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Old 8th January 2002, 21:09   #1  |  Link
brown1978
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resize filter

I use the Bilinear filter my movies look a little blurry, should I use soft bicubic or neutral or sharp, can any one explain which one is better to use.
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Old 8th January 2002, 21:31   #2  |  Link
Acaila
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Supposedly bilinear is best for downsizing and bicubic for upsizing. But as far as I have seen bilinear is always too blurry, and soft bicubic almost as much. So I just stick to sharp bicubic, even though it gives largest filesize.
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Old 8th January 2002, 22:25   #3  |  Link
roy
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What folter you will use you can only properly determine when you do a compresability check. For every filtry you will get diffrent result so be carfull, what filter yuo are using. Read very carfully guide on Doom9.
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Old 9th January 2002, 00:16   #4  |  Link
brown1978
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When you say larger file size with sharp, are we talking a few megabytes or hundreds.
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Old 9th January 2002, 00:55   #5  |  Link
xzquala
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warning, extremely biased opinion

I always use sharp, that doesn't mean you have to too.
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Old 9th January 2002, 02:15   #6  |  Link
FxOverlord
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Depends

Depends on the movie to which one i use but mostly i try and stick to neutral bicubic. Bilinear too soft and sharp bicubic too sharp. This is a "rough" guide for me. Of course depends on what you find visually pleasing

Noisy movie - bilinear resize
My file size is too large - bilinear
I've reached 640 x ... and still have bits left - sharp bicubic

So to answer your question - for me it depends on the source but i try neutral resize first and see if it looks good or if i can reach a nice rez b4 i try other resizing.
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Old 9th January 2002, 02:16   #7  |  Link
TheWEF
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Re:

Quote:
Originally posted by brown1978
When you say larger file size with sharp, are we talking a few megabytes or hundreds.
it depends on the movie, the resolution, other filters,...
as a rule of thumb i would estimate:

max filesize with sharp bicubic will be 30-40% higher than with bilinear, the others lie in between.

meaning that e.g. if you get a comp-check-perc of 50% with sharp bicubic you might reach about 65% with bilinear.
the picture will be more blurred but the codec macroblocks will be less visible.

for a perfect rip you need the correct balance of these 4 factors:
compressibility - bitrate - resolution - filters.

and a litte experience

wef.
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