which filter for black and white captured movies

[awe007]

hi,

because i´m new to avisynth i´ve still some question. very often i capture on german tv (history channel e.g.) historical documentations about ww2. therefore large parts of the movie are in black and white. up to this time i usually use the bicubic resize filter. my question is if there are any other filters which are more suitable for movies which contains of large b/w parts. moreover i´m looking for a filter to sharpen the movie.

i would appreciate any help. perhaps someone can make some suggestion about possible filters. i´ve read the avysynth filter page but there are so many filters and the most filters´ effecs aren´t described. so it is very difficult for a newbie to find filters that can help.

thx

frank

[lamer_de]

You could start with LanczosResize instead of Bicubic. You might want to try the ShartTools "filters" from mf aswell. But they're pretty/extreme slow, so maybe you don't want to go though the hassle if you cap alot.

http://forum.doom9.org/showthread.php?s=&threadid=60039

CU,
lamer_de

[r6d2]

Should you want to convert them to sepia (they look great), you may use:

ColorYUV(off_u=-24, off_v=22)

Play with the values to get the exact tone you want.

[awe007]

thx for the information....i thought you need some filters to sharpen the black/white material...

if anyone knows something about it...

thx

frank

[r6d2]

Originally posted by awe007
thx for the information....i thought you need some filters to sharpen the black/white material...
AFAIK, B&W movies are not different animals in terms of sharpening filters. Try this page for some filters on the matter:

http://www.avisynth.org/index.php?page=Section+3%3A+Filters%2C+plugins+and+colorspaces

There are about 5 or 6 sharpening filters. As most of this stuff, a lot of trial and error is needed to suit your own personal taste.

Remember though that sharpening increases file size, so you loose some bitrate. Some say it's better to sharpen the TV at playing time :)

[awe007]

r6d2 thx for your information....i´ll try some of the filters....i think you´re right when you say "trial and error"....the best way is to use some of the filters...

thx

frank