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Old 13th November 2002, 16:18   #2  |  Link
sh0dan
Retired AviSynth Dev ;)
 
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Join Date: Nov 2001
Location: Dark Side of the Moon
Posts: 3,480
The noise filters may be smoothing the scene changes so much that Dup detects this as a being the same frames, therefore duplicating information.

Always use Dup on a clean source - you cannot trust a source that has been smoothed.
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