color correction is a bigggg time consumer at DVinfo.net

Michael Barrette · March 19th, 2007, 11:40 PM

Wowzers! Added a little color correction to a SD project on 3 clips (ok they're pretty long), nothing major, just some minor adjustments... now rendering will take at least 12 hours to get through this project, whereas without the minor colour correction it's about 10 minutes or so... Now I see color correction is ideally done in camera prior to hitting record!

Just thought I'd share my experience...

Ken Hodson · March 20th, 2007, 12:17 AM

That seems a little looooong. You neglected to mention what software, codec, system you are using. Are you in AE 16bit? Maybe render out your other FX first, then do your CC.

Bart Walczak · March 20th, 2007, 06:43 AM

The predicted rendered time is often inaccurate. If you have a lot of effects in the beginning, and nothing later on, it will at first show you that your material will take much time to render. In truth, it won't.

Michael Barrette · March 23rd, 2007, 12:33 PM

Yes, turns out my post was a little hasty. It rendered significantly faster than it said it would. Color correction definitely ups the time significantly, but in the end was reasonable...

Cheers,
M

John Miller · March 23rd, 2007, 06:21 PM

For typical color correction operations (chroma, phase, brightness, contrast), you can use our Enosoft DV Processor to perform real-time correction (either during capture, printing back to tape or from AVI-to-AVI). You can even insert the computer between two SD DV devices and use it as a real-time hardware video processor.

See my profile for the website link.

Graham Risdon · March 24th, 2007, 03:22 AM

If you're doing a lot of colour correction, it may be worth looking at an RT board that supportsa Premiere. I use a DV Storm with Premiere 6.5 and I can do realtime colour correction on 2 clips at the same time. Saves loads of time!

Hope this helps

Bill Ritter · March 25th, 2007, 01:37 PM

I have the Matrox RTX2 and the older RT100X, both accelerate those sorts of things so that it edits in real time (RT).

Export of SD projects to mpg for DVD is faster in real time in both. HD takes about 2X real time to make HD into mpg2 for SD DVD. I also exported a HD clip as mpg2 for 1080i for future Blu-ray disk, that was taking 2-2.5X real time.

Bill

Mike Wade · March 26th, 2007, 07:26 AM

[ I also exported an HD clip as mpg2 for 1080i for future Blu-ray disk, ]

How did you do that Bill ? I have the Pro2/Matrox RTX2 combo and the only way I have found to save an HDV project for eventual distribution on HD-DVD or Blu-ray is to export to tape ? Or is that what you mean ? When will we be able to export HDV to HD-DVD/Blu-ray from within the RTX2/Prem2 set up ?

March 19th, 2007, 11:40 PM	#1
Michael Barrette Regular Crew Join Date: Feb 2007 Location: calgary, Canada Posts: 48	color correction is a bigggg time consumer Wowzers! Added a little color correction to a SD project on 3 clips (ok they're pretty long), nothing major, just some minor adjustments... now rendering will take at least 12 hours to get through this project, whereas without the minor colour correction it's about 10 minutes or so... Now I see color correction is ideally done in camera prior to hitting record! Just thought I'd share my experience...

March 20th, 2007, 12:17 AM	#2
Ken Hodson Trustee Join Date: Aug 2003 Location: Vancouver BC Canada Posts: 1,315	That seems a little looooong. You neglected to mention what software, codec, system you are using. Are you in AE 16bit? Maybe render out your other FX first, then do your CC. __________________ Damnit Jim, I'm a film maker not a sysytems tech.

March 20th, 2007, 06:43 AM	#3
Bart Walczak Major Player Join Date: Apr 2006 Location: Warsaw/Poland Posts: 716	The predicted rendered time is often inaccurate. If you have a lot of effects in the beginning, and nothing later on, it will at first show you that your material will take much time to render. In truth, it won't.

March 23rd, 2007, 12:33 PM	#4
Michael Barrette Regular Crew Join Date: Feb 2007 Location: calgary, Canada Posts: 48	Yes, turns out my post was a little hasty. It rendered significantly faster than it said it would. Color correction definitely ups the time significantly, but in the end was reasonable... Cheers, M

March 23rd, 2007, 06:21 PM	#5
John Miller Major Player Join Date: Oct 2005 Location: Hillsborough, NC, USA Posts: 968	For typical color correction operations (chroma, phase, brightness, contrast), you can use our Enosoft DV Processor to perform real-time correction (either during capture, printing back to tape or from AVI-to-AVI). You can even insert the computer between two SD DV devices and use it as a real-time hardware video processor. See my profile for the website link.

March 24th, 2007, 03:22 AM	#6
Graham Risdon Regular Crew Join Date: Jul 2005 Location: Wiltshire, UK Posts: 192	If you're doing a lot of colour correction, it may be worth looking at an RT board that supportsa Premiere. I use a DV Storm with Premiere 6.5 and I can do realtime colour correction on 2 clips at the same time. Saves loads of time! Hope this helps

March 25th, 2007, 01:37 PM	#7
Bill Ritter Regular Crew Join Date: Oct 2006 Location: Beavercreek, OH Posts: 93	I have the Matrox RTX2 and the older RT100X, both accelerate those sorts of things so that it edits in real time (RT). Export of SD projects to mpg for DVD is faster in real time in both. HD takes about 2X real time to make HD into mpg2 for SD DVD. I also exported a HD clip as mpg2 for 1080i for future Blu-ray disk, that was taking 2-2.5X real time. Bill

March 26th, 2007, 07:26 AM	#8
Mike Wade Regular Crew Join Date: Feb 2005 Location: Holmfirth, West Yorkshire, UK Posts: 161	[ I also exported an HD clip as mpg2 for 1080i for future Blu-ray disk, ] How did you do that Bill ? I have the Pro2/Matrox RTX2 combo and the only way I have found to save an HDV project for eventual distribution on HD-DVD or Blu-ray is to export to tape ? Or is that what you mean ? When will we be able to export HDV to HD-DVD/Blu-ray from within the RTX2/Prem2 set up ?