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How to Fix a Flicker/Wave Artifact (horizontal)

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Ernie Munick
How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 21, 2018 at 10:00:51 pm

Hard to describe. I've blown it way up to show the artifact in the attached video. It shows in a few spots in the vid (only one instance shown in video below), both around white matting inside a frame.

Is deflicker software the answer? Seems more an undulating effect than a flicker.

Inside light around a white matte, maybe.

Any idea?

https://drive.google.com/file/d/1bf3-9RJbtCR4z1QHzjrw3S7sGzHdZCVJ/view?usp=...


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Doug Metz
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 21, 2018 at 10:25:37 pm

Looks like an interlacing artifact, based on the spacing of the 'wave' and angle of the shot.

Doug Metz

Anode


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Ernie Munick
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 21, 2018 at 10:44:57 pm

Spot on---I'm in a 29.97 interlace timeline (though footage is progressive).

Now, if I could fix, lessen the artifact...

Thanks, Doug


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Doug Metz
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 21, 2018 at 11:12:25 pm

Easy fix - select the project in the browser, and in the Inspector, select the Info tab. In the upper right corner, select ‘Modify Settings’. From there, you can change it from 29.97i to 29.97p

Doug Metz

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Ernie Munick
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 21, 2018 at 11:38:56 pm

I have to export (share) in interlaced form (TV)...


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Bret Williams
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 22, 2018 at 2:38:26 am

Does it show on your interlaced video out or are you using a computer screen? They don’t show interlaced as, well, interlaced.

_______________________________________________________________________
http://BretFX.com FCPX Plugins & Templates for Editors & Motion Graphics Artists
Hang Tag http://bretfx.com/product/hang-tag
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Outliner http://bretfx.com/product/outliner/
Clock Maker http://bretfx.com/product/bretfx-clock-maker/


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Ernie Munick
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 22, 2018 at 11:13:08 am

Watching on computer screen.

And it must be the interlaced timeline: I dropped the same progressive clip in a progressive timeline---no flicker/waves.

Still wonder if there's a fix.

Thanks, Bret


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Bret Williams
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 22, 2018 at 11:24:40 am

Progressive 30p in an interlaced timeline should look progressive. The fields can’t magically appear out of thin air. Well, they’d be there, but they’d be made from the same progressive moment in time so there wouldn’t be any visible interlacing. However, if your footage is actually 60p, then FCPX will map that to fields, which is what you want. 60p is 60 images per sec just as 29.97i is 60 images per second. It won’t look that way on TV. TV is either 720 60p or 1080i. Both are 60 images per sec. None of it looks interlaced in TV. If you’re also distributing for computers, you need to create a de-interlaced version for that.

_______________________________________________________________________
http://BretFX.com FCPX Plugins & Templates for Editors & Motion Graphics Artists
Hang Tag http://bretfx.com/product/hang-tag
Overshoot Text http://bretfx.com/product/overshoot-text/
Outliner http://bretfx.com/product/outliner/
Clock Maker http://bretfx.com/product/bretfx-clock-maker/


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Ernie Munick
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 22, 2018 at 11:36:49 am

Thanks, Brett. You are right.

What makes this weirder (to me), is that when I share the master file (XDCAM 35 mbps), I don't get any of the flicker/waving. It only occurs on that timeline. In fact, when I just look at the clip in the browser...no flicker/waving.

Only in timeline (with effects on or off).


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Bret Williams
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 22, 2018 at 11:55:08 am

And what size is your viewer? Not 100% I’m guessing.

_______________________________________________________________________
http://BretFX.com FCPX Plugins & Templates for Editors & Motion Graphics Artists
Hang Tag http://bretfx.com/product/hang-tag
Overshoot Text http://bretfx.com/product/overshoot-text/
Outliner http://bretfx.com/product/outliner/
Clock Maker http://bretfx.com/product/bretfx-clock-maker/


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Ernie Munick
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 22, 2018 at 1:56:52 pm

I've been viewing at 100%, 200%, 400%...


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Bret Williams
Re: How to Fix a Flicker/Wave Artifact (horizontal)
on Mar 22, 2018 at 3:21:25 pm

Do you have “show both fields” turned on? Otherwise you’re just seeing half Rez.

_______________________________________________________________________
http://BretFX.com FCPX Plugins & Templates for Editors & Motion Graphics Artists
Hang Tag http://bretfx.com/product/hang-tag
Overshoot Text http://bretfx.com/product/overshoot-text/
Outliner http://bretfx.com/product/outliner/
Clock Maker http://bretfx.com/product/bretfx-clock-maker/


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