Selur's Little Message Board - What noise is that?

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This is a section, I cut for focus on the mess, the original is a wmv 640x480 at 29fps..dont know if its interlaced or progressive, mediainfo dont tell, but probably progressive
At first I thought it was a problem of frame bad interlaced but dont know...
Huh

Ok made some test with antialiasing santiag nnedi3 and look good, not almost perfect and stable but maybe is the solution, but confused of what value use, 8x6, 16x6, 8x4, 16x4..maybe the one with 16... Huh

day by day maybe something I learn Big Grin

Not sure whether the doc helps:

Code:
nsize -

      Sets the size of the local neighborhood around each pixel that is used by the predictor

      neural network. Possible settings (x_diameter x y_diameter):

          0 -   8x6

          1 -  16x6

          2 -  32x6

          3 -  48x6

          4 -   8x4

          5 -  16x4

          6 -  32x4

      For image enlargement it is recommended to use 0 or 4. Larger y_diameter settings

      will result in sharper output. For deinterlacing larger x_diameter settings will

      allow connecting lines of smaller slope. However, what setting to use really

      depends on the amount of aliasing (lost information) in the source. If the source was

      heavily low-pass filtered before interlacing then aliasing will be low and a large

      x_diameter setting wont be needed, and vice versa.

      Default:  6  (int)

Cu Selur

(12.01.2025, 18:46)Doom83 Wrote: [ -> ]Also here try some filter but I'm never convinced of the result..there are deblock? despot? dont know that kind of noise, it seems more kind of noise and look always like a mess...

Find a photo, dont know how someone make the mess in the video...probably there are a way to make the video like the photo? Huh

BasicVSR++ wasn't far from that.

For me dont work that, dont know why Confused

That photo look different also for other, more sharp, detailed (color eyes ecc...)..maybe lost information...

Yes, the photo it better, since it wasn't mishandled like the video.

Codeforrmer are interesting but there are also something similar for the full picture? The face good but the rest blurred/mess

Nothing that I know of.

(15.01.2025, 20:38)Selur Wrote: [ -> ]Is that the whole thing, or just a section of the source? (300x340 is a rather uncommon resolution)
Assuming it's the whole, it looks bitrate starved.
You will probably have to throw a strong denoisers at something like that.
Some antialiasing might also help.
Note that if you use the Vapoursynth Preview it will probably look worse than it will be in a media player, since point / nearest neighbor resizing is used in the preview (players normally use at least bilinear resizing).
BasicVSR++ + bilinear resizing to 600x680:

Cu Selur

Sorry whats the type of noise at the top on the red section, like flicker? chroma noise? Try some filter about it but maybe need to find right value..or maybe are other noise

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