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-   -   UnDot filter for avisynth 2.07? (http://www.digitalfaq.com/archives/encode/2064-undot-filter-avisynth.html)

black prince 01-06-2003 08:32 AM

UnDot filter for avisynth 2.07?
 
@Hi All,

I'm re-encoding very high quality mpeg-2's (480x480) to LBR (352x240)
and would like to test "Undot" or some filter that effect Gibbs noise.
Some have mentioned "UnFilter" as also having effect on Gibbs. I
know there will be loss when re-encoding, but I've converted SVCD's
before and they came out very good. I want to play with Gibbs noise
while I'm doing this. :D

-black prince

rendalunit 01-06-2003 01:22 PM

hi black prince,

I've tried unfilter(-15,-15) with average results. I wanted to try undot but I couldn't find avisynth 2.05 alpha :oops: On sources that are very mosquitoey I use fluxsmooth() sometimes in combination with temporal smoother (2,2) :twirl: I can't wait till SansGrip comes up with a Gibbs filter because that mosquito noise bugs me more than the dct blocks do :evil:

black prince 01-06-2003 02:32 PM

Hey rendalunit,

rendalunit wrote:
Quote:

I've tried unfilter(-15,-15) with average results. I wanted to try undot but I couldn't find avisynth 2.05 alpha On sources that are very mosquitoey I use fluxsmooth() sometimes in combination with temporal smoother (2,2) I can't wait till SansGrip comes up with a Gibbs filter because that mosquito noise bugs me more than the dct blocks do
Only avisynth 2.5 alpha supports "UnDot". :cry: Seems if your source
is clean (i.e. DVD) then the encoder is causing Gibbs noise and can't
be corrected with a filter until after encoding. I wanted to try re-encoding
from a high resolution mpeg-1 or mpeg-2 with "UnDot" and see how
much it would correct the problem. I too have had trouble finding
avisynth 2.5 alpha. I'll try to pm SansGrip on where to find it. :wink:
A version of "UnDot" that works with avisynth 2.07 would be nice :)

-black prince

black prince 01-06-2003 02:40 PM

Hey Ren,

I've found avisynth 2.5 alpha at this link:

http://cultact-server.novi.dk/kpo/av...nth_alpha.html

Let me know how you make out with "UnDot". :D

-black prince


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