View Full Version : Aliasing due to Deinterlacing
SpencerX
18th November 2012, 14:10
Hi everyone,
I'm looking for a way to get rid of those flickering aliased lines that appear after deinterlacing, I tried the AA plugin SangNom but it doesnt fix it, wich is normal I think because that's not the kind of aliasing it's supposed to deal with.
The solution I think of is Blurring those lines, but without blurring the rest, then maybe sharpening, depending on the blurring results, but I can't figure out how to do it.
How can I smooth those edges?
All help, advice, hint, are welcome.
image (http://forum.videohelp.com/images/guides/p1877202/tempgaus.png) for better description of the problem.
PetitDragon
18th November 2012, 14:38
try yadif (or 5-tap lowpass) + nnedi3.
Jenyok
18th November 2012, 15:12
LoadPlugin("C:\PROGRAM FILES\AVISYNTH 2.5\PLUGINS\EEDI3\eedi3.dll")
LoadPlugin("C:\PROGRAM FILES\AVISYNTH 2.5\PLUGINS\NNEDI3\nnedi3.dll")
LoadPlugin("C:\PROGRAM FILES\AVISYNTH 2.5\PLUGINS\TDEINT_20070122\tdeint.dll")
LoadPlugin("C:\PROGRAM FILES\AVISYNTH 2.5\PLUGINS\TMMV1\tmm.dll")
# Деинтерлейс PAL (NTSC)
#
# верхнее поле первым
AssumeTFF()
# нижнее поле первым
#AssumeBFF()
edeintted = eedi3(field = -2, \
sclip = nnedi3(field = -2, \
qual = 2))
TDeint(edeint = edeintted, \
order = -1, \
mode = 2, \
sharp = true, \
mtnmode = 3, \
full = false, \
tryWeave = false, \
type = 2, \
emask = TMM(mode = 1))
.
This is only good deinterlace.
Then additional filter you can use to reduse artifacts.
jfcarbel
19th November 2012, 02:37
OP did not mention what deinterlacer they used.
But I had been advised here in doom9 that the QTGMC deinterlacer is typically the best now and surpasses yadiff and nnedi
LemMotlow
19th November 2012, 04:50
d l t d
SpencerX
19th November 2012, 06:34
Thank you for your responses
@PetitDragon: that smoothed the slightly aliased edges but couldnt smooth the biggest ones, it's pretty fast though.
@Jenyok: OMG this runs at less than 0.1fps (Core2Duo here), this is gonna take an eternity
@LemMotlow: Sorry, I don't know the proper term for this, it's the horizontal black line, it has that stair effect, that's what i meant by aliasing.
Actually I tried eedi3 alone, on the deinterlaced video, and it did a pretty good job, though it's very very slow and some frames still have the aliased edges, but are not visible in motion.
LemMotlow
19th November 2012, 12:15
d l t d
gugglu
19th November 2012, 13:18
Hope it will help u ,But it iz slow,Cheer's
SetMTmode(2,4)
SetMemoryMax(2000)
QTGMC( Preset="slower", SourceMatch=3, Lossless=2, Sharpness=0.3, TR2=3,
\NoiseProcess=2, GrainRestore=0.4, NoiseRestore=0.2, Sigma=2,
\NoiseDeint="Generate", StabilizeNoise=true, EdiThreads=6)
but i'm nt expert guy's
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