Need Help To Improve Quality

[MajorX]

Is this video need some filter to improve quality because i think there is something wrong with video but i can not understand what.If it need any filter Please suggest me.

Link to Sample (http://demo.ovh.com/download/f9df15189f41feb5f4d9ca2bd015a580/Sample.mkv)

http://img261.imageshack.us/img261/4983/sample1p.jpg

[Ghitulescu]

Define quality or improve quality.

[zmaster]

MajorX,
Your segment of video does not play me (black screen).
Judging by the screenshots here to make a general noise filter and sharpening (fft3dfilter), use a filter removing the "ladder" (AAA), probably should sharpen the deformation (aWarpSharp) ...
It would be better if it loaded the business segment of video, then we could have been more accurate to deal with the filtering.segment of video does not play me (black screen)Filter the source revealed. I try to play with filtration ...

[Hagbard23]

Looks like ugly DOT-CRAWL (http://en.wikipedia.org/wiki/Dot_crawl) - you can come by with :

Checkmate (http://mf.creations.nl/avs/filters/checkmate.dll)
DeDot (http://nullinfo.s21.xrea.com/#DeDot_YV12 - beware - its a language i do not know... ;) ) or
GuavaComb (http://avisynth.org/warpenterprises/files/guavacomb_25_dll_20030801.zip)

For detailed Anti-DotCrawl-Guide look here please: http://www.aquilinestudios.org/avsfilters/dotcrawl.html

After that i would use LSFMOD to polish the image up a bit. I would use Supersampling (ss_x=2,ss_y=2) and a Strength of >150 - the other parameters must be tweaked out.

Maybe the http://avisynth.org/mediawiki/VmToon - Plugin is something for you - it sharpens, darkens lines and supersamples. But i have no experience with that..

Keep in mind:
general noise filter and sharpening (fft3dfilter), use a filter removing the "ladder" (AAA), probably should sharpen the deformation (aWarpSharp) ...

with that - you only attack the symptom, not the cause of the mess-up!

Do not use denoisers and AAA-Filters to the problem - it does not fit and you only wash your image out..

[zmaster]

with that - you only attack the symptom, not the cause of the mess-up!Looking at the screenshot at first I mistook for aliasing. Ok, AAA not needet. But
Do not use denoisers... to the problem - it does not fit and you only wash your image out..It would not have prevented the clean image with dfttest and fft3dfilter before producing supersampling. I liked the result of applying filters, even with standard settings:
dfttest()
FastLineDarken() #This is desirable.
fft3dfilter(sigma=2, plane=4)

[MajorX]

Thanks Hagbard23 and zmaster for help. I will try with these filters today.

@zmaster
segment of video does not play me (black screen)

Should i upload new sample file?

[zmaster]

No-no, the file is not opened in my player, but I was able to open it in AviSynth. I used filters denoisers (I have them pointed out(Do not use the AAA, here it is not needed. To remove noise "dot crawl" Use the information from Hagbard23.)) on your video and I liked the result of their work. Try it and you.

[MajorX]

I use filters one by one provided by Hagbard23 i see only Checkmate gives some good result.

what value i use in Checkmate?
I use this value for testing
checkmate(thr=900, max=950, tthr2=900)

Without Checkmate:

http://img840.imageshack.us/img840/9533/95298258.jpg

With Checkmate:

http://img842.imageshack.us/img842/7138/aathemelodyofoblivionep.jpg


But it also not completely remove dots.

My script:
LoadPlugin("C:\Program Files\megui\tools\avisynth_plugin\checkmate.dll")
LoadPlugin("C:\Program Files\megui\tools\ffms\ffms2.dll")
FFVideoSource("E:\Sample 2.mkv")
checkmate(thr=900, max=950, tthr2=900)

[Ghitulescu]

I'm not an expert in H.264 (x264) nor in anime. The dots that appear at the net separation (antenna, hair) look to me more like a compression artefact (maybe due to a sharpening in the preprocessing part), in opposition to the red dot crawling which can be associated with the initial processing in the analog domain. I haven't seen any dots like the former on any of my anime DVDs (they suffer from other issues). Are both dots visible on the DVD?

[Hagbard23]

Maybe some post-AntiAliasing fixes the problem, but i do not know. Try setting higher Values for Checkmate first and look if it is suitable. If not, give Supersampling (inside LSFMOD or VMTOON) a try - if that fails, then try a pure Anti-Aliasing and look if it fits.

If Not, then give FFT3dGPU Denoiser a Try and see what you can tweak out.

But: You will never get rid of DotCrawl completely - some artifacts will remain with every Anti-Dot Filter.

A Try would be:

Loadplugin(blah)
~
Checkmate(parameters)
FFT3dGPU(parameters)
LSFMOD(parameters w/ supersampling)
Antialiasing(if needed*)

[Blue_MiSfit]

When doing dot crawl removal (checkmate et al.), remember you need to run the filter on the raw interlaced source - pre deinterlace / IVTC. Otherwise, it won't be nearly as effective (if at all).

Derek

[MajorX]

ok i want to use AnimeIVTC with checkmate but i never use AnimeIVTC before so face some problem please help.
I read AnimeIVTC abstract and Put all the .dll/.avsi in the "plugins" folder of avisynth but i get some error .

I try AnimeIVTC and here the script i use

LoadPlugin("C:\Program Files\megui\tools\avisynth_plugin\checkmate.dll")
LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\TIVTC.dll")
LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\RemoveGrain.dll")
Import("C:\Program Files\AviSynth 2.5\plugins\SRestore.avs")
DirectShowSource("E:\Sample 2.mkv", fps=23.976, audio=false, convertfps=true)
checkmate(thr=50, max=100, tthr2=100)
AnimeIVTC(mode=1, chrfix=true, aa=1, omode=1, credconv="blend", e1=40368, i1=42723, e2=43469)

Error i get :
It's not 30fps NTSc nor 25fps PAL...

