[MEncoder-users] Sharp-Videofilter: unsharp=l3x3:1:c3x3:1

[Phil Oleynik]

Florian Erfurth wrote:
> Hi, could someone of you explain me what does the
> filter "unsharp=l3x3:1:c3x3:1" mean. I'm only confused because I read that
> this does "use sharp" while the option is called "unsharp".
>
> Thank you very much!
> cu Floh
> PS: I don't know much about videofilters but I'm developing a GUI (avi2pmp),
> which uses mencoder, so it would great if someone explain me a bit.
>
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>   
Hello,
the name unsharp goes from old photo technique, "unsharp mask". Look in 
Wikipedia, there are very nice article.
best regards Philipp