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-   -   Is this a good Avisynth script for compression? Quality? (http://www.digitalfaq.com/archives/avisynth/8901-good-avisynth-script.html)

Luciano Cabrera 03-31-2004 04:31 PM

Is this a good Avisynth script for compression? Quality?
 
Hello people, how are you doing? :D

In my search to increase compression (not payin much attention to quality) i ended up creating a frankenstein look alike script, take a look:

Quote:

AviSource
BlindPP(cpu=4)
Blockbuster(method=''noise'', detail_min=1, detail_max=3, variance=0.1, seed=1)
Convolution3D(''vhsbq'')
Deen()
GripCrop(352, 240, overscan=2, source_anamorphic=false)
GripSize(resizer=''BilinearResize'')
Unfilter(-5, -5)
Undot()
TemporalSoften(4,4,8,15,2)
DCTFilter(1,1,1,1,1,1,0.5,0)
GripBorders()
I simply searched for the best compression filters and joined them all together.
The compression is great and quality isn`t that bad either (for me)! :)

What filters or tweaks should i add to the current script to increase compression even more?

What do you think of VagueDenoiser()? is it any good? where do i put it in the script?
Should i use TemporalCleaner instead of TempotalSoften? What about the best parameters for it?

Thanks

Luciano

incredible 03-31-2004 04:41 PM

My friend, ....

shure you can compress even more but what comes out???

Your stream should come out unsharp as hell by applying an blurring unfilter AFTER a Bilinear resize AND followed by a DCTfilter! 8O

Then, ... you do twice a 3d spatio/temporal filtering a) COnvo3D at presets and b) just deen() at defaults wow! :wink: Followed by an extra Temporla Soften.

Don't change the optimal script as its developed by phil taking a lot of time and his settings do make sense.
In here we do not only gain from compression, we also try to keep quality :!:

My two cents

Inc. :)

Dialhot 03-31-2004 04:50 PM

Nothing will never beat this little script in term of compression :

Code:

v=avisource("movie.avi",false)
blankclip(length=framecount(v))

The quality will suffer a little but you will need real eagle eyes to see that.

incredible 03-31-2004 04:53 PM

:lol:

Defenitely no offense Luciano! :) , but sometimes Im a bit confused in case of quality "norms" some people do have if they say "not" bad .......

PS: According to VagueDenoiser() which is btw slow! there was in the past a big hype on that but IMHO it only gives good output in filter-combinations where these combinations got to be well choosen .... but not to be added in a way you do. So stick with the optimal script as it is :wink:


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