Aliasing lines

[BladEra123]

Hello, I have had problems having aliasing lines on the episodes which I have, is there any possible way to fix it without losing any quality? Thanks

[l33tmeatwad]

Could you post a screenshot? It is possible to filter with AviSynth and maintain the quality, however it's a lot easier to make recommendations with a visual sample.

[BladEra123]

When the visual is panning at the bottom or top, or when the episode zooms into a character, I can see visible jag lines around the character draw-lines. I'm sure it has to do something with the aliasing.
I'll provide with some images, from a couple of episodes.

In this episode, the camera is panning up to the character, you can notice some lines around the clothing, they look jagged.

In this image as well, the camera is panning up to the character, it looks even more bad because of the aliasing lines when I see this clip in the episode. In this image however, the lines are below the chin line of the character.

In this image, the character himself is moving, and I can notice the edgy lines here too.

Any help would mean a lot

[l33tmeatwad]

The AviSynth script DAA could filter that, however these look more like combing artifacts from poorly handling the interlacing. Is your source the actual DVD or a digital source? What has your process been for handling the footage so far?

[BladEra123]

It's DVD ripped, as far as I think the person who ripped it into MKV used HandBrake tool. I did not personally rip these episodes from the DVD. Also, I've used the re-containing method to bring these footage to MP4 format, even in the MKV file I can notice these lines. Do you think it can be fixed using AviSynth?

[l33tmeatwad]

Well they sure didn't seem to rip them correctly...lol...unfortunately for you that means you have to do extra work to make it decent enough to use. To clean them up you'll need to run them through AviSynth, so you won't need to hang onto the new MP4s unless you got rid of the originals. Here's a sample script you could try for these videos:

Code: Select all

LWLibavVideoSource("video.mkv")
DAA()
DAA()
FastLineSharpenMOD()

You could alternatively use FFVideoSource to import it if you have that. Also FineSharp is another popular sharpening filter you could try instead of FastLineDarkenMOD. The combing artifacts looked pretty severe so I duplicated DAA, if they still show up some you COULD try replicating it again, just keep in mind this blurs the image. From the screenshots they also look like they could use some cleaning up as well, if you would like recommendations for that just ask.

[BladEra123]

Your explanations are very helpful and I would like to take a moment to thank you for all the help you've provided so far, unfortunately I've only gotten confused after time; I did install the AMVpack and I believe I have got all the tools I need but I'm very sorry this is my very first time trying all these softwares' and I would really appreciate if you could somehow give me a guide to it or give me a link where it would explain everything in DETAILS, step by step because I seem to be very confused, I only figured out that I'm supposed to open AvsPMod to run the AviSynth. Also, would I have to do this to the MKV episodes or can I do this to the MP4 episodes, another thing I wanted to ask is if I can do all these processes of cleaning and aliasing after I finish my AMV, would it have the same effect or would it be better to clean the episodes itself then work on the AMV. Also I would love to know more recommendations about the cleaning of footages, that'd be very helpful. Thanks once again

[BladEra123]

Also, I viewed this page too http://www.animemusicvideos.org/guides/ ... l#aliasing

It seems very good, I noticed the differences it can make and I'd love my footage to look like this too, as soon as that is done I'd be super happy.

[l33tmeatwad]

I have two guides that can help you with the tools in AMVpack, the first is AviSynth 101, an intensive guide that explains how AviSynth works and how to use it. The second and easier guide is AMV 101 which breaks down things to a step by step processes, however it is a little cookie cutter and you'll have to fill in some of the gaps for non-standard sources like yours.

[BladEra123]

Awesome, I was able to open up all the programs and do a little bit of scripting in the software. I'm having an issue though, when I try to load the .avs file on VirtualDub it doesn't open up. The problem is as it follows "Unable to open file path:\path\path\path\videproject.avs" I tried reading about it on the internet and it said that the avs file is not compatible with the 64 bit version of VirtualDub, is that correct? And what can I do to open my file onto it.