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February 2nd, 2010, 04:34 AM
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#1 |
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Inner Circle
Join Date: Jan 2006
Posts: 2,290
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spill suppression in Vegas 9c
So I have some less than ideal 720p m2t files. Subject is 9 feet from screen, backlit, but she's got bleach blonde surfer girl hair. So she's got spill on her hair. Allegedly there's a way with secondary color corrector to resolve some of this...What are the steps?
Anyone know? |
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February 2nd, 2010, 04:57 AM
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#2 |
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Trustee
Join Date: Sep 2004
Location: Bristol, CT (Home of EPSN)
Posts: 1,192
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I'd be interested in this too. I always have trouble removing spill when keying in Vegas.
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February 2nd, 2010, 05:33 AM
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#3 |
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Regular Crew
Join Date: Oct 2009
Location: Ravenna, OH
Posts: 198
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Sounds more like it's over exposed?
Turn on the histogram - view/videoscopes - and see where the highlights are. Then use "levels" FX to try to bring them down a bit. |
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February 2nd, 2010, 07:08 AM
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#4 |
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Inner Circle
Join Date: Jul 2009
Location: Perth, Western Australia
Posts: 8,441
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Hi Brian and Paul
Here you go : Use the following effects chain: (1) Chroma Blur set to Medium blur (2) Chroma Key effect. (3) Secondary Color Corrector for spill supression Leave Secondary Colour Correction turned off until you have a solid key. Now that may leave a little green cast on the edges especially around her blonde hair as you have already pointed out. Now go back and turn off the check box on the Chroma Key effect and then bring up your secondary color corrector. Under FX range, use the eyedropper to select the same general green area that you selected for the chroma key effect. Now slide all of the smooth sliders to the right. Slide the highs and lows for the Luma and the Saturation controls full open and then just adjust the hue width so it looks good. Now go to the top section of the control and desaturate or rotate the hue whilst watching the offending bits only. Don't worry about the green sections as they are going to be removed by the chroma key when you enable it again. Works pretty well!! Chris |
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February 2nd, 2010, 09:32 AM
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#5 |
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Regular Crew
Join Date: Oct 2009
Location: Ravenna, OH
Posts: 198
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Hrm, interesting learn something new every day :)
Will this work with any blown highlights or just "spill" in a girl's hair? |
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February 2nd, 2010, 02:07 PM
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#6 |
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Regular Crew
Join Date: Dec 2009
Location: Encinitas California
Posts: 121
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I'm shooting against a 7'x7' green screen, with talent only about 8' in front of it - with lots of frizzy white hair. Quite a bit of spill, which i've been suppressing with NewBlu's keyer. Pretty effective, except that I lose significant detail in the hair. Would I be better off abandoning NewBlu and adopting this secondary color method?
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February 2nd, 2010, 04:39 PM
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#7 |
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New Boot
Join Date: Nov 2007
Location: Linden, Virginia
Posts: 5
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Spill Suppression
Hi Chris,
Having had less than stellar results from the Vegas Keyer I started using Cinegobs Keyer which does have spill suppression. Your method for staying within Vegas was excellent. Thank you for the tip! |
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February 2nd, 2010, 05:24 PM
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#8 |
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Inner Circle
Join Date: Jul 2009
Location: Perth, Western Australia
Posts: 8,441
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Hi Guys
The keyer I REALLY like working with is VisualStudio from FXHome ..it has a "one click" spill fix and the ability to create all sorts of mattes too ... makes even badly lit chroma shots "fixable" Chris |
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February 6th, 2010, 03:58 AM
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#9 | |
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Trustee
Join Date: Sep 2004
Location: Bristol, CT (Home of EPSN)
Posts: 1,192
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Quote:
Then, I move Hue Width and nothing happens. Should mask be on or anything? What am I looking for? When do I turn the Chroma Key filter on again? Could you elaborate a bit more? Thanks |
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