Filtering Great Teach Onizuka

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DJ_Izumi
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Filtering Great Teach Onizuka

Post by DJ_Izumi » Sun Jul 31, 2005 12:18 am

Well, the GTO DVD's arn't exactly 'Shiney and clean' if you know what I mean. I was wondering if anyone had any advice on filtering to use to clean up the episodes for use in an AMV, or previously used AVISynth scripts that I could make use of.
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Dannywilson
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Post by Dannywilson » Sun Jul 31, 2005 12:37 am

Onizuka suffers from the same problem as the old Evangelion DVDs: mainly it was recorded _back_ from and analog source to the Mpeg2s. Therefor it's nearly impossible to IVTC correctly. In cleaning up the actual footage after you de-interlace it... well I would use heavy W3d Deen and mftoon(strength=[128-200]) (choose a # that best fits what you're working with). I used to use the Vdub cartoon filter but mftoon has surpassed it and requires no use of a 3rd vdub step.

Hope I was helpful.
"in the morning when i have wood..i like to walk around my house and bump random shit with it.... " -Random comment on grouphug.us

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shakespeare
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Post by shakespeare » Sun Jul 31, 2005 7:43 pm

Well, like most pre-digital stuff, ya, GTO suffers from alot of things....

Before the dawn of the digital age, alot of source material suffers from things like telecine glue on the frames, and they also tend to shake alot due to the fact frames couldnt be lined up perfectly before going through the telecine process.

The best way ive found to to correct problems like this is a pretty long and mind numbing process, but it does give near perfect results. I think the thing to do is process ure vob (i assume ure working right off the dvd) through a program called dvd2avi. This will give ya a .d2v file for ure video stream.

Using another handy little program called TMPGEnc, u can then open the .d2v, an in the inverse telecine options, u can dial the footage back to 24fps. (good idea since tv's are 30fps, but monitors are generally 24fps) Once its been IVTC'd, u also have the option of scrolling through the footage 1 frame at a time, and it will show you which ones it will use in the output process. U can look at each one in turn, and if u find a couple that dont line up, u can substitue em for ones that do.. same idea for frames with telecine glue on em, u can switch em with ones that dont. Again, ya, this takes a long time, but i think the end result is worth it.

Once ya finish up that, u save the project in TMPGEnc, and it will give ya a .tpr file. Ya can open that with a program called AviUtl and it has all kinds of friendly options for such things as resize, cropping, an color correction. Save it agian there, an u get an .aup

Run the .aup through a framserver like VFAPI to get a "fake" .avi u can then open with virtualdub an process with ure AVS script or VDub filters as per usual.

Like I said, it does tend to take a long time, but for the older non-digital stuff, it will produce a flawless result.

( ps: all programs mentiond are available from www.doom9.org )

:twisted:

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Dannywilson
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Post by Dannywilson » Sun Jul 31, 2005 9:49 pm

shakespeare wrote:Well, like most pre-digital stuff, ya, GTO suffers from alot of things....

Before the dawn of the digital age, alot of source material suffers from things like telecine glue on the frames, and they also tend to shake alot due to the fact frames couldnt be lined up perfectly before going through the telecine process.

The best way ive found to to correct problems like this is a pretty long and mind numbing process, but it does give near perfect results. I think the thing to do is process ure vob (i assume ure working right off the dvd) through a program called dvd2avi. This will give ya a .d2v file for ure video stream.

Using another handy little program called TMPGEnc, u can then open the .d2v, an in the inverse telecine options, u can dial the footage back to 24fps. (good idea since tv's are 30fps, but monitors are generally 24fps) Once its been IVTC'd, u also have the option of scrolling through the footage 1 frame at a time, and it will show you which ones it will use in the output process. U can look at each one in turn, and if u find a couple that dont line up, u can substitue em for ones that do.. same idea for frames with telecine glue on em, u can switch em with ones that dont. Again, ya, this takes a long time, but i think the end result is worth it.

Once ya finish up that, u save the project in TMPGEnc, and it will give ya a .tpr file. Ya can open that with a program called AviUtl and it has all kinds of friendly options for such things as resize, cropping, an color correction. Save it agian there, an u get an .aup

Run the .aup through a framserver like VFAPI to get a "fake" .avi u can then open with virtualdub an process with ure AVS script or VDub filters as per usual.

Like I said, it does tend to take a long time, but for the older non-digital stuff, it will produce a flawless result.

( ps: all programs mentiond are available from www.doom9.org )

:twisted:
You're retarded.

Izumi is asking not how to Inverse Telecine, rip a dvd, or make a project file with DGIndex (what DVD2AVI has been called for the last 6 months). She knows how to do that stuff already, as does anyone with the bare brains enough to read the tech guides. She is asking what specific AVS (avisynth) filters one would use to clean up the source footage. What you said would do nothing except run it through a bunch of near-useless steps and waste everyone's time.

Do yourself a favor and read up on Avisynth.
"in the morning when i have wood..i like to walk around my house and bump random shit with it.... " -Random comment on grouphug.us

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Scintilla
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Post by Scintilla » Mon Aug 01, 2005 12:28 am

shakespeare wrote:Using another handy little program called TMPGEnc, u can then open the .d2v, an in the inverse telecine options, u can dial the footage back to 24fps. (good idea since tv's are 30fps, but <b>monitors are generally 24fps</b>)
:lol:

In the interests of making this post not completely useless, I feel I should point out that basically all modern monitors in the USA run at refresh rates of at least 60 Hz; 75 and 85 aren't uncommon.

If our monitors all ran at 24 Hz, we'd probably be getting a lot more headaches (and be unable to watch 29.97fps videos probably).
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shakespeare
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Post by shakespeare » Mon Aug 01, 2005 4:02 am

Retarded hun Danny?

