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View Full Version : Ghost effect, right?


mastershion
20th March 2004, 15:13
Hi, i´m new in this. I´m encoding my anime dvd of 3x3 eyes (it´s ntsc), after de-interlace it, remain these double image or some kind of ghost, take a look this image:

http://usuarios.lycos.es/oniworld/3x3.jpg

pleases some idea to fix it? any filter or tool?

i´m encoding from VD with avs generated by GK


thanks.

manono
20th March 2004, 16:26
Hi, and welcome to the forum-

Did you make the .d2v with No Force Film (or Field Operation->None), and then perform IVTC in the .avs? If you did, then the resulting framerate should be 23.976fps, and there should be no ghosts. Or did you just deinterlace it, in which case your resulting framerate is 29.97fps, which is the reason you have blended frames, probably 2 of every 5 frames.

nFury8
20th March 2004, 16:31
Originally posted by mastershion
... (it´s ntsc), after de-interlace it, remain these double image or some kind of ghost, take a look this image:

thanks.
Hi there. From what I understand, you just deinterlaced your source, right? If you intend to restore progressive frame from NTSC sources you're supposed to IVTC (Inverse Telecine). If you're using GKnot to generate your AVS, there's an option for you to telecide or get rid of the extra frames generated in the film-to-video transfer process. So far, the Decomb filter package by neuron2 is the most popular tool for this. Would you mind posting your AVS script?

Cheers
/edit: ooops, manono posted a reply just as I was typing mine. in which case, manono's queries are more detailed and should carry more weight.

manono
20th March 2004, 18:27
nFury8-

You're too modest. Your's was more detailed, and better, too. :)

mastershion
21st March 2004, 03:48
Originally posted by manono
Hi, and welcome to the forum-

Did you make the .d2v with No Force Film (or Field Operation->None), and then perform IVTC in the .avs? If you did, then the resulting framerate should be 23.976fps, and there should be no ghosts. Or did you just deinterlace it, in which case your resulting framerate is 29.97fps, which is the reason you have blended frames, probably 2 of every 5 frames.

yes, i generated a .d2v without Force Film and then with GK I created a avs with IVTC, this is the code:

#
# Created with Gordian Knot
#
# http://gknot.doom9.org
#
# PLUGINS
LoadPlugin("C:\ARCHIV~1\GORDIA~1.27\mpeg2dec.dll")
LoadPlugin("C:\ARCHIV~1\GORDIA~1.27\decomb.dll")
mpeg2source("E:\3X3EYES_VOL1\3x3.d2v")
Telecide().Decimate(5)
crop(12,0,699,478)


and the last step, i encoded it in VD with de-interlaced filter to remove the interlacing, but remain that ghost effect. some idea?

thank you very much for pay attention.

nFury8
21st March 2004, 11:23
@manono
I'm just a Padawan who acknowledges his master's preeminence, if I am to prove worthy of wielding the Force. :D

@mastershion
The only thing i can think of is to try and experiment with the Decimate parameters and maybe Telecide with proper pattern guidance like so:

Telecide(order=1,guide=1)
Decimate(cycle=5,mode= ???) <<<experiment with the mode settings here

You need to refer to the Decomb Reference manual for the different settings as thoroughly explained.

One more thing, when you encode in VD, I don't think you need to use deinterlace filter anymore since you've already IVTC'd with Decomb. And if the above still doesn't help with your problem, why don't you try SmartDecimate? Do a search of SmartDecimate in the AviSynth section of this forum for its proper usage. Good luck.

manono
21st March 2004, 11:46
Yeah, don't use VDub's deinterlace filters. For one thing, it means you're using Full Processing (instead of Fast Recompress) in VDub/VDubMod, which slows the encoding considerably. And Telecide has its own deinterlacer (FieldDeinterlace) turned on by default.

Trying SmartDecimate is a good suggestion, as is tweaking Telecide's parameters. But anime is tough to IVTC sometimes, and often you'll be stuck with some of those blended frames. There shouldn't be too many of them, though. If you don't like blended deinterlaced frames, then you might prefer interpolated ones instead. In which case, you might try:

Telecide(Guide=1,Blend=False).Decimate(5)

And since you don't have Order defined in Telecide, it means you're using an old Decomb (unless you left it out) and an old GKnot, so you might upgrade to Decomb 5.1 (I think it is), and GKnot 0.28.7.2.