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8th July 2002, 07:38 | #22 | Link |
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Hi-
You sell yourself short Tom. I jumped on it as soon as it came out, as I've been trying to find something to lessen the effects of Edge Enhancement (I've run across a lot of it recently). Temp Smoothers usually damage the film before cleaning up EE and the associated pixelation. Unfortunately, my tests show that you have to blur-soften the film too much before it has much of an effect on a movie with bad EE. But combined with a light TemporalSoften2, it's not too bad. However, as Dreassica said, as a sharpener for soft sources, it's great, and way faster than the Sharpen filter. They're just now getting wind of it down at the SVCD Forums where a lot of people like to sharpen up the source (for some reason) and have only had the Sharpen Filter before now. So you may hear some more reactions before too long. |
8th July 2002, 13:42 | #23 | Link |
Pig on the wing
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Since you wanted feedback, here's some: it's simply magnificent! I've encoded three TV captures and using a rather small value for UnFilter gives the same results as Sharpen ( +bicubic 0.00/0.75 ) but is a helluva lot faster!
Although, it seems to crash Avisynth (the infamous read access violation error) in Win XP sometimes. Win98SE has worked flawlessly.
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8th July 2002, 14:24 | #24 | Link |
Still Kick'n
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Hello, I just read about this new filter. What values would you use to get a sharpen of .5? I tried UnFilter(15,15) and did not notice any difference. My max ave bitrate was 2230, would the filter work better with low bitrates? and do you recommend using the higher values for Bicubic? (Increase from .6 to .8?)
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8th July 2002, 16:53 | #25 | Link |
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Sorry, the UnFilter sharpen values don't correspond nicely to other filter values in Sharpen, BiCubicResize, etc. I'd just try raising them until you either get too much sharpening or reach 100.
- Tom |
8th July 2002, 16:56 | #26 | Link | |
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Quote:
And you might try updating to Avisynth beta 6 or 7 if it's not just an UnFilter problem. - Tom |
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9th July 2002, 18:17 | #30 | Link | |
Pig on the wing
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Quote:
Unfortunately I can't give any specific details yet as I've only done a couple of encodes, but as I said, Win98 works like a charm!
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10th July 2002, 11:14 | #31 | Link |
The Digital Soul
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Weird, but cool, performance increase
I just ran across a strange side effect of using the UnFilter. I use an Animated MergeChroma and MergeLuma to blend in my name and episode info into the first couple seconds of video. This will usually drop the FPS during those seconds of blending down to around 8 FPS. However I noticed that if I have some form of UnFilter in the AVS script (and it doesn't even have to be set to do anything (Like UnFilter(0,0))) it will increase my FPS up to it's normal real-time 23-24FPS! That's sweet, but uh, I don't think it's supposed to do that.
I'm not sure if this speed improvement can be applied to other Filter's as I haven't tried yet, but I sure did a double take when I noticed it. Any info or thoughts? |
10th July 2002, 16:28 | #32 | Link |
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soulfx -
I'm not sure how Avisynth does it but any time you combine multiple clips of different frame rate into one (using ANY filters) you maybe will end up with a single constant frame rate. - Tom |
25th July 2002, 20:05 | #35 | Link |
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Maybe a stupid question, but isn't DivX Yuy2 compliant, because i used the unfilter in my avs to convert divx to SVCD, but it won't open the AVS in Vdub, stating that unfilter only supports Yuy2 color format. When i tried searching for explanation i found out it was the first DivX 3.11 file i tried encoding (the earlier ones were all DivX5).. I distictly remember reading that divX was Yuy2 native.
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31st July 2002, 04:06 | #38 | Link |
anime DVD nut
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I'm having some issues with Unfilter in my anime encoding. It seems that I end up with vertical "bars" running through my encodes with the settings I'm using (tried more than a few different settings of course).
Are you guys finding that you need different values for horizontal and vertical when sharpening? |
31st July 2002, 05:53 | #39 | Link |
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I have seen the vertical bars when I sharpen it too much, or especially when I tried sharpening it twice. But it seems to depend upon the material. Some video already has some edge enhancement and sharpening will make it worse.
Also, Vlad just sent me a fix, pointing out that this can crash on a K6-II, using an unsupported instruction. I'll try to incorporate that and make it available soon but anyone experiencing this please PM me. - Tom |
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