Good De-grain String (or premade filter)?

[Honeyko]

I rip mainly older movies, and I've run into a couple that are so horribly grainy that even the LEM filter in AutoMKV can hardly make a dent unless I really shrink the output frame dimensions (e.g., take a 1950-era "B"-movie's 4x3 DAR aspect-ratio 720x480 PAR source and crush it to 576x432 or even lower -- something I prefer not to do.

-- What rocks out there for dealing with "grain blizzards"?

[Atak_Snajpera]

Try FFT3DGPU + hqdn3d + gradfun2db

[Avenger007]

-- What rocks out there for dealing with "grain blizzards"?
MC_Spuds (http://forum.doom9.org/showthread.php?t=131279) :cool:

[Honeyko]

Can these sequences be called from within AutoMKV? (I love being able to GUI queue.) ....I notice FFT3DGPU both in hqdn3d AutoMKV's filters lists (no gradfun, however); I seem to recall there was a trick to apply more than one filter in that application, but, er, forget....

==//==

Addendum: I'm presently testing the vid with the following settings in AutoMKV:

[x] Enable HGAVS; threshold = Auto; Aggressive_All_Around_SLOW_Denoise
....alert pops up telling me that main filter will be disabled.)
....go back to the main window and reset main filter anyway....
Filter = FFT3DFilter(sigma=3)
Resize Filter = HybridFupp Anime LQ Source

(Yeah: I'm trying an LQ anime filter on an old 50's grain-bomb! I'll let you know how it turns out. Maybe some clips too.)

[delacroixp]

MC noise removal script (http://forum.doom9.org/showthread.php?t=131279)(MC_Spuds) :cool:
Gr8 thread !

It's all good.


:):devil::D
Pascal

[Honeyko]

I give up -- I can't kill the grain without introducing shimmer.

Here's a clip (http://tinyurl.com/5646r2).

The trick is to kill the grain in the second scene without introducing a sea of swimming crap, or banding, in the dark area in the upper-left (over the guy's shoulder) in the first scene. Half of this whole movie has dark areas of subtle color changes.

....If you can solve this with a single string (or set of selected tools in AutoMKV), please post it here!

[Nightshiver]

source=last
backward_vec3 = source.MVAnalyse(isb = true,blksize=8, delta = 3, pel = 2, overlap=4, sharp=1, idx = 1)
backward_vec2 = source.MVAnalyse(isb = true,blksize=8, delta = 2, pel = 2, overlap=4, sharp=1, idx = 1)
backward_vec1 = source.MVAnalyse(isb = true,blksize=8, delta = 1, pel = 2, overlap=4, sharp=1, idx = 1)
forward_vec1 = source.MVAnalyse(isb = false,blksize=8, delta = 1, pel = 2, overlap=4, sharp=1, idx = 1)
forward_vec2 = source.MVAnalyse(isb = false,blksize=8, delta = 2, pel = 2, overlap=4, sharp=1, idx = 1)
forward_vec3 = source.MVAnalyse(isb = false,blksize=8, delta = 3, pel = 2, overlap=4, sharp=1, idx = 1)
source.MVDegrain3(backward_vec1,forward_vec1,backward_vec2,forward_vec2,backward_vec3,forward_vec3,thSAD=1000,idx=1)
dfttest()
gradfun2db(2.5)

MVDegrain3 killed a hell of a lot of the grain without messing it up. Required dfttest at default settings (sigma=1.7) and then gradfun2db to get rid of the banding. You can't use these per se in AutoMKV, but just make an avs script and load that into AutoMKV.

[Honeyko]

just make an avs script and load thatAny chance you could provide one?

Thanks....

[Ghitulescu]

see also the answers here -> http://forum.doom9.org/showpost.php?p=1456822&postcount=1
one needs a lot of patience and trials before an acceptable result is obtained.

[Sharktooth]

@Ghitulescu: you may want to link the entire thread not just that posts... ;)

[Sirber]

wrong forum..