View Full Version : Deblending problem
thetoof
30th April 2008, 05:22
After deinterlacing, the clip has some blending... I tried what usually solves this problem, cdeblend, but for some reason, the function is unable to detect the blends.
Here (http://www.mediafire.com/?avsmy2ll55x)'s a couple of frames to understand what I mean and here (http://img518.imageshack.us/img518/5328/blendgv3.jpg)'s a screenshot of one of the blended frames.
My first guess is that the blends are so light that they are too hard to detect... maybe I should do something to accentuate them and use that for the dclip? The only thing is... what??
45tripp
30th April 2008, 17:29
it's hardly visible,
the one frame in the sample where it is, is lost to decimation.
decimate()
denoising will make it even less marked.
dfttest(sigma=3)
if you don't mind losing some stars.
or you could go back to the source,
and try again.
thetoof
30th April 2008, 17:54
The blends are not completely lost during decimation and yeah, I know they are hardly visible, but there presence affects the compressibility of the source.
The denoiser is either not strong enough or completely destroys the details... I'm looking for something that'd target only the blends (similar to cdeblend, but with a better detection). I don't know if it even exists...
This (http://www.mediafire.com/?hmdmipyjebw) is the sample of the unprocessed source (interlaced).
and I used this script: edeintted = nnedi(field=-2)
TDeint(edeint=edeintted, mode=2, mthreshL=2, mthreshC=2)
vinverse()#it is needed later on
#the wonderful deblender I'm looking for
#tdecimate(mode=1)
Thanks anyways, suggestions are always welcome (I wanted to use dfttest later on, but I didn't know it'd help for blends... I hope there is something out there that would be even better!)
45tripp
1st May 2008, 02:55
ugly things come out at night,
without sun glare i'm starting to see more of these blends.
i think this does ok to recude blends.
TDeint(mode=1)
mrestore(numr=40,denm=100,mode=0, chroma=true)
but...
it does other things too.
i suspect it comes to pick your poison
thetoof
5th May 2008, 00:18
Problem solved. Solution and new issue in this (http://forum.doom9.org/showthread.php?t=137240) thread.
vBulletin® v3.8.5, Copyright ©2000-2012, Jelsoft Enterprises Ltd.