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nasty bit of aliasing - any tips on removing it?

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Dylan Hargreavesnasty bit of aliasing - any tips on removing it?
by on Dec 28, 2012 at 9:18:48 pm

Hey folks,

Please take a look at the attached still. Notice the light behind the presenter: there's a nasty bit of red aliasing off its left edge.

The footage is AVCHD natively edited in Premiere Pro and sent to AE for grading. If I can't remove it from the original footage, might transcoding the footage using an HQ compressor such as 5DtoRGB get rid of it?

Thanks in advance!

D



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Dave LaRondeRe: nasty bit of aliasing - any tips on removing it?
by on Dec 28, 2012 at 9:27:12 pm

[Dylan Hargreaves] " If I can't remove it from the original footage, might transcoding the footage using an HQ compressor such as 5DtoRGB get rid of it?"

Probably not. There's a reason why 5D's are so flippin' cheap: they don't have the world's best system for recording color. Thus, the color problems are recorded right into the original files, and it will be EXTREMELY difficult -- think in terms of entire work days -- to fix them. I'm not sure how many shots this affects. So it's difficult to say for certain.

How much time do you have?

Dave LaRonde
Former Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Dylan HargreavesRe: nasty bit of aliasing - any tips on removing it?
by on Dec 28, 2012 at 11:33:39 pm

It was actually an FS700 Dave!

I do have a bit of time, but if it means removing it frame by frame I'm not sure the budget quite justifies it.

It's on a tracking shot, but I'm wondering if a cheeky bit of photoshop work might suffice...


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Angelo LorenzoRe: nasty bit of aliasing - any tips on removing it?
by on Dec 29, 2012 at 1:24:16 am

Its hard to tell from the stills, but the channels all look a little fried. I would try tracking the object and applying a localized channel blur.

5DtoRGB may help, as I would also assume any conversion with FFMPEG/FFMBC as they bypass Apple's Quicktime elements which seem to chew up video.

--------------------
Angelo Lorenzo

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Dylan HargreavesRe: nasty bit of aliasing - any tips on removing it?
by on Dec 29, 2012 at 12:18:03 pm

Thanks Angelo, will give it a try!


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