Problem with optical flow - slomo

[zvit]

Issue with slow motion and optical flow...
Whenever there is a flash from a camera, well... I won't try to explain what happens, I'll just show you a video clip: (happens twice in clip)

https://youtu.be/euNwaqVZO7c

[DigitalDave]

Read this thread http://forum.grassvalley.com/forum/s...ad.php?t=38879

[zvit]

Tried applying the New Blue flash remover pro. Didn't help a bit.

[SoundFreak_HD]

Tried applying the New Blue flash remover pro. Didn't help a bit.

Could you try again by exporting the clip with the newblue filter applied, then use optical flow again ....

[GrassValley_SL]

If there is sudden light change optical flow can fail.
You can read up a bit if you like.

The assumption is constant aperture in the math. :)

[zvit]

Could you try again by exporting the clip with the newblue filter applied, then use optical flow again ....

what do you mean by "then use optical flow again?" I applied optical flow AND New blue AND slo-mo. What are you asking me to do now?

[GrassValley_SL]

He is asking you to:
1 "clean" the file first with the new blue filter.
2 export it to a new file
3 Use the newly created file for slow motion.

[zvit]

He is asking you to:
1 "clean" the file first with the new blue filter.
2 export it to a new file
3 Use the newly created file for slow motion.

ahh, ok. I won't export it but render it with SHFT-Q and then do that.

[zvit]

Put clip speed to 100%. I tried every single preset in the "flash remover pro". Didn't remove a single flash.

[SoundFreak_HD]

ahh, ok. I won't export it but render it with SHFT-Q and then do that.

Steve understood my suggestion correctly, but it might be hard to fix that footage.

I only have a dual core laptop from 2008 to my disposal now so I can't properly test.
I'm not sure yet how optical flow reacts to the difference between applying the newblue filter and use SHFT+Q and then apply optical flow OR export the repaired clip and then only apply optical flow.

That's why I suggested TRY the suggestion, if you know there is no difference then disregard......

[zvit]

Steve understood my suggestion correctly, but it might be hard to fix that footage.

I only have a dual core laptop from 2008 to my disposal now so I can't properly test.
I'm not sure yet how optical flow reacts to the difference between applying the newblue filter and use SHFT+Q and then apply optical flow OR export the repaired clip and then only apply optical flow.

That's why I suggested TRY the suggestion, if you know there is no difference then disregard......

Thanks but I didn't get to the export part because the new blue filter didn't remove the flash anyway.

[Khoi Pham]

That happens with AE too so I'm use to it, the easier fix is make a cut before and after the flash and apply Frame Blend there instead of optical flow.