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-   -   Avisynth: Comparing unfilter AND sharpen (http://www.digitalfaq.com/archives/avisynth/3190-avisynth-comparing-unfilter.html)

Wolfi 04-05-2003 04:30 PM

Comparing, don't get tierd.
 
I compared some scripts with each other to see witch was best. I'm kinda new so I really need some help :? I gonna count up every script I tried with and I hope you wont get bored :roll: I'm trying to make a good script for a svcd :arrow:
The first thing I did was to compare these three scripts :arrow:

one with both unfilter AND sharpen.


ConvertToYUY2()
LegalClip()
GripCrop(width= 352, height=480, overscan=1)
GripSize(resizer="BicubicResize")
Spacedust()
UnFilter(10,10)
sharpen(0.7)
TemporalSmoother(radius=2, strength=2)
TemporalCleaner(ythresh=1, cthresh=15)
mergechroma(blur(1.58))
mergeluma(blur(0.07))
Convolution3D(preset="movieLQ")
GripBorders()
LegalClip()

and then one with only sharpen and then one with only unfilter :o plus the other filters.

I used (preset="movieLQ") becaurse it's a DivX source. (High DivX quality I think)
The conclusion was that the script with both unfilter and sharpen had a lower quality then the script with only unfilter and only sharpen :?

The script with only sharpen and the script with only unfilter was almost identical to each other...Maybe was the one with sharpen a little little bit more clearly then the one with unfilter.

ConvertToYUY2()
LegalClip()
GripCrop(width= 352, height=480, overscan=1)
GripSize(resizer="BicubicResize")
Spacedust()
UnFilter(10,10) <----only Unfilter, LOOK :!:
TemporalSmoother(radius=2, strength=2)
TemporalCleaner(ythresh=1, cthresh=15)
mergechroma(blur(1.58))
mergeluma(blur(0.07))
Convolution3D(preset="movieLQ")
GripBorders()
LegalClip()

That was the first thing I compared, aaand now to the second and nearly last :arrow:

ConvertToYUY2()
LegalClip()
GripCrop(width= 352, height=480, overscan=1)
GripSize(resizer="BicubicResize")
Spacedust()
sharpen(1.0) <---changed from 0.7 to 1.0
TemporalSmoother(radius=2, strength=3) <---changed, LOOK :!:
TemporalCleaner(ythresh=5, cthresh=10)
mergechroma(blur(1.58))
mergeluma(blur(0.07))
Convolution3D(preset="movieLQ") <---LQ
GripBorders()
LegalClip()

I compared this one with one who I had switch out C3D LQ to C3D HQ :?
The two output files on a 60sec clip was also identical, I think...

But the most astounding was that I coulnd'nt see differences between :arrow:

(The one with sharpen)

ConvertToYUY2()
LegalClip()
GripCrop(width= 352, height=480, overscan=1)
GripSize(resizer="BicubicResize")
Spacedust()
sharpen(0.7)
TemporalSmoother(radius=2, strength=2)
TemporalCleaner(ythresh=1, cthresh=15)
mergechroma(blur(1.58))
mergeluma(blur(0.07))
Convolution3D(preset="movieLQ")
GripBorders()
LegalClip()

and this script :!:

ConvertToYUY2()
LegalClip()
GripCrop( width= 352, height=480, overscan=1 )
GripSize()
SpaceDust()
TemporalCleaner()
GripBorders()
LegalClip()

Am I blind or what 8O It has to be something who is differet with these two scripts :cry:

If you had the energi to read this SO PLEASE :!:
Were should I look for differences ?
What can I do to make these scripts better, it has to some way I can make this better, I'm a newbie...

Maybe I should take away a filter or somthing or change a command :roll:

THANKS A LOT FOR READING THIS :!:

//Wolfi

jorel 04-05-2003 04:54 PM

changing unfilter to (50,50) will give you more sharpness too!
i'm reading it all and later i do my simple opinion...

ok friend Wolfi?

:wink:

Wolfi 04-05-2003 04:56 PM

Yes! thank you Jorel :D Friend :D

//Wolfi


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