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

[Florian Erfurth]

Phil Oleynik wrote:

> 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.
>>   
> Hello,
> the name unsharp goes from old photo technique, "unsharp mask". Look in
> Wikipedia, there are very nice article.
> best regards Philipp

Ah... "unsharp mask" is a method, which makes a photo more sharp. Do I
understand right?

cu Floh