Quick Deinterlacing Question...

[Guest]

Originally Posted by LoRd_MuldeR

But basically the idea of an Inverse Telecine filter is to restore full frames by merging fields in the correct order/pattern, instead of interpolating.

That's an arbitrary limitation. Why would you not want to have useful functionality included?

If there's an (additional) post processor in Decomb Telecide to catch remaining combing artifacts, good.

If?! What are you talking about? I just told you there is one and you acknowledged it in your post.

If you know a better one (maybe Decomb Telecide's post filter can be tweaked to give better results on LeoH's source), I think it would be welcome

This looks very good to me on the sample:

telecide(vthresh=30)

BTW: TDeint has a similar option to only process "combed" frames, so it can act as a post-processor too

Yes, but Decomb was first.

[LoRd_MuldeR]

Originally Posted by neuron2

That's an arbitrary limitation. Why would you not want to have useful functionality included?

I just explained how IVTC works by definition:

Instead of interpolating one field (as a deinterlacer would do) it re-orders the fields according to a pattern in order to reconstruct the original progressive frames.

Everything that goes beyond that is post-processing, not plain IVTC. But I never doubted that such post-processing is useful

Originally Posted by neuron2

If?! What are you talking about? I just told you there is one and you acknowledged it in your post.

If you quote me, please don't pick out fragments and put them in the wrong context.

In my previous post I already admitted that I had missed the post-poressing part of Decomb Telecide before. And I made clear that I now understand it is there (for a good reason).

It should have been clear that the "if" statement in my post evaluates to TRUE. No need to nag around on this any further

[Guest]

Originally Posted by LoRd_MuldeR

If you quote me, please don't pick out fragments and put them in the wrong context.

I didn't do any such thing. Why would you say "if" when you already knew it was true? Some strange psychology? Decomb has been around for over half a decade; its functionality is well known. Why would you try to obfuscate this?

[LoRd_MuldeR]

As my statement was pretty clear in the original context, I won't further comment on this. We all know what was meant now

Back to topic:
telecide(vthresh=30) seems to give much better results. But I'm not sure whether I prefer that over the Yadif version...

[smok3]

Originally Posted by LoRd_MuldeR

I think the problem is that "wobble" effect in your source

Even if the fields are merged in the correct pattern, they don't fit perfectly together, because of these distortions.

Maybe the "correct" solution would be to shift each odd (even) line horizontally until it fits...

i believe somebody wrote a TBC (time base corrector) like function once (never tested it thought) and i'am not sure if it would really help here.

[EasyRider_]

Originally Posted by LoRd_MuldeR

http://www.mediafire.com/?yaykindhzeq

WOW..!! Great job! respect..!!

[LoRd_MuldeR]

Originally Posted by EasyRider_

WOW..!! Great job! respect..!!

The screenshot was intended to show the color ghosting that is present in the source clip

[LeoH]

I'm pretty satisfied with the results of combining Decomb Telecide with Vinverse. The post processor in DT doesn't seem to quite catch all the combing leftovers on it's own, so I turned it off and just used Vinverse for cleanup.

AssumeBFF()
Telecide(guide=2,post=0,vthresh=30,show=false)
loadplugin("vinverse.dll")
vinverse()

Here's a resulting frame:


Now when I tried only using Telecide and it's post processing, the results weren't as good (IMHO). Notice around the edge of the glasses...

AssumeBFF()
Telecide(vthresh=30)



If there was some filter to fix the field "wobble" or distortion, so that they lined up nice and even, I would gladly try it rather than use Vinverse (which I understand is simply a blur/sharpen routine). So far this is the best I've found.

Hope everyone's having a great Sunday - and thanks for the help and suggestions.

[EasyRider_]

Originally Posted by LoRd_MuldeR

The screenshot was intended to show the color ghosting that is present in the source clip

Ok.. but i also see the deinterlacing result..

http://www.mediafire.com/?yaykindhzeq

[SuperLumberjack]

Hello everybody

I'm looking for a specific kind of deinterlacing method.

In fact, I want an adaptative method which is mixing the Bob and the Weave method.

Here it's explained :

https://www.100fps.com/

Analyzing the two fields and deinterlace only parts which need to. The main difference to "Area based" is that it gives you a 50fps movie instead of a 25fps movie, thus leaving you with perfect fluidity of motions. To say it more academically: High temporal and vertical resolution.

