Restouring Anime

[LeoHenrique]

I uploaded a "encode" with Virtualdubmod.

It's real raw, the resolution as kept as the original.

Avisynth I read that has awesome things, and I want make it upscale to 720p.

Here's the link: http://www.sendspace.com/file/l9bghf

The audio is a bit low imo too.

[jagabo]

Try something like:

AviSource("Sample_DVD.avi", audio=false)
ColorYUV(gain_y=30, gamma_y=-30, off_y=-2, off_u=5, off_v=-9)
Deen()
TTempSmooth(maxr=5, lthresh=20, cthresh=20, strength=5)
DFTTest(sigma=32,sigma2=32)#, lsb=true)
Nnedi3_rpow2(2)
BicubicResize(960,720)
AwarpSharp2()

[LeoHenrique]

could you upload a screnshot?

[jagabo]

Before:


After:


Note the JPG compression added a bit of mosquito noise. Click on the images to see full size versions.

You might try adding Stab() to remove some of the film bounce.

There are others around here that are better at this than I. Maybe one of them will post over the next few days.

[LeoHenrique]

Thanks ^^

[AlanHK]

See http://www.aquilinestudios.org/avsfilters/index.html
A bit old, but mostly good advice on when and how to use filters.

[dragonkeeper]

Good work and welcome to the world of Avisynth.
But the image looks a bit soft to me. It's most noticeable in the spirals on his glassess and the tip of the extended finger. Over all it seems the edges have become a bit thinner. From the drawing style this appears to be an older series and will no doubt even the DVD has a considerable amount of niose.

1. I see in the ColorYUV filter you did not specify "opt=coring" be aware this can lead to invalid TV-ranges, (not a problem if you only plan to view these on your PC). I personally prefer Tweak over ColorYUV.

2. Verify the video is interlaced. Most DVD were progressive, if this was ripped from a DVD you most likely do not need the Nnedi3 filter.

3. Deen, for all intended purposes is a combination of multiple smothers/de-noisers, you then proceeded to add additional smothers to your script.

For old anime try something along these lines.

AviSource("Sample_DVD.avi", audio=false)

#VMtoon only works on the YV12 color-space
ConvertToYV12()

#adjust the hue, saturation, brightness, and contrast
Tweak(hue=0.0, sat=1.1, bright=0.3, cont=1.1)

#super sampler, Smother, edge shapener/thiner designed especially for anime.
vmToon(strength=100, luma_cap=150, threshold=2, thinning=100, ssw=3,ssh=3)

#spline36 is better when up-scaling video
Spline36Resize(960,720)

This is the best i can do with out seeing the actually source.

[poisondeathray]

2. Verify the video is interlaced. Most DVD were progressive, if this was ripped from a DVD you most likely do not need the Nnedi3 filter.

He's not using NNEDI3 to deinterlace, it's used to upscale in that example. A straight spline36 or bilinear will more cause aliasing than upscaling with NNEDI3

He could have used fwidth and fheight in nnedi3_rpow2

nnedi3_rpow2(rfactor=2,cshift="spline36resize", fwidth=960, fheight=720)

=> in this case spline36 is used to downscale the image, because it has been upscaled to 1440x1152 by NNEDI3

[manono]

1. I see in the ColorYUV filter you did not specify "opt=coring" be aware this can lead to invalid TV-ranges, (not a problem if you only plan to view these on your PC).

Not a problem on a TV set either, assuming the DVD player passes 'whiter-than-white' and 'blacker-than-black'. There's nothing at all 'invalid' about having pixels outside of 16-235. If you check, most retail DVDs have it. It's only if you get massive amounts of the stuff should you try and do something about it (and not by coring either). But if there's a lot, it's often too late. I'd much rather have a bit of the stuff than to clip it all to 16 and 235 by using coring. Read the Blacker-than-Black section about three quarters of the way down this page:

http://www.hometheaterhifi.com/volume_10_1/dvd-benchmark-guide-to-progressive-scan-sho...ut-1-2003.html

The range of levels from 16 - 235 is where the bulk of the picture information is placed. The extra 34 levels are there for head and room toe room. Real world images contain scattered blacks (Levels 1-15) and whites (Levels 236-254).
.
.
.
We believe that a digital representation of a 'natural' image requires a signal range beyond the nominal 'black' and 'white' points to look 'natural'.

