[HELP] What noise is that?

[Selur]

Not sure whether the doc helps:

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