Settings for LimitedSharpen()

[joshbm]

Hi all,

I use LimitedSharpen() to sharpen my video. I found if I use the filter once it yields good quality. If I use it twice it yields excellent quality. Except I've been using it like so:


LimitedSharpen()
LimitedSharpen()


I was wondering what settings can I place on a single LimitedSharpen, so that it yields the same as placing LimitedSharpen twice in the script. That way I can save my CPU some hassle as well as rendering time.

Thanks!
- joshbm

[Soulhunter]

Perhaps simply raising the strength parameter... :rolleyes:


But I think the result wouldnt be the same !!!

Raising the strength is different than calling the filter twice...

Coz, the result of the 2nd filter is affected by the result of the first one !!!


Bye

[Didée]

Usual answer: it depends on this and that.

Of course, Soulhunter is right: no combination of settings will give the same result as calling it twice. Perhaps similar, but not *the same*

However, "wide=true" might give you what you want. Alter the strength also, try a different "Smode". Or try "Lmode=2", perhaps with a little lower strength. Sometimes a little more "overshoot" along with "soft=true" is also nice ...

... Possibilities are many, and what *can* be done to the source depends on its characteristics.

[joshbm]

Okay... Thanks Didée! Yes lol... Believe it or not a newb like me, I did in fact mess with the strength setting before posting here :p. I looked in the script it appeared the default setting was 160 (dependant also on Smode), so I told it strength=320. Different from 2 LimitedSharpen's.

Thanks again Didée, I'll play with some of those settings.

Regards,
- joshbm

[joshbm]

I've been toying with it and it yields good results at

LimitedSharpen(wide=true,Lmode=2,overshoot=17,strength=200,soft=true)


If you are interested in seeing the quality increase, I can post my results.

Thanks!
- joshbm

[Didée]

Sure. We're all curious people here, and imageshack is always keen on hosting before/after screenshots.

[joshbm]

Well, I have my own server :-)....

http://www.videocdpro.com/josh/limitedsharpen.htm

Those are the comparisons...

Thanks again!
- joshbm