Obviously what I said was lost on u...

It AFTER preforming theIVTC function that u can clean the source. Since the source is at 29.97 an u dial it back to 24, there are alot of unused frames that are discarded in the output...

By going through each one seperatly, u can select which individual frames u want to use... thusly, u can eliminate the frames that are all messed up an replace them with ones that arnt. TMPGEnc is just the tool that allows you to do this without having to then actually output any kind of encoded file.

AVS is a stupid-ass scripting lazy mans way of doing things. Whenever u use AVS, u can only preform functions automatically, and it will select which frames it uses in the output, bad ones an all, and there is NO filter for avs that works any other way... any filtering done after the fact just blurs or dulls the frame. It does nothing at all to actually remove the problem, just applys a filter over the problem in a lame ass attempt to cover it up.

Try doin somthin manually for once insted of copin out an using a lazy ass script an u will always get a better result.

The rest of what i said is just the required process so u can bring it full circle back to vdub which is a program most ppl seem to have a vague idea of how to use.

:evil:

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Post by Dannywilson » Mon Aug 01, 2005 7:09 am

shakespeare wrote:Retarded hun Danny?

Obviously what I said was lost on u...

It AFTER preforming theIVTC function that u can clean the source. Since the source is at 29.97 an u dial it back to 24, there are alot of unused frames that are discarded in the output...
Yes, anyone that uses netspeak and poor grammar in a technical forum brands themself as a retard right out of the gate. Moving on to the body of your "help" proves the second. I will attempt to dissect it now. Avs, through the use of Telecide and Decimate, searches through all of the video, finds and fixes interlaced frames, and when found, deletes said interlaced frames. It is the most powerful tool at anyone's disposal to IVTC 29.976 telecined video sources back to 23.976.
shakespeare wrote:By going through each one seperatly, u can select which individual frames u want to use... thusly, u can eliminate the frames that are all messed up an replace them with ones that arnt. TMPGEnc is just the tool that allows you to do this without having to then actually output any kind of encoded file.


AVS is a frameserving tool. What that means, to you, the stupid, is that there is no outputting of any file whatsoever. It takes your original files (your vobs) and lets you do anything you want to them without having to output them ANYWHERE until you want to. Seriously, do you make any move to read up on anything you talk about?
shakespeare wrote:AVS is a stupid-ass scripting lazy mans way of doing things.
There is a large difference between "lazy" and "efficient", which you apparently do not understand. Why would I run my vobs through 6 different steps to get the same output I could get in 2? That's a waste of my time. Besides that point, AVS, in particular the decomb plugin, is the most powerful way to IVTC your footage and get accurate results.
shakespeare wrote:It does nothing at all to actually remove the problem, just applys a filter over the problem in a lame ass attempt to cover it up.
That's just ignorant.
shakespeare wrote:Try doin somthin manually for once insted of copin out an using a lazy ass script an u will always get a better result.

The rest of what i said is just the required process so u can bring it full circle back to vdub which is a program most ppl seem to have a vague idea of how to use.
Hmm it seems to me that you have no idea what you're going to say before the words have left your mouth. I was using TMPGenc before you were out of junior high, by the sounds of your maturity. I do not copy scripts, as the intricacies of avisynth are already known to me, and the guides will teach me anything I'm not sure of. When you reachthis level young padawan, you too will see the light and wonder at your past mistakes. Until that point, I believe you should not post in the video help forums as not to spread the disease of your stupidity to the unaware masses.
"in the morning when i have wood..i like to walk around my house and bump random shit with it.... " -Random comment on grouphug.us

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risk one
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Post by risk one » Mon Aug 01, 2005 8:07 am

Shakespeare (the irony) actually has a point (though he hides it well). AVS doesn't let you correct the mistakes of the IVTC filter on a frame-by-frame basis. In fact, I think TMPEGenc is the only program that lets you do this.
shakespeare wrote: AVS is a stupid-ass scripting lazy mans way of doing things. Whenever u use AVS, u can only preform functions automatically, and it will select which frames it uses in the output, bad ones an all, and there is NO filter for avs that works any other way...
This is a bit ridiculous. Calling people lazy for not going through their footage frame-by-frame is not even rude, it's just stupid. I'd like to add to that, that using this method you'd have to either IVTC your entire source footage this way (good luck with that), or edit interlaced (and IVTC your amv this way) which most people will not prefer.
any filtering done after the fact just blurs or dulls the frame. It does nothing at all to actually remove the problem, just applys a filter over the problem in a lame ass attempt to cover it up.
This is what we call post-processing. Everybody who knows how to IVTC with AVS knows that it can be turned off and that it's very handy when perfect IVTC'ing isn't possible.
Now, if we disregard the inaccuracies in your posts, you didn't actually tell DJ_Izumi how to clean her specific footage, just how to IVTC it, which I'm sure she's more than capable of doing herself.

Back on topic, This page of the guides usually has all the postprocessing filters and options I need. Are there any artifacts still remaining after you've tried all that?
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Post by Iamshadowkiller » Mon Aug 01, 2005 8:25 am

hey pals, stop doing what I'm about to do and answer Izumi's question

now look what you've made me do :?

/end
Oh how convenient. A theory about God that doesn't require looking through a telescope.

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Dannywilson
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Post by Dannywilson » Mon Aug 01, 2005 8:39 am

Iamshadowkiller wrote:hey pals, stop doing what I'm about to do and answer Izumi's question

now look what you've made me do :?

/end
I did in my first post... mftoon and Deen w3d
"in the morning when i have wood..i like to walk around my house and bump random shit with it.... " -Random comment on grouphug.us

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