If the G channel has more quality, then... at DVinfo.net

Giovanni Speranza · May 1st, 2008, 12:29 PM

Hi, i have an idea! Is it good or is it stupid?

As the G channel has more quality in a HDV color space, then wouldn't be a good idea to shoot with a greenish dominance (using white balance or setting the camera parameters) and then in post re balance the colors in a 4:4:4 space?

Example: in this shot the R vs G vs G quality, noise and resolution are quite different.

Thanks for your advices.

Jo Potts · May 2nd, 2008, 02:20 AM

It doesn't really work like that - if you try to sort the colours out in post, it takes the information from the relevant colour channel and therefore won't make any difference...or in the worst case won't look right as you can't balance it properly.

On a side note - this is the reason we use green screen for chromakey on video rather than blue as the green channel is a much higher quality and therefore easier to key out.

Giovanni Speranza · May 2nd, 2008, 06:45 AM

Thank you Jo.
So is'nt there a way, using phase or any plugin that can apply the color of a channel to a different channel?

May 1st, 2008, 12:29 PM	#1
Giovanni Speranza Regular Crew Join Date: Aug 2006 Location: Lugano, Switzerland Posts: 149	If the G channel has more quality, then... Hi, i have an idea! Is it good or is it stupid? As the G channel has more quality in a HDV color space, then wouldn't be a good idea to shoot with a greenish dominance (using white balance or setting the camera parameters) and then in post re balance the colors in a 4:4:4 space? Example: in this shot the R vs G vs G quality, noise and resolution are quite different. Thanks for your advices. Attached Thumbnails

May 2nd, 2008, 02:20 AM	#2
Jo Potts Regular Crew Join Date: Apr 2008 Location: Cambridge, UK Posts: 40	It doesn't really work like that - if you try to sort the colours out in post, it takes the information from the relevant colour channel and therefore won't make any difference...or in the worst case won't look right as you can't balance it properly. On a side note - this is the reason we use green screen for chromakey on video rather than blue as the green channel is a much higher quality and therefore easier to key out. __________________ MBP 15" 2.6Ghz, 4GB RAM. 2TB storage. FCS2. Canon XH-A1. www.jpcreativemedia.com vimeo.com/user449069

May 2nd, 2008, 06:45 AM	#3
Giovanni Speranza Regular Crew Join Date: Aug 2006 Location: Lugano, Switzerland Posts: 149	Thank you Jo. So is'nt there a way, using phase or any plugin that can apply the color of a channel to a different channel?