DV Keying Questions at DVinfo.net

Tom McDougal · January 12th, 2007, 10:25 AM

Not sure where to put this question but here seems right...

I just completed our 1st full green screen production. (We practice serveal times on a small 5x7 key) Upon completion, We notice alot of noise on the talent. Do you think its because of say a material the talent was whereing? Do you think its because of the colors the talent was where (black)
I don't think its a lighting issue as we were underlit before (keying was very hard)

We are using Serious Magic for post production. This noise appears on the AVI outputted from the tape...

Anyhelp would be great.

Conor Ryan · January 12th, 2007, 11:50 AM

Do you have a framegrab or two to show?

Kevin Myhre · January 12th, 2007, 12:11 PM

Well in my opinion it would be the clothes they were whereing. If your green screen was underlit it would probably be closer to black. I've found that it is much harder to key with an under lit green screen than a well lit one as long as you can controll the spill.

James Huenergardt · January 15th, 2007, 04:19 PM

Well, I don't know how you could fix that type of thing in Serious Magic, but in After Effects, you could most likely fix it using various methods.

DV is difficult to key anyway.

I've gotten very good results with Keylight or dv Matt Pro from dvgarage.com

I'd have to see some footage to know what's going on.

Jim

January 12th, 2007, 10:25 AM	#1
Tom McDougal Regular Crew Join Date: Apr 2006 Location: Port Jefferson, New York Posts: 62	DV Keying Questions Not sure where to put this question but here seems right... I just completed our 1st full green screen production. (We practice serveal times on a small 5x7 key) Upon completion, We notice alot of noise on the talent. Do you think its because of say a material the talent was whereing? Do you think its because of the colors the talent was where (black) I don't think its a lighting issue as we were underlit before (keying was very hard) We are using Serious Magic for post production. This noise appears on the AVI outputted from the tape... Anyhelp would be great.

January 12th, 2007, 11:50 AM	#2
Conor Ryan Regular Crew Join Date: Oct 2004 Location: Dublin, Ireland Posts: 67	Do you have a framegrab or two to show?

January 12th, 2007, 12:11 PM	#3
Kevin Myhre Regular Crew Join Date: Nov 2006 Location: Rochester MN Posts: 68	Well in my opinion it would be the clothes they were whereing. If your green screen was underlit it would probably be closer to black. I've found that it is much harder to key with an under lit green screen than a well lit one as long as you can controll the spill.

January 15th, 2007, 04:19 PM	#4
James Huenergardt Major Player Join Date: Nov 2005 Location: Chehalis, WA Posts: 513	Well, I don't know how you could fix that type of thing in Serious Magic, but in After Effects, you could most likely fix it using various methods. DV is difficult to key anyway. I've gotten very good results with Keylight or dv Matt Pro from dvgarage.com I'd have to see some footage to know what's going on. Jim