user21718: I recently filmed some content of a thin line of a projected image. The video footage is flickering a little and I am wondering if there's any solution to fix the footage once it's been filmed. I have tried to speed up and slow down the footage and it doesn't seem to change it. Is there any way of editing it out on imovie? Thanks!

user24916: tomh's advice to double stack the video layer, reduce opacity by 50% and advance a frame is a great starting point and certainly works well on fluorescent light flicker.
I've just had the same problem with a single chip DLP projector image in shot with the banding looping over about 5 frames. Working in Premiere Pro, I layered the video 3 times, cropped each layer to the projection screen area, reduced each layer to 25% opacity and advanced each layer 1 frame on from the last. I also reduced the brightness on the base layer by 100% (referring to Lumetri Scopes and using my eye to avoid blowing out the slide image). It's a very satisfactory result.
Caveat: If anything crosses the projected image is will look like it has a strobe effect and any animations, video or transitions will have this also, however for a set of static slides you should be fine.
I got a bit carried away and made an example video...
Hope this helps you or anyone else using a search engine to love their quirky issues like i did to find the original post.

21718: <p>I recently filmed some content of a thin line of a projected image. The video footage is flickering a little and I am wondering if there's any solution to fix the footage once it's been filmed. I have tried to speed up and slow down the footage and it doesn't seem to change it. Is there any way of editing it out on imovie? Thanks!</p>
 24916: <p>tomh's advice to double stack the video layer, reduce opacity by 50% and advance a frame is a great starting point and certainly works well on fluorescent light flicker.</p>

<p>I've just had the same problem with a single chip DLP projector image in shot with the banding looping over about 5 frames. Working in Premiere Pro, I layered the video 3 times, cropped each layer to the projection screen area, reduced each layer to 25% opacity and advanced each layer 1 frame on from the last. I also reduced the brightness on the base layer by 100% (referring to Lumetri Scopes and using my eye to avoid blowing out the slide image). It's a very satisfactory result.</p>

<p>Caveat: If anything crosses the projected image is will look like it has a strobe effect and any animations, video or transitions will have this also, however for a set of static slides you should be fine.</p>

<p><a href="https://youtu.be/ZNac2wkXK_Q" rel="nofollow noreferrer">I got a bit carried away and made an example video...</a></p>

<p>Hope this helps you or anyone else using a search engine to love their quirky issues like i did to find the original post.</p>
