Upscaling an interlaced DVD from NTSC to PAL resolution

[jinkazuya]

Well..Recently I have been trying to play with upscaling but the result isn't very pleasant or satisfying. So I browsed around the internet and looked for some guides which could help me a bit. However hardly anything that could help. But there is one website that I found is kind of interesting...The guy who posted the guide out there did an amazing job about upscale, with some filter to make the video crystal clear...But he or she didn't say what filters to use and how to make it. So just wonder if anybody could shed light on it.

This is the website:
http://sharethefiles.com/forum/viewtopic.php?f=24&t=158180

Scroll down to see the picture.

[ajk]

4. Now open Mediainfo and check your VOB files. If you see the source is progressive, choose progressive at AVI Source/DS Source
At the resize filters, choose spline 32. Remember, lanczos( Sharp) can't handle 1280x720 resolution. Only spline 32 and 64 can.

I guess he used Spline32. Though you might have even better success with EEDI/NNEDI interpolation, you'll just have to try and see.

Of course, going from NTSC to PAL will involve some kind of frame rate change as well. Are you absolutely sure you need to do this?

[wonkey_monkey]

Scroll down to see the picture.

The original pic is 1024x576. The after pic is also 1024x576, and it's a different frame of the video :mad:, so it's impossible to ascertain exactly what improvement this guy thinks he's been able to achieve.

At the resize filters, choose spline 32. Remember, lanczos( Sharp) can't handle 1280x720 resolution. Only spline 32 and 64 can.

Not sure what he's on about there, either - of course lanczos can "handle" 1280x720.

As ajk says, be absolutely sure you need to do this. If it's for viewing on a modern TV, they mostly have good deinterlacers and upscalers built in.

David

[StainlessS]

Maybe try Spline36Resize, works much better than Spline32Resize. :)

[kolak]

Well..Recently I have been trying to play with upscaling but the result isn't very pleasant or satisfying. So I browsed around the internet and looked for some guides which could help me a bit. However hardly anything that could help. But there is one website that I found is kind of interesting...The guy who posted the guide out there did an amazing job about upscale, with some filter to make the video crystal clear...But he or she didn't say what filters to use and how to make it. So just wonder if anybody could shed light on it.

This is the website:
http://sharethefiles.com/forum/viewtopic.php?f=24&t=158180

Scroll down to see the picture.

Upscaled image is just oversharpened and looks digital.

[jinkazuya]

Well...I just kinda want to change the resolution and upscale a bit. The resolution of 640 x 480 is not quite big enough to fit the HD LCD TV. Anyway, I also have other reasons for doing this - One for learning and another is curiosity about how people could upscale the video and make it so crystal clear cuz as far as I know upscaling will make the video lose details cuz we have to enlarge the pixels of the picture.

Anyway, I did use NNEDI2 and 3, Spline36Resize, other filters, some of the functions some of you wrote but wasn't able to achieve the quality or even slightly close to what was described above (the pic the guy posted who wrote the upscale guide).
I just want to resize it to 720 x 576, which is the PAL resolution. The original video is of NTSC, which is 720 x 480. Filters I used include finesharp, QTGMC, and LimitedSharpenFaster and so on...

[kolak]

For me example from the link above is just way oversharpened and it's worse than the source (looks digital and fake). Most new TVs will do as good upscale as spline, lanczos etc and some of them have actually very good processing. Only NNEDI can make something better, but in most cases it's not worth the hassles at all.
NTSC to PAL will gain nothing- all what you an do is add some sharpening.
There is nothing more what other people can use- filters and methods, which you can find on doom9 represent the best what you can do and there is not much above NNEDI.

[jinkazuya]

Yeah it is fake and oversharpened and some of you might agree. But as a learning progress, just wonder what he did to make the picture that clear.

A few of the functions or scripts written by some of the video editing professionals do not produce such a result. I am pretty sure some of the experts out here could do or write a script that does this easily and hope them could shed light on this.

[Guest]

He just resized with spline32. What is the big mystery?

The link to the before picture is broken, so we cannot try to duplicate his specific result.

If you can't achieve similar results with your source, then post a sample of it so people here can try.

[Didée]

Looking at those pics, it is quite obvious that not just any XY-resize() was used. The bottomline says
"There is still the need to use some particular script and plugin in avisynth such as IIP etc.",
,hence it seems likely that the demo pic was enhanced with iiP.

And before anyone asks - iiP is literally stoneage tech, and you will most likely not succeed to get it even to run on current versions of Avisynth. Spell "R.I.P.".

[wonkey_monkey]

The link to the before picture is broken, so we cannot try to duplicate his specific result.


I saw the "before" pic before it disappeared. It wasn't even the same frame of the source (it was the same scene, at least, but appeared to be in motion/blurred), so a comparison wasn't possible anyway.

David

[Guest]

The bottomline says
"There is still the need to use some particular script and plugin in avisynth such as IIP etc.",
,hence it seems likely that the demo pic was enhanced with iiP. It's ambiguous. I read it as "we could make it even better if we applied these other things too".

[jinkazuya]

Here is the link...Pretty Please, hope somebody could help and shed light on this.

http://www.putlocker.com/file/CFB6606659F9F619

[Guest]

Just to be sure...you're trying to resize this to PAL, i.e., 720x576?

[jinkazuya]

Yes...That's right Neuron2. Hope you and some other members could help out. What I would like to do is just resize the resolution.

[Guest]

OK, I assume you are willing to crop to avoid black bars. If you prefer letterboxing, then just use addborders() and don't resize at all.

Is this good for you? I'm sure Didée can do it much better. :)

[jinkazuya]

Thanks Neuron2, but is it possible to make it look something like the picture that the guy did with his video from the above mentioned website? I know it is hard to duplicate the similar result eps different videos have different bitrate and quality and besides we are not sure what filters he used. But I really hope we could come up with something which could achieve a similar result. This is what I am trying to learn.

BTW which resize filter did you use?

[Guest]

Ah, you want it oversharpened?

[jinkazuya]

Awesome Neuron2!!! This is truly something. What filters did you use? I am pretty sure we could fine-tune the video (get rid of a bit of the jaggy edge) and we could get the fantastic result.

Anyway, would you please tell me how you did it? :script: :p

That is pretty amazing.

[Guest]

Make a project with Force Film in DGIndex to perform the IVTC. Then use this script:

loadplugin("DGDecode.dll")
mpeg2source("83.d2v")
eedi2()
spline36resize(864,576)
crop(72,0,-72, 0)
MSharpen(15,70,true,false,false)
sharpen(1.0)

It's just something I cobbled together. I'm sure things could be better. It's clear from your last post that you like oversharpening, so just go pedal to the metal on any sharpener and you'll probably be happy.

[jinkazuya]

Thanks so much!!! I will try to play around with other filter and see how that turns out.

[manono]

It's ambiguous. I read it as "we could make it even better if we applied these other things too".
It may have been ambiguous, but the guy lifted his before and after pictures from the IIP thread here:

http://forum.doom9.org/showthread.php?p=615990#post615990

[Guest]

Nice find!