misanderstood!

[Tomatschek]

Hi Avisynth-user:
=================

I love this tool - its my first choice for DVD conversion.
But, maybe i'm a german guy, i do not really know the diffe-
rences of the following filter explenations

soften - smoothing - blurring

please don't hit me for this stupid question.
I only know, blurring is the highest form of
"unsharp" pixels and it looks bad.

thanx for any responce

Thomas
carpe diem

[dividee]

Well, it would be easier if some german out here could translate these words for you, but here it is anyway:

In the context we speak of, "softening" and "smoothing" are interchangeable. Blurring is the action of averaging pixels together. But a standard blur produce ... a blurred picture (sorry, something like an out-of-focus effect). Smoothing (=softening) filters try to remove noise by averaging pixels but without touching the image structure. It can be called "adaptive blurring": pixels are averaged together only if they are reasonnably close to each other (definition of "reasonnably close" and the way they are averaged vary from filter to filter).

"Blurring" is quite often referred to as the undesirable effect you obtain when you use a too high treshold with a smoothing filter. "Ghosting" can be produced by temporal denoising filters and is a kind of blurring along the time axis.

I hope this is understandable, english isn't my first language either.