How to apply SeeSaw only to little-motion frames?

[moviefan]

Hey guys,

I like Didée's SeeSaw function, but would like to apply it only to frames that show little motion. In action scenes, it makes not much sense, from my point of view (please criticise), to apply the sharpening, actually I think it's bad for picture quality since the "blurred" motion cannot really be sharpened. Is there a way to apply SeeSaw only to those frames with little motion?
Additionally, I think it makes also not too much sense to apply it to very dark areas with little detail anyway. How can I prevent SeeSaw from sharpening those areas?

Thanks for help!

[Jeremy Duncan]

Seesaw sharpens the Luma, as far as I know.
What you want is to get the luma to be divided as you wish.

It doesn't sound reasonable to me.
Noise is very fast to my eyes.
But even noise is afected by luma sharpening.
So getting luma to do what you want sounds to me like a impossibility.

But what do I know?

[Nikos]

Try this to not apply sharpening to dark areas:


...
source=last
a = source.Your_Preferred_Denoising()
b = SeeSaw(source, a)

th_low = 0
th_high = 32 # or 40 for more "dark" areas

dmask = source.levels(th_low, 1.0, th_high, 255, 0, false)

b.mt_merge(a, dmask, U=3, V=3, luma=true)


If you want to see the dark areas with white color for tweaking the th_high value use the following script:

...
source=last

th_low = 0
th_high = 32 # Change the value

dmask = source.levels(th_low,1.0,th_high,255,0,false)

dmask.greyscale()

[moviefan]

Seesaw sharpens the Luma, as far as I know.
What you want is to get the luma to be divided as you wish.

It doesn't sound reasonable to me.
Noise is very fast to my eyes.
But even noise is afected by luma sharpening.
So getting luma to do what you want sounds to me like a impossibility.

But what do I know?

I see I didn't point out that my intention of this is sharpening the picture while saving bitrate (with excluding fast motion from sharpening, since I think one doesn't notice the effect very much so that's where I can save bitrate). Does it now make sense?