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View Full Version : Simple MDegrain Mod - SMDegrain() Mod v1.8d


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real.finder
22nd May 2019, 17:33
Denoisers are not effective enough at removing noise in SMDegrain as Prefilter input clip.

For example, there is a big difference between smdegrain (tr=3,thsad=300,prefilter=removegrain(11),pel=1)
and smdegrain (tr=3,thsad=300,pel=1).removegrain(11)

But I wanna use denoisers in SMDegrain as Prefilter input clip.

How is it possible to make them more effective?

smdegrain is only Temporal Denoiser, it work good in some sources and in others it's not, anyway did you tried it like this


RGclip=removegrain(11)
smdegrain (tr=3,thsad=300,prefilter=RGclip,mfilter=RGclip,pel=1)
?

also you can try something else like dfttestMC and admfilter

redfordxx
19th January 2020, 01:47
Hi, I am trying SMDegrain...
...when I use contrasharp, then the 32bit filters are required, am I correct?
And then I am going out of memory with 3K video...

Any chance having 64bit version of contrasharp?

StainlessS
19th January 2020, 10:54
Redforxx, Probably be a good idea to give details of input clip and also your script call to SmDegrain, otherwise maybe too much guesswork for real.finder.
[just my guess].

redfordxx
19th January 2020, 21:05
Well.... today it didn't crash...
I have 3264 x 1836 30FPS.
I triedSMDegrain(tr=4,thSAD=400,thSADC=200,contrasharp=40,refinemotion=true,truemotion=true,subpixel=1,pel=1)

But I plan to add deshaker... so I am worried it will crash... we'll see

Speaking of the deshaker...it compensates global rotation, so DePan
that would help MVAnalyse finding motion vectors on strongly rotating videos, correct?

redfordxx
19th January 2020, 21:25
I don't know whether it is implemented...
...I understood, the sharpening is limited by max change made by the denoiser...

How about to limit it max and min of all motion-compensated neighbour frames? Because due to sudden local motion the single frame could be blured and both neighbours could be sharp...so the limitation of the current frame would be not enough.

Is there any filter, which returns max or min value of multiple (lot of) clips?

real.finder
20th January 2020, 18:40
there are some mc sharp funtions by Didée

BTW I don't know what SMDegrain you use but the OP one is so outdated