Resize and Improve the quality with less time process

[SB4]

Hi,



I have a small video file taken from Aoi Blink series. This file has length of One minute and 19 second i used this filters:

AVISource("oBlink.avi")
lanczosplusv3(1280, 720, cstr=1.5, depth=3)
AwarpSharp2(depth=6)
santiag(strh=2,strv=2)
AAA()
Toon(strength=0.6)
DFTTest()
LSFMod(strength=50)
Levels(0,1,245,0,255,false)

In addition, Used some VirtualDub filters to resize and improve video quality but the process to save the file take too much time about Two Hours to process One minute and 19 second only. Is there any chance to do the same work with a less time process for the hole file about 25 Minutes ?


Original file:
http://www.multiupload.com/G7FLKOXUQ4

Filtered file:
http://www.multiupload.com/TA4L5W8HPG


Best Regards,
SB4

[guns1inger]

Get a PC that is 4 times faster than the one you have now

[jagabo]

You need to get rid of the field blending artifacts first (look into SRestore()). You've also distorted the image (stretched 4:3 to 16:9) and removed all small details. Is that overcompressed Xvid AVI your real source? Or are you starting with a DVD? Something else?

[SB4]

guns1inger maybe i will in the future

jagabo the source file is an MKV file i convert it to avi to work with avisynth filters.
i will see SRestore but first do you think i need all the fiters i use in the script ?!
i don't know alot about avisynth and filters work...

[2Bdecided]

[jagabo the source file is an MKV file i convert it to avi to work with avisynth filters.

You don't need to do that - you can easily load mkvs straight into avisynth using dss2 and the haali media splitter

Cheers,
David.

[jagabo]

the source file is an MKV file i convert it to avi to work with avisynth filters.

You don't need to do that. You can open the MKV files directly with DirectshowSource() or ffVideoSource(). If you still want to convert to AVI first use a lossless codec like HuffYUV or Lagarith.

do you think i need all the fiters i use in the script ?!

I don't specialize in upscaling anime. I'm not familiar with all the filters you're using. You'll need to read up on them. But I think you're using way to much noise filtering. I generally don't consider upscaling worth the time and effort.

I recommend you upload a small sample of your actual source. Maybe someone who works more with anime will have some suggestions.

[themaster1]

You might find this interesting SB4

[jagabo]

You might find this interesting SB4

Keep in mind that most of the sample images in that thread have no texture detail. So they don't suffer from severe denoising. Your (the OP) video has lots of texture detail (the wood grain for example) which gets obliterated.

[poisondeathray]

As suggested, post a source sample

[SB4]

This is a sample file:
http://www.multiupload.com/XU0TA6YV8W

[poisondeathray]

I'm not sure you can do much about the blends, it looks like a blend deinterlace was applied. Maybe others have better ideas how to deal with that

I would leave it as is , or just leave the antialiasing (santiag should be enough)

upscaling doesn't help much here, all you do is waste bitrate (larger filesize required, not "better" quality). Let your player do the upscaling

[jagabo]

This will take care of most of the blends:

SRestore(omode="pp0") #gets rid of blends
TDecimate() #frame from 29.97 to 23.976

If you really want to upscale try nnedi3:

nnedi3_rpow2(2) #2x enlargement, 720x480 -> 1440x960
LanczosResize(960,720)

[SB4]

@poisondeathray
i will do as you said and add just santaig filter

@jagabo
i will use blends filters but i have problem with some parts
of the video look at the image below:

Original image:


Blend image:


Sample file:
http://www.multiupload.com/XZLX6ONFNC

[manono]

Not the same frames. And is that at a scene change?

Deblenders aren't perfect anyway. Sometimes the source is too messed up.

[jagabo]

Those are artifacts from imperfect deblending (and from compression artifacts in the MKV source). I don't think there's anything you can do about them. It's certainly less annoying than the two blended frames in the source:

[SB4]

@manono
I'm sorry it is my mistake. What do you mean Deblenders aren't prefect?!
Do you have other method for Deblenders ?!

@jagabo
Good work i like the result very much. It's the first time dealing with blending artifact

[manono]

Well, they depend on at least one field of a pair being 'clean'. Sometimes you don't get that and they'll pass through a blended and bobbed field as the new frame. If the pattern changes it may take a few frames for it to latch onto the new pattern and you'll get a blended frame or two. Or maybe the pattern is so peculiar that it can't unblend it properly. Sometimes for PAL2NTSC stuff, rather than the usual 2 3 2 2 3 2 3 2 2 3 pattern, you might get 2 3 2 3 2 3 2 2 2 3, weird stuff like that. Sometimes they've been doubly blended and it's hopeless. And there's often the left over 'junk' as you showed in one of your pictures. Don't blame the unblending filter, but the DVD company that produced the lousy DVD.

Any other methods? There are other deblenders but SRestore is about the best, I think, although I often use RePAL for PAL2NTSC stuff.

[SB4]

@manono
Thank you for the information

[jagabo]

Because of the way the MKV file was made some of the original film frames appear only as 50/50 blends with the frames before and after:



The top row is a sequence of 4 frames (A, B, C, D) from the MKV file. Between the original film frames A and D there was a frame X. That frame doesn't appear on its own within the MKV file so SRestore() had to reconstruct it by subtracting half of frame A from frame B, subtracting half of frame D from frame C, then adding those two together.

The artifacts in frame X are partly because the original video contained only fields, not full frames, and because of artifacts of h.264 compression used in the MKV file.

[SB4]

thanks jagabo i like your explanation

[manono]

Oh, it wasn't until I read jagabo's post that I realized it might be that rare form of blending - telecined video that's been blend deinterlaced. I downloaded it and sure enough... And looking farther up the thread, I now see I should have noticed jagabo's script unblending it.

Of course, it just shows you shouldn't download garbage from the Internet as it was obviously made by an idiot who ruined it. With the source DVD available all that would be needed would be a simple IVTC, and then there wouldn't be any of those artifacts and it would be 23.976fps and not 29.97fps..

And my explanation of blended fields doesn't apply to this kind of blending.

And beginning with the most recent NNEDI3, you can now go directly to the final resolution:

NNEDI3_rpow2(rfactor=2,cshift="lanczosresize",fwid th=960,fheight=720)

Although I agree there's no point in doing that, especially with a badly recompressed video to use for a source.

[jagabo]

that rare form of blending - telecined video that's been blend deinterlaced.

Rare? I'd say the majority of NTSC sourced videos I've downloaded or seen on Youtube are like that!

[manono]

Yeah, uploaders to places like YouTube often don't know the first thing about encoding and just deinterlace everything. I'm talking about the retail sources, the DVDs. You can bet the DVD from which that MKV was made wasn't blend deinterlaced.

[2Bdecided]

Yeah, uploaders to places like YouTube often don't know the first thing about encoding and just deinterlace everything. I'm talking about the retail sources, the DVDs. You can bet the DVD from which that MKV was made wasn't blend deinterlaced.

Lots of low-end commercial DVDs contain field-blended standards conversions.

Plenty of people don't deinterlace for YouTube, and upload interlaced video - that's a disaster.

Cheers,
David.