Greenkeying with HD110 / 250 ? at DVinfo.net

Claude Mangold · July 9th, 2007, 06:37 PM

Has anyone tried it ? How is the result ? Which keying software did you then use ? Any tips ? Thanks !

Eric Darling · July 9th, 2007, 08:34 PM

Yes, I've done it many times now with the HD100, but I recommend digitizing to ProRes or DVCPRO 50/100 for keying jobs. You can check out a few spots I did earlier this year for a local grade school.
http://www.ethreemedia.com/bss

The footage in these compressed clips was digitized as DVCPRO 100, and then keyed in After Effects using Keylight. I'd probably do this job in SD now, using my Kona LH to downconvert to ProRes 422. It would save a ton of space on a larger job, and it's probably a lot faster to render. I'd also consider keying right inside FCP now, using the Boris Chroma Keyer and the 422 antialiasing filter.

The old thread about those spots can be seen here:
http://www.dvinfo.net/conf/showthread.php?t=85526

Paolo Ciccone · July 10th, 2007, 10:55 AM

Convert the HDV footage to a better codec, I use SheerVideo (http://www.bitjazz.com), and load it in AfterEffects Pro. Use Keylight and do final color correction with Color Finesse and you'll get very nice results.

Matthew Rogers · July 10th, 2007, 11:22 AM

Quote:

Originally Posted by Claude Mangold

Has anyone tried it ? How is the result ? Which keying software did you then use ? Any tips ? Thanks !

If you goto www.petros.com you can see some TV spots I did with a 110U in which I bluescreened some food items. Of course, doing a person would be much hard consider you would have to key hair. Make sure you convert the HDV into something like Sheer, or another codec that supports 4:2:2. The best program I've used for keying is AfterEffects with the Primatte plugin. Keylight does a pretty good job, but if you have a key that's not perfectly lit (or having to support objects like I did) it will be harder with keylight.

Matthew

Claude Mangold · July 11th, 2007, 11:09 AM

many thanks for this info. this is a wonderful site !!!

does this mean that we should directly capture via the 251's HD-SDI to a macpro with a HD-SDI card ? rather than putting the footage on tape and capturing it later ?
does this mean that we can't use JVC's HDD ?
also, we were thinking of getting a blackmagic multibridge eclipse -
but is an internal HD-SDI card better in this case ?

thanks

Paolo Ciccone · July 11th, 2007, 11:27 AM

If you can capture via the component out or SDI then you get better color information and that would lead to a better key. You can still capture via HD or tape. When you bring the footage inside you computer convert it to a better codec like SheerVideo to obtain the most out of your key.

Fernando Orozco · July 11th, 2007, 04:10 PM

why don't you try key correct pro http://www.redgiantsoftware.com/keycorrect.html , I used in an extensive project that required keying in every take and it saved my day.

July 9th, 2007, 06:37 PM	#1
Claude Mangold Major Player Join Date: Dec 2006 Location: Berlin and Geneva Posts: 259	Greenkeying with HD110 / 250 ? Has anyone tried it ? How is the result ? Which keying software did you then use ? Any tips ? Thanks !

July 10th, 2007, 10:55 AM	#3
Paolo Ciccone Trustee Join Date: Apr 2005 Location: Santa Cruz, CA Posts: 1,116	Convert the HDV footage to a better codec, I use SheerVideo (http://www.bitjazz.com), and load it in AfterEffects Pro. Use Keylight and do final color correction with Color Finesse and you'll get very nice results. __________________ Paolo http://www.paolociccone.com Demo Reel

July 11th, 2007, 11:27 AM	#6
Paolo Ciccone Trustee Join Date: Apr 2005 Location: Santa Cruz, CA Posts: 1,116	If you can capture via the component out or SDI then you get better color information and that would lead to a better key. You can still capture via HD or tape. When you bring the footage inside you computer convert it to a better codec like SheerVideo to obtain the most out of your key. __________________ Paolo http://www.paolociccone.com Demo Reel

July 9th, 2007, 08:34 PM	#2
Eric Darling Major Player Join Date: Jun 2006 Location: Savannah, GA Posts: 463	Yes, I've done it many times now with the HD100, but I recommend digitizing to ProRes or DVCPRO 50/100 for keying jobs. You can check out a few spots I did earlier this year for a local grade school. http://www.ethreemedia.com/bss The footage in these compressed clips was digitized as DVCPRO 100, and then keyed in After Effects using Keylight. I'd probably do this job in SD now, using my Kona LH to downconvert to ProRes 422. It would save a ton of space on a larger job, and it's probably a lot faster to render. I'd also consider keying right inside FCP now, using the Boris Chroma Keyer and the 422 antialiasing filter. The old thread about those spots can be seen here: http://www.dvinfo.net/conf/showthread.php?t=85526

July 11th, 2007, 11:09 AM	#5
Claude Mangold Major Player Join Date: Dec 2006 Location: Berlin and Geneva Posts: 259	many thanks for this info. this is a wonderful site !!! does this mean that we should directly capture via the 251's HD-SDI to a macpro with a HD-SDI card ? rather than putting the footage on tape and capturing it later ? does this mean that we can't use JVC's HDD ? also, we were thinking of getting a blackmagic multibridge eclipse - but is an internal HD-SDI card better in this case ? thanks

July 11th, 2007, 04:10 PM	#7
Fernando Orozco Regular Crew Join Date: Nov 2006 Location: Colombia Posts: 26	why don't you try key correct pro http://www.redgiantsoftware.com/keycorrect.html , I used in an extensive project that required keying in every take and it saved my day.