Filters LanczosResize and Convolution3d

[maurus]

I ask for the convenience to use this Avisynth's filters (editing .avs manually with button Edit) in Gordian Knot.

Thanks.

[N_F]

I think I get your point, but it's probably a good idea editing your post and try to clarify what you're after.

[manono]

Playing it safe, eh N_F? At the risk of completely misunderstanding, I'll take a stab at it.

As you know, maurus, you can edit the .avs in both GKnot, or later on in Notepad. If you installed the latest GKnot 0.27 with the System Pack, then LanczosResize is already included in the version of AviSynth you installed. So, just erase whatever resizer you chose and replace it with LanczosResize. As for C3D, put the .dll in with the other .dlls in the GKnot folder, and erase one of the Plugins you're not using in the .avs, and replace it with the C3D plugin, and add the C3D line somewhere in the .avs. Not too difficult.

[maurus]

Thanks, but i want know if this filters aren't good quality for DivX, best the ones included by default in Gknot.

(:( , my english is poor)

[manono]

Well, you were right in waiting N_F. I guessed wrong.

So maurus, in my opinion, LanczosResize is similar to, but better than the SharpBicubic included in GKnot.

In my opinion, C3D is similar to, but better than the Medium or Heavy Noise filters included in GKnot. And you might try FluxSmooth also. It's faster than C3D and also does both spatial and temporal smoothing.

But that's just my opinion, is not meant to be taken as Gospel, and others will surely have different opinions.

[Outsider]

@manono

What set of filters do you prefer to use on a 1 CD rip using divx5? Didn't you once say you liked using a Neutral filter with C3D? What else does a "Pro" like you use?

I've also had luck with C3D and Lanczos, on 2 CD rips. Im one of the few that use QPEL, if the bitrate is over 1000. Im still iffy about GMC as I have seen improvement in some rips using it, but I have seen the jerky playback problem as well.

Thanks for your time!

:devil:

[manono]

Hi Outsider-

Well, as an example. Today I did a 1 CD rip of a noisy 103 minute movie. I used this .avs. It looked as if it had been converted from a PAL master (even though it was originally a Japanese NTSC movie) as the interlacing followed a 6 frame pattern. In addition, it hadn't been telecined properly, and often there were 5 out of 6 frames interlaced (to help explain the weird Decomb settings for an NTSC R1 DVD):
LoadPlugin("C:\DIVXST~1\GORDIA~1\mpeg2dec3.dll")
LoadPlugin("C:\DIVXST~1\GORDIA~1\decomb.dll")
LoadPlugin("C:\DIVXST~1\GORDIA~1\FluxSmooth.dll")
LoadPlugin("C:\DIVXST~1\GORDIA~1\TemporalCleaner.dll")
mpeg2source("D:\Kids Return\Kids Return.d2v",lumoff=-2)
trim(0,181478)
crop(32,50,676,376)
Telecide(Guide=3,threshold=5,dthreshold=5).Decimate(6)
AssumeFPS(25)
TemporalCleaner()
BicubicResize(576,352,0,0.6)
FluxSmooth(7,3)
That gave me an average quant of 2.526 (but using XviD). I did the second pass over again without using FluxSmooth. I think the use of the temp smoothers twice was giving me moving backgrounds. Running the second pass again without FluxSmooth gave me an average Quant of 2.841, and it looked a bit better so I kept that one.

As for the resizer. I'd like to use LanczosResize more often, but unless it's a fairly compressible 2 CD rip, I don't. I'll take the resolution higher first, and if it's still decently compressible, then I'll put on LanczosResize. But since XviD with the MPEG matrix produces a sharper picture than DivX5, I would definitely be using LanczosResize more often in DivX5 in order to keep as much sharpness as possible. Just my opinions-take them with a grain of salt.

[OvERaCiD23]

Originally posted by Outsider
@manono

What set of filters do you prefer to use on a 1 CD rip using divx5? Didn't you once say you liked using a Neutral filter with C3D? What else does a "Pro" like you use?

I've also had luck with C3D and Lanczos, on 2 CD rips.

Excuse me for butting in, but I thought I'd chime in as well. When using C3D, I never use below Neutral Bicubic. Using Soft/bilinear/simple resizers (with C3D) just makes the picture too blurry. I'd rather drop the resolution a tad to obtain better compression.

C3D before Lanczos on 2 CD rips is an awesome combination. I use it for a good majority of movies(nearly all my rips are 2 CDs w/ AC3 sound). C3D (preset=movieHQ) cleans up all the noise and gives that extra bit of compression I'm looking for. Since DivX5 isn't as sharp as I wish it to be, Lanczos is almost a necessity.

also, TemporalSmoother(2) before C3D can aid compression quite nicely as well for 1 CD rips. I haven't gotten around to using some of the diffrent filters in AviSynth, but I've heard good things about a few of the above mentioned ones.

[Outsider]

QUOTE]Excuse me for butting in, but I thought I'd chime in as well.[/QUOTE]

No problem OvERaCiD23, it's always good to hear about different combinations of filters. Haven’t had a chance at using TemporalSmoother(2) yet. Think I will give it a try tonight.

@Manono
Thank you for the reply!


:devil:

[OvERaCiD23]

I just tried FluxSmooth for the first time (this post inspired me to stop being lazy and try it), and I must say it produces nice results. NoMoSmooth as well produces nice results, less blurry than C3D (slightly), 1-2fps faster, ranks right up there with C3D. I'll have to play around a bit more with the parameters for these new filters, but now I'm going to have a hard time deciding which to use.