Some people have problems seeing the download icons on Google drive due to their browser security settings, you're going to have relax them for this page to download the file. The download icons/links are in the top left of the page.
Also, you can't go by the preview on Google, it looks like crap.
Short Lagarith file - approx 180 megs. This has already been through treatment with Neatvideo but various issues remain. Do you see anything here that anything can be done about? The glitches/static/junk at points, the intermittent jumpiness. Definitely don't want to lose any additional detail, which was marginal to begin with, with the source mpeg file this came from.
As always thanks for all input.
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Well, other than the damaged frames mentioned;
- bad block noise, severe banding
- blown-out "hot" brights at invalid levels, even for PC
- gamma too high, looks washed out and lacks depth
I would have fixed most of that before accentuating defects with NeatVideo.Our inventions are wont to be pretty toys, which distract our attention from serious things. They are but improved means to an unimproved end. -- Henry David Thoreau
As far as block noise, deblocking doesn't seem to do squat. I get much better results - which is to say *any* result using the onboard Virtualdub smoother plugin or the Donald Graft Smart Smoother.
Last edited by brassplyer; 21st Dec 2013 at 20:06.
Really couldn't say that deblocking or any other technique would work, or make it better or worse. What you've submitted isn't the source. Can only describe what you've processed in your post.
Deblockers and debanding tools seem to work for most users. But without the source, no can say.
Last edited by sanlyn; 21st Dec 2013 at 22:27.Our inventions are wont to be pretty toys, which distract our attention from serious things. They are but improved means to an unimproved end. -- Henry David Thoreau
Oops. duplicate postOur inventions are wont to be pretty toys, which distract our attention from serious things. They are but improved means to an unimproved end. -- Henry David Thoreau
Try ReplaceFramesMC() to get motion interpolated from surrounding frames.
import("C:\Program Files (x86)\AviSynth 2.5\plugins\ReplaceFramesMC.avs") AviSource("D:\Downloads\various issues lag.avi") ConvertToYV12(interlaced=true) AssumeFPS(59.94) ReplaceFramesMC(39,1) ReplaceFramesMC(73,1) ReplaceFramesMC(75,1) ReplaceFramesMC(217,3) ReplaceFramesMC(223,2) ReplaceFramesMC(266,4) ReplaceFramesMC(271,6) ReplaceFramesMC(364,4) ReplaceFramesMC(370,4) ReplaceFramesMC(398,3)
Last edited by jagabo; 21st Dec 2013 at 23:52.
Wow. I don't think I could ask for better results than that. (other than a magic genie to find the bad frames automatically) Many thanks! Very powerful tool.
import("C:\Program Files (x86)\AviSynth 2.5\plugins\ReplaceFramesMC.avs")
Part of the script?
I just went with this and it works.
avisource("F:\various issues lag.avi")
Last edited by brassplyer; 22nd Dec 2013 at 09:26.
So how does this frame interpolation work? It almost *seems* like magic.
I get that it takes motion from surrounding frames, but how does that work?
Last edited by brassplyer; 22nd Dec 2013 at 09:25.
It analyses motion between two frames, typically of 8x8 blocks, then generates new frames with in-between motions. For example, if you find that a block moved from 8,8 in one frame to 10,12, in the next frame, then it must have been at 9,10 between those two frames. The technique works well when motions are simple (panning shots, a simple object moving over a flat background, etc.) but can generate lots of artifacts with complex motion or when motions are too large.
See slow.avi in the following post for some examples of the distortions this type of motion interpolation can create:
Last edited by jagabo; 22nd Dec 2013 at 10:08.