2. The smoothing strength
(that is the effective width on intensity scale for the weights assignment)
can be changed in finer steps than in the original temporal smooother,
which allows the precise control over the noise reduction while keeping the motion intact.
3. The smoothing kernel can
be changed from 5 to 15 frames.
Smaller number saves the processing time. Higher number makes the smoothing more
accurate (from the math point of view), but it does not smooth the motion.
That's because this setting means the maximal
kernel width, while the actual kernel is dynamically reduced if a scene change
is detected.
4. The intensity and
color components of a pixel are smoothed separately,
with different smoothing strengths. This can be particularly useful for a VHS video.
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