Quantcast Is this a Good Avisynth Script for Compression? Quality? - digitalFAQ.com Forums [Archives]
  #1  
03-31-2004, 04:31 PM
Luciano Cabrera Luciano Cabrera is offline
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Hello people, how are you doing?

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
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  #2  
03-31-2004, 04:41 PM
incredible incredible is offline
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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!

Then, ... you do twice a 3d spatio/temporal filtering a) COnvo3D at presets and b) just deen() at defaults wow! 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.
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03-31-2004, 04:50 PM
Dialhot Dialhot is offline
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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.
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03-31-2004, 04:53 PM
incredible incredible is offline
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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
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