If i use AnimeIVTC in wrong way or any error in the script please tell me what is it and how to correct it or how to use AnimeIVTC?

[Ghitulescu]

One can use animeIVTC on NTSC sources only. Yours has already been IVTCed. If you want to perform it use it on the DVD not on the MKV.

[MajorX]

I try with some other filter and i get good result but the output looks more blur type :(...can i correct this mean can i reduce this blur ?

I use this script:
LoadPlugin("C:\Program Files\megui\tools\avisynth_plugin\checkmate.dll")
LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\RemoveGrain.dll")
LoadPlugin("C:\Program Files\megui\tools\ffms\ffms2.dll")
FFVideoSource("E:\Sample 3.mkv")
RemoveGrain(12)
checkmate(thr=100, max=500, tthr2=10)

Without Script:
http://img413.imageshack.us/img413/2275/79005567.jpg

With Script:
http://img826.imageshack.us/img826/7033/70452206.jpg

Without Script:
http://img826.imageshack.us/img826/9200/27695053.jpg

With Script:
http://img826.imageshack.us/img826/3141/68073023.jpg

[Hagbard23]

yes, you can. Either you can use LimitedSharpenFaster (-Mod) for excellent sharpening without noise amplification or you can use SeeSaw (more Sharpening/little Noise Risk).

If you prefer a fast sharpening way you can give WarpSharp (different versions outthere...) a Try.

TiP: If you use Removegrain anyway, then it might be useful to limit it in someway. LimitedSharpenFaster(-mod) does that anyway (it works internal with removegrain modes 11 and 19 ) This gives you the benefit, that (hopefully) Grain is only removed, where it is considered to be, it does not affect the whole frame (again, hopefully) AND the sharpening is really HQ (you can switch supersampling on to avoid aliasing due to sharpening, which is, what i believe suitable for your source)

TiP 2: Try Removegrain(mode=17)

[MatLz]

Why do you work on a lossy recode of the dvd instead of the dvd itself ???

[Ghitulescu]

:) Guess why.

[MatLz]

http://ups.imagup.com/ano1/1286653466.png ?? That can't be !

[Hagbard23]

To me it doesn't matter...please stop spamming around...noone can prove those indulgements...:sly:

[MatLz]

THREE unanswered/ignored questions about his (legit) source.
Just suspicious...

[Ghitulescu]

To me it doesn't matter...please stop spamming around...noone can prove those indulgements...:sly:

He had no idea whether the DVD the anime originates has the dots problems.
He had no idea how the encode was done.
He has no idea that the material was already IVTCed.

And we may add what MatLz just told.

[Usedocne]

@MajorX

If your going to ask about filtering any questionable sources in the future, you might wanna ask over at either D10, or Videohelp. Or at least not make it so obvious "here" next time. ;)

[MajorX]

I have very little idea about encoding. I never encode anything like this mean cleaning video quality of dvd.
My source is DVD R1 of Boukyaku no Senritsu(anime) and the whole dvd contain this type of dots so i can't watch this on my dvd player so one of my friend told me i can clean these dots and can watch on my pc so i encode by handBrake 0.9.4(with help) but nothing correct. That friend told me to ask here so why i ask here.
Thanks for help.
and sorry for this .... now i never ask anything here.

[Ghitulescu]

So why did you not post a sample from your DVD instead of a dubious MKV? Doom9 is one of the few fora where one can go "deep into the matter" ;) and we like to keep it like that.

[MatLz]

If you post the same VOB or M2V, I will apologize and offer help (even if, BTW-OOT, I think Melody of Oblivion is one of the crappiest anime ever released ;) )

[Hagbard23]

Your posts are just ennoying Mat & Ghit...stop posting spam all around. If you feel offended by videodata posted here, then please move your back to the mod, so that he can take care of this issue.

Man, man, man - Do you have nothing else to do, than posting such crap? What about some -useful- information? What does it matter to you both, what source the Th.Starter posted? Pushing noobs around or what? Go and tell it to the chief, you kids...

[MatLz]

If you want to fix a dvd problem, you need to work on the dvd.
Not on a lossy recode with more artifacts.

The basis.

[Hagbard23]

So what...?

If you refuse working on non orig. DVD-Data, then do NOT POST!!! Just go away .. maybe to other threads, where everything is to your convenience.

You are disturbing new users and me too...

[Ghitulescu]

I stopped giving him any advices after I noticed that he completely avoids any discussion upon the source of the anime. Because any helper may be subjected to strikes under Rule 6. I did not attacked MajorX, I simply stated my opinion, should any mod come to the conclusion that the source might be illegal. Is not suspicious that one complains about the quality of a DVD but works on an MKV instead of the DVD?

Even the final answer of MajorX slightly confirmed my suspicions. The anime as it stands is quite good in quality (compared to similar animes of the same period), I simply do not see what defects could have that makes it so unwatchable.

Then came the alleged "no idea", yet he's perfectly capable of giving an advice here -> http://forum.doom9.org/showthread.php?p=1402377#post1402377.

And you should know that there are competitions: who has posted the most animes in various fora and on youtube. On top of that comes the fansubbing community and the AMV creators (they pick the latest music piece and combine it with anime sequences). Prerequisites: fast & best & smallest size, mainly one-click-no-brain-best-quality-freeware, how to put subtitles (the audio being JP) and how to put a logo (so the competition would know who's the new kid on the block), of course burnt-in (not so easy removable).