And since Tweak uses coring by default, when using it one should add 'Coring=False' in my opinion.


It's already in YV12, both the source DVD as well as the XviD sample made from the DVD, so you don't need the ConvertToYV12() line in the script.

[LeoHenrique]

It think that it is a bit interlaced, btw I'll try some things there. Thank you!

Then I'll post my results, I'am a pretty novice at Avisynth

I can't load vmToon even with a load plugin...

[jagabo]

I think it's a waste of time upscaling from 576p to 720p. The video isn't in such bad shape. I'd leave it as it is.

And by the way, it's always preferable to upload the original source, not a (re)compressed version.

[LeoHenrique]

a vob lol?

[El Heggunte]

a vob lol?

Usually, a 10-second .M2V is more-than-sufficient for a quick evaluation or diagnosis.

Note the JPG compression added a bit of mosquito noise.

Note PNG compression is lossless.

[LeoHenrique]

I can creat it with meGui?

[jagabo]

Use DGIndex to demux a segment from the VOB. Open the file, mark-in, mark-out, File -> Save Project and Demux Video. Then upload the M2V file.

[LeoHenrique]

Here's the m2v file

http://www.sendspace.com/file/3a97cd

It's another sequence.

[manono]

He said to upload the M2V file, not 2 AC3 files and a D2V project file.

And you don't need to RAR it up.

[LeoHenrique]

http://www.sendspace.com/file/ykt4sz

Here's it

[2Bdecided]

It think that it is a bit interlaced

Yes, it is - or at least, it has a strange pulldown pattern. Telecide() seems to fix it.

I tried eedi2, spline36resize, and limitedsharpenfaster, but wasn't convinced by the results.

Cheers,
David.

[jagabo]

Yes, it does have some interlaced frames. TFM() works too. The clip has a wider dynamic range so brightness and contrast adjustments aren't necessary.

Mpeg2Source("VTS_03_2.demuxed.d2v", CPU=6)
ColorYUV(off_u=5, off_v=-9)
TFM()
Deen()
nnedi3_rpow2(rfactor=2,cshift="spline36resize", fwidth=960, fheight=720)
AwarpSharp2()

[LeoHenrique]

I can't use Mpeg2Source |:

[manono]

I can't use Mpeg2Source |:

Do you have the DGDecode.dll in your AviSynth Plugins folder? If not either put it there or add it into the script with a LoadPlugin line. It's part of the DGMPGDec package. And you also have to make a D2V Project file - a D2V - like the one you first uploaded along with the two audio files.

[LeoHenrique]

I'am testing the video in VirtualdubMod

[manono]

Meaning what? That you're just opening a VOB? Don't do that. Open an AviSynth script. If you can't figure out the error message, post your complete script and the complete error message.

[LeoHenrique]

actually the .avs

[jagabo]

I'am testing the video in VirtualdubMod

You still have to have DgDecode.dll in your AviSynth plugins folder if you want to use Mpeg2Source() in AVS scripts. And, of course, you have to have AviSynth installed.

[LeoHenrique]

I get it, whre I can download nnedi3_rpow2 and Awarpsharp?

[manono]

NNEDI3:
http://web.missouri.edu/~kes25c/
AWarpSharp:
http://avisynth.org/mediawiki/External_filters#Sharpeners

[LeoHenrique]

The lines are too thin for my tastes

[manono]

Maybe try the FastLineDarkenMod:

http://forum.doom9.org/showthread.php?p=1060081#post1060081

Or the darkening part of vmToon:

http://avisynth.org/mediawiki/External_filters#Linedarkening