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How can I revert from dynamic stretched 16:9 aspect ratio to 4:3 aspect ratio?

New Here ,
May 25, 2024 May 25, 2024

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Hello Everyone,

 

I've got an aspect ratio issue that I was hoping someone might be able to help me with. I have a video that was originally shot in 4:3 but was later converted to 16:9. The aspect ratio wasn’t simply changed by stretching it to 16:9, rather the sides were stretched so that it would fit the 16:9 ratio meanwhile keeping center of the frame unaltered. Basically, I can’t fix it by changing the aspect ratio back to 4:3 because doing so will compress the middle but still keep the weird morphing, stretching effects on the sides.

 

From all the research I’ve done online, this effect seems to go by a few names: Non-Linear Stretch (NLS), Dynamic Stretching (according to GoPro), and Atomic Stretch (by Atom Image Labs). I tried a plugin called Andy’s Elastic Aspect on FxFactory, in addition to Atomic Stretch but again, neither of these plugins reverted the stretch back to 4:3. The only one that I found that was close was the GoPro FX Reframe plugin. By changing the projection to “HD 4:3” and checking the “Undo Superview” checkbox I was able to create a pretty close copy of what the original would have looked like but there is still some morphing on the edges.

 

Does anyone know of any plugins or techniques that I can use to fix this problem?

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Editing , Effects and Titles , Formats , How to

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Community Expert ,
May 25, 2024 May 25, 2024

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post screenshot of the clip.

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New Here ,
May 25, 2024 May 25, 2024

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Example.png

 

 

 

 

 

 

 

 

I created this as quick example so that you can see the 4:3 aspect ratio next to it.

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Community Expert ,
May 25, 2024 May 25, 2024

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The left one looks weird.

Try Lens Distortion / curvature.

You will have to zoom in and crop the left and right side a bit.

You wont get a perfect picture.

 

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New Here ,
May 25, 2024 May 25, 2024

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Right, I did that using Atomic Stretch. And I'm trying to find a soultion to revert the process so that it can look like the one on the right. So I was hoping to avoid cropping anything because I don't to lose any part of the picture. And because all of the picture is there (just distored) I was wondering if there a solution to return it back to it's orignal look. Maybe a plugin? or a technique in Premiere Pro or After Effects?

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Community Expert ,
May 25, 2024 May 25, 2024

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You could try AE warp.

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New Here ,
May 25, 2024 May 25, 2024

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I did try that actually, it didn't seem to work quite right, but I coud mess around with it more.

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