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Rolling Shutter Repair issue - I think

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Sarah BrightRolling Shutter Repair issue - I think
by on Apr 24, 2014 at 4:43:49 am

Hi guys,

I have some lightening shots I need to fix but I'm fairly new to after effects and I'm not sure where to start.
The rolling shutter repair does nothing to help and I need to get these shots done soon as they're required in the edit.

Any advice would be greatly appreciated.
Thanks







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George GoodmanRe: Rolling Shutter Repair issue - I think
by on Apr 24, 2014 at 2:10:17 pm

Not really clear on what the problem is from the description or screenshots. Can you try to clarify what the problem is or perhaps upload a video?


"|_ (°_0) _|"

Sincerely,

George


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Sarah BrightRe: Rolling Shutter Repair issue - I think
by on Apr 24, 2014 at 2:49:45 pm

Hi George,
Basically, in the screen grabs, when the lightening strikes, you can see a 'split screen' with part of the frame light and the other dark.
My director wants me to remedy the issue...

Hope that helps.

Sarah


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George GoodmanRe: Rolling Shutter Repair issue - I think
by on Apr 24, 2014 at 3:04:44 pm

Hmm, a little bit of a tough one. Try playing with this a little.

Duplicate your footage and change the transfer mode to add. Didnt do it?

Try offsetting the footage very slightly by a frame or 2. Maybe mask half of it and play with the feather.

Something in that range of solutions might do it for you


"|_ (°_0) _|"

Sincerely,

George


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Sarah BrightRe: Rolling Shutter Repair issue - I think
by on Apr 24, 2014 at 3:28:00 pm

Okie doke, I'll give those a go. Thank you.

Is this a rolling shutter issue or is it something different completely?
x


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George GoodmanRe: Rolling Shutter Repair issue - I think
by on Apr 24, 2014 at 3:35:45 pm

It is very likely a rolling shutter issue. Since the flashes of light are so fast, only part of the sensor is exposed and then the flash is over before the rest can be. It's a tough one to fix. If you have too much trouble with it, try to think of alternative stylistic solutions. If something is messed up, just mess it up more and call it art!


"|_ (°_0) _|"

Sincerely,

George


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Michael SzalapskiRe: Rolling Shutter Repair issue - I think
by on Apr 24, 2014 at 4:24:09 pm

The problem is that most tutorials and techniques for dealing with rolling shutter involve warping the video or something to move everything back in line.

Your problem, however, is that you are completely lacking any sort of data at all. The sensor was only partly exposed to the lightning while it was recording.

You could try using an adjustment layer with a mask on it to lighten up the rest of the shot to make it match the part with the lightning. It's only flashing for one frame, remember, so you don't have to be perfect.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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Jon DoughtieRe: Rolling Shutter Repair issue - I think
by on Apr 24, 2014 at 3:59:04 pm

Do not know is this will help, but this tutorial on rolling shutter repair from Premiere CS6 might be worth a try.

http://library.creativecow.net/devis_andrew/Premiere-Pro-CS6-Basics_107/1


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Sarah BrightRe: Rolling Shutter Repair issue - I think
by on Apr 25, 2014 at 5:33:29 am

Thanks for the input guys, it's really helpful.

Will see what I can do.

Thank you

x


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Walter SoykaRe: Rolling Shutter Repair issue - I think
by on Apr 25, 2014 at 3:44:38 pm

Similar to George's approach, I'd probably approach these few frames with the Echo effect (add or screen) over 3 frames or so and a couple of instances of CC Simple Wire Removal to heal any discrepancies in the shutter lines.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
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