VHS restore filters using Avisynth and VirtualDub - advice?
Hello,
I am seeking advice on avisynth scripts and virtualdub filters that are typically applied to vhs captures. I used lagarith lossless yuy2 for my capture. After I apply these filters, I'm going straight into avstodvd. It's a home movie. Thanks. |
A typical script for my own vhs recordings would be this:
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AVISource("E:\MyVideo.avi").trim(8083,14591) |
Do I have to open virtualdub to apply these settings?
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nope you don't, you need the filters though
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Ok. I'm going to google those filters and "load" them. Is it possible to open avstodvd and then open file>, and then load the script? In other words, will avstodvd do the avisynth script conversions within the program itself?
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I prefer to use a very hands off + custom approach. I'm not overly fond of Avisynth denoising, and hate Avisynth weave() because it can cause interlace damage with some filters. I prefer VirtualDub as much as possible, but will use Avisynth wherever VirtualDub is weak.
I'll share it when I get up (about to go to bed here). |
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http://www.mediafire.com/download/0o5d8obxvtjfu6z/Camcorder_Color_Denoise_sse2.vdf |
Thanks! I had read somewhere that there is a "lord smurf virtualdub". Is that still relevant and applicable today? And if so, where can I get a shiny new download of that? :)
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HUH ? if you have huffyuv installed it should be decoded normally if it's another codec i don't know
Try directshowsource instead of avisource, perhaps you'll have better luck |
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This type of script will undoubtedly save much time, and may work for many tapes, but I prefer the slow route and capture first, filter second. |
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I was unable to download your sample avi, which has been removed. Meanwhile, I see you're trying to get started in Avisynth with Avisynth MT. I'd stick with Avisynth 2.5.8 until you get a better understanding of how to work with Avisynth and its filters. While Avisynth is often essential for some basic VHS fixes, I agree that much can be accomplished with VirtualDub, and VirtualDub is easier to learn. I've seen some of your sample videos is other forums; they are quite problematic. However, you can't just throw copied scripts at video and not know what some of those filters are doing. In many cases, the filters you see in complex Avisynth scripts and VirtualDub setups aren't even needed. You will have to go through a little reading and ask some questions before you can spruce up VHS, and it's something you would have to do with even the "easiest" and most simple software processors. As lordsmurf and others have noted, it's very easy to over-process VHS. Learning to do it correctly is a slow process at first, but you only have to learn it once. Meanwhile, I'm sorry I missed your sample. |
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- chroma noise -- see also: http://www.digitalfaq.com/forum/vide...oma-flaws.html - color cast/contrast issues; various filters need be used - grain -- Temporal Smoother in VirtualDub, or maybe TTempSmooth in Avisynth - audio hiss -- and you need an audio editor like Sound Forge and/or Audacity See also http://www.digitalfaq.com/forum/vide...html#post32962 |
And you have forgotten the infamous chroma shift. It can be a serious issue (easily fixable generally) depending on the tape.
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I knew I was forgetting something. :smack:
Yes, both chroma noise + chroma shift (color bleed) are typical VHS errors. Fixing the shift makes it sharper, as well as making it look overall better. |
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