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Remove black moving pixels
Hi!
I’ve recently shoot a home video with my cellphone (didn’t have any better atm) which can capture 1280×720 at 30fps. As expected, in low-light conditions it adds a lot of noise to the footage.
I can remove the light noise and the color noise to a decent result however I can’t do the same for these “black pixels noise”. It’s a one or two pixels that are black, spread throw-out the frame.
I had a compact digital camera, which captured with the same resolution, and this effect also occurred. It must be some effect from low-budget camera that capture in HD.
Anyways, here’s a frame with said noise:
https://s8.postimage.org/frfyiuur9/unfilt.jpgThe same frame but with NeatVideo filter:
https://s1.postimage.org/4c63z91kf/filter.jpgNeatVideo does a great job but can’t remove these black pixels. They are not dead or hot pixels. They move all around like normal noise.
Any ideas on how to remove them?
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2 Replies
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Not much you can do, to really get rid of those black pixels.
Steve Rhoden
(Cow Leader)
Film Editor & Compositor.
Filmex Creative Media.
https://www.facebook.com/FilmexCreativeMedia
1-876-832-4956 -
I tried a little trick and it kinda worked.
I added an effect that lets me select which color is transparent. I choose black so the little black pixels were almost all transparent.
On the track under I added the same clip but with a blur effect enough so that the black pixels wouldn’t be seen.So the “holes” in the top clip let the blurred pixels through.
It kinda works because not all the black pixels are really pure black. Some are brown. Another reason is because there are parts of the image that are darker, so those get transparent as well.Maybe with a lot of tweaking I can get just the black pixels to be transparent.
Or does someone has a better idea? (Maybe based on this)
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