Flicker Correction Software? at DVinfo.net

Joshua Provost · January 12th, 2006, 09:29 AM

I am working with some footage shot on 16mm and telecined to miniDV. The footage was shot in a location with some overheard flourescents. The DP didn't know to use a 1/60th (144 degree) shutter to avoid flickering from the lights, and went with the normal 1/48th (180 degree).

What can I do about this in post? Are there flicker removal plugins (not the Reduce Interlace Flicker ones, because those are a different animal)? I use Premiere and AfterEffects, but I'd consider other solutions as well.

Thanks,
Josh

Andre De Clercq · January 12th, 2006, 04:00 PM

Joshua,
I don't think there is specific SW to remove interference flicker. If it is really important to correct the flicker you could put the footage on an NLE timeline and try to find the interference (flicker) period. Then put in the overlay track an anti-modulation sequence and take "multiply" as overlay option. The anti-modulation track can be composed from colorclips (gray) sequences with the right duration and graylevel changes, up and down in the right phase with yr footage. Rendering this will remove the flicker.

Joshua Provost · January 12th, 2006, 04:06 PM

I have found Film Fix from Red Giant Software. I downloaded the demo and it gets the job done. However, it costs $2k. If anyone has Film Fix and wants to run eight minutes of footage through it as a side job, please get in touch.

John McManimie · January 13th, 2006, 11:03 AM

Joshua,

You might look at Donald Graft's Antiflicker Filter for VirtualDub at:

http://neuron2.net/flick.html

OR

the VirtualDub MSU Deflicker filter at:

http://www.compression.ru/video/deflicker/index_en.html

If you have access to Avid, you can get FlickerFiX for $80 at:

http://www.3prong.com/

There are others in several plugin suites, but the price will be up there with the Red Giant stuff.

John

Joshua Provost · January 13th, 2006, 11:44 AM

John,

Thanks so much for pointing me in the direction of VirtualDub. I have had that tool tucked away for a long time, and rarely use it.

I found the two deflicker plugins you metioned a little complicated, but tried some other plugins while I was in there. The Temporal Cleaner, when set with the appropriate thresholds and using luma lock not only removed the flicker but most of the film grain/noise as well. It's like brand new footage!

Thanks
Josh

January 12th, 2006, 09:29 AM	#1
Joshua Provost Major Player Join Date: Sep 2004 Location: Phoenix, AZ Posts: 493	Flicker Correction Software? I am working with some footage shot on 16mm and telecined to miniDV. The footage was shot in a location with some overheard flourescents. The DP didn't know to use a 1/60th (144 degree) shutter to avoid flickering from the lights, and went with the normal 1/48th (180 degree). What can I do about this in post? Are there flicker removal plugins (not the Reduce Interlace Flicker ones, because those are a different animal)? I use Premiere and AfterEffects, but I'd consider other solutions as well. Thanks, Josh __________________ Owner/Operator, 727 Records Co-Founder, Matter of Chance Productions Blogger, Try Avoidance Last edited by Joshua Provost; January 12th, 2006 at 04:05 PM.

January 12th, 2006, 04:06 PM	#3
Joshua Provost Major Player Join Date: Sep 2004 Location: Phoenix, AZ Posts: 493	I have found Film Fix from Red Giant Software. I downloaded the demo and it gets the job done. However, it costs $2k. If anyone has Film Fix and wants to run eight minutes of footage through it as a side job, please get in touch. __________________ Owner/Operator, 727 Records Co-Founder, Matter of Chance Productions Blogger, Try Avoidance

January 13th, 2006, 11:44 AM	#5
Joshua Provost Major Player Join Date: Sep 2004 Location: Phoenix, AZ Posts: 493	John, Thanks so much for pointing me in the direction of VirtualDub. I have had that tool tucked away for a long time, and rarely use it. I found the two deflicker plugins you metioned a little complicated, but tried some other plugins while I was in there. The Temporal Cleaner, when set with the appropriate thresholds and using luma lock not only removed the flicker but most of the film grain/noise as well. It's like brand new footage! Thanks Josh __________________ Owner/Operator, 727 Records Co-Founder, Matter of Chance Productions Blogger, Try Avoidance

January 12th, 2006, 04:00 PM	#2
Andre De Clercq Major Player Join Date: Sep 2002 Location: Belgium Posts: 804	Joshua, I don't think there is specific SW to remove interference flicker. If it is really important to correct the flicker you could put the footage on an NLE timeline and try to find the interference (flicker) period. Then put in the overlay track an anti-modulation sequence and take "multiply" as overlay option. The anti-modulation track can be composed from colorclips (gray) sequences with the right duration and graylevel changes, up and down in the right phase with yr footage. Rendering this will remove the flicker.

January 13th, 2006, 11:03 AM	#4
John McManimie Major Player Join Date: Mar 2004 Location: Portland, OR Posts: 314	Joshua, You might look at Donald Graft's Antiflicker Filter for VirtualDub at: http://neuron2.net/flick.html OR the VirtualDub MSU Deflicker filter at: http://www.compression.ru/video/deflicker/index_en.html If you have access to Avid, you can get FlickerFiX for $80 at: http://www.3prong.com/ There are others in several plugin suites, but the price will be up there with the Red Giant stuff. John