

[ Edited ]

I had really wonderfull results using SR444 for green screen.

That kind of work is mainly about color sampling and 444 is just what you need.

Now if your footage has unfortunatly been done already in Slog XAVC, I suggest that you apply the LUT before doing the keying. Edges will naturaly be more precise and your problem may be solved.

JG Leynaud

www.jgleynaud.com

 

 

Enthusiast
Posts: 3
Registered: ‎10-11-2016
Message 6 of 6 (1,087 Views)

Re: Edge problems in green screen keying

Thank you guys a lot, i will try your advices and i will get back to you.
thanks too much for your time.

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