This is my method of choice. You can achieve this with freeware. Read the advantages and drawbacks on this site.

Something like the Framemeister XRGB-mini does (I don't know if it's the same method) is interesting me too :

https://shmups.system11.org/viewtopi...50&start=10200

The Framemeister by default will do a per-pixel motion adaptive deinterlace, which basically means that when stuff isn't in motion it does a weave de-interlace, and when stuff is in motion it does an interpolation-based deinterlace. This preserves both the smoothness of moving objects and the sharp detail of non-moving objects. The framemeister also supports an OSSC-like bob deinterlacer in certain modes.

I precise that I'm not looking for something like Nnedi3 or Eedi3

I just want to test these kind of specific methods.


Thanks for your help !

[SuperLumberjack]

Here we can see the very good deinterlacing method of the XRGB-mini Framemeister with 480i content :

https://youtu.be/nbCt9_87hBo

Compared to the Bob method of the OSSC :

https://youtu.be/ZMdRZCMBI-k

I really think that the method of the Framemeister is impressive !

Is there a way to get a similar method with AviSynth or a VirtualDub filter ?

Thanks for your help !

[videoh]

Originally Posted by SuperLumberjack

Is there a way to get a similar method with AviSynth or a VirtualDub filter ?

You have been describing adaptive deinterlacing. There are already many adaptive deinterlacers for Avisynth. If you want the gold standard, go with QTGMC.

[SuperLumberjack]

OK. Thanks for your answer !

[SuperLumberjack]

The QTGMC looks very impressive !

But a bit complicated and slow. Yadif isn't bad with double framerate either and less complicated

I tested another surprising deinterlacer called "Smooth Deinterlacer". We can find it here :

https://www.guthspot.se/video/AVSPor...hDeinterlacer/

So we can use this function for the best :

SmoothDeinterlace(tff=false, doublerate=true)

or

SmoothDeinterlace(tff=true, doublerate=true)

It's a mix between bob and weave deinterlacing.

[Groucho2004]

Originally Posted by SuperLumberjack

The QTGMC looks very impressive !

But a bit complicated and slow. Yadif isn't bad with double framerate either and less complicated

QTGMC may be a bit slow but this reputation is largely based on users who think "placebo" presets are necessary. "Medium" preset already produces decent results and is reasonably fast.
Also, quality-wise, TGMC/QTGMC blows everything else out of the water, see this clip.
Lastly, there's nothing complicated about QTGMC - pick a preset and let it do its thing.

[SuperLumberjack]

OK. Thanks ! I think I will try !

No, in fact, I was just too lazy too download the plugins required ! It's the complicated thing !


P.S. : Does the QTGMC automatically detect if it's BFF or TFF in the source ?

[SuperLumberjack]

There are so many plugins to install. Each time I get a new error from VirtualDub

It would have been cool to put them all in one pack with the QTGMC...

Sorry, even if I'm not completely a noob, I'm still a noob !


Edit 1 : I don't understand what I'm supposed to do with the files from the "FFTW3" archive... So yes, it's a bit complicated with all these plugins. It's why I was lazy !

Edit 2 : I said nothing ! https://forum.doom9.org/showthread.php?t=156028

[SuperLumberjack]

I get this error :

Avisynth open failure:
FFT3DFilter: libfftw3f-3.dll or fftw3.dll not found. Please put un PATH or use LoadDll() plugin

I placed the files "libfftw3f-3.dll" and "FFTW3.dll" in the SysWow64 folder, but it doesn't work.

[SuperLumberjack]

Sory, I used the x64 version of VirtualDub instead of the x86 !

But with the 32 bit version, I still have an error :

Avisynth open failure:
Script error: mt_lut does not have a named argument "use_expr"
(C:Program Files (x86)/AviSynth+/plugins+/SMDegrain.avsi, line 737)
(C:Program Files (x86)/AviSynth+/plugins+/QTGMC.avsi, line 494)

[StainlessS]

looks like maybe old version masktools.

EDIT: looks like use_expr also requires Avs+. [uses avs+ Expr() ]

EDIT:

Pinterf Masktools:- https://github.com/pinterf/masktools
AviSynthPlus_3.4.0_20191020.exe:- https://github.com/AviSynth/AviSynthPlus/releases