SpatialSoften (clip, int radius, int luma_threshold, int
TemporalSoften (clip, int radius, int luma_threshold, int
chroma_threshold, int "scenechange", int "mode")
noise from a video clip by selectively blending pixels. These filters can
work miracles, and I highly encourage you to try them. But they can also
wipe out fine detail if set too high, so don't go overboard. And they are
very slow, especially with a large value of radius, so don't turn
them on until you've got everything else ready.
SpatialSoften replaces each sample in a frame with the average
of all nearby samples with differ from the central sample by no more than
a certain threshold value. "Nearby" means no more than radius pixels
away in the x and y directions. The threshold used is luma_threshold
for the Y (intensity) samples, and chroma_threshold for the U and
V (color) samples.
TemporalSoften is similar, except that it looks at the same
pixel in nearby frames, instead of nearby pixels in the same frame. All
frames no more than radius away are examined. This filter doesn't
seem to be as effective as
I encourage you to play around with the parameters for these filters to get an idea of what they do--for example, try setting one of the three parameters to a very high value while leaving the others low, and see what happens. Note that setting any of the three parameters to zero will cause the filter to become a very slow no-op.
TemporalSoften smoothes luma and chroma separately, but
smoothes only if both luma and chroma have passed the threshold.
filter work only with YUY2 input. You can use the
filter if your input is not in YUY2 format.
Note that if you use AviSynth v2.04 or above, you don't need the TemporalSoften2 plugin anymore, the built-in TemporalSoften is replaced with that implementation.
Starting from v2.50, two options are added to
Good initial values:
|v2.56||TemporalSoften working also with RGB32 input (as well as YV12, YUY2)|
$Date: 2007/07/14 18:06:23 $