Avisynth: UnFilter Tweak?
I read some where in this forum that a negative unfilter value would give compression to a file ,...well they sure were right.
LegalClip() GripCrop(528, 480, overscan=2) GripSize(resizer="BicubicResize") UnFilter(50, 50) TemporalSmoother(1, 2) MergeChroma(blur(1.58)) MergeLuma(blur(0.2)) GripBorders() Tok prediction with this script 63.15% CQ. LegalClip() GripCrop(528, 480, overscan=2) GripSize(resizer="BicubicResize") UnFilter(-30,-30) UnFilter(50, 50) TemporalSmoother(1, 2) MergeChroma(blur(1.58)) MergeLuma(blur(0.2)) GripBorders() Tok prediction with this script 70.39% CQ. notice a 7% CQ gain with the second script, still a pretty sharp image. |
IŽll try that too when I get off from work!
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The image could be sharp... but what about the details?
Are they still there? |
Detail looks just find to me Muaddib, but only you can answer your owen :?: :wink:
Remember this is only a test. |
ovg64, muaddib, CheronAph
:) like i posted after do 6 hours of tests... 8O "only my opinion... maybe with unfilter 30,30 will be good and is needed less time/less final size too!" here: http://www.kvcd.net/forum/viewtopic....6ac4153de10073 and is my opinion here too. unfilter for me is the very best filter! in the same day that trBarry post about unfilter, i download the version of dvd2svcd (d2s110b1pre22unfilter) in july-30-02,and all encodes are using this filter. you got time if adjust to 30,30 or 25,25 like in MovieStacker, the result will be fastest and with just a few visual differences from this script! :wink: |
I got the same results, about 10% more CQ with negative unfilter!
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Yes, but Kwag's whole point of using Unfilter(50, 50) within the Optimal Script was to first oversharpen the picture before the subsequent MergeChroma/Luma lines blur the picture later on. I believe Kwag referred to it as a "psycho-visual" effect....basically meaning that it gave us some extra compression while at the same time, maintaining a good sharp picture to the naked eye.
If you decide to use negative Unfilter values, then you'll probably need to also lower your MergeChroma/Luma(blur) values or drop them completely (so you probably won't really be gaining any compression in the long run). If you can tolerate a blurrier picture, then use lower (or negative) Unfilter values and/or higher MergeLuma/Chroma values until your eyes can notice the difference....afterall, beauty is in the eye of the beholder! :wink: You'll gain compression, but probably sacrifice some picture-quality (sharpness). Personally, I think the current Optimal Script works and looks great as it is, so I try not to stray from it (by making changes or adding more filters) unless I absolutely have to. -d&c |
I think I gonna stay with Kwags script, for now. I encoded a 90min movie, KVCDx3 544x480, and put it on a 80min cd-r, the result was fantastic 8O
//Wolfi |
Quote:
I guess you get the point :mrgreen: |
Yes Kwag i think thats what we are doing anyway trimming a bald headed :roll: and making him look better the best way we can :twisted: until we get a filter to gain CQ will keep doing anorthodox things around here, see the other guys they still not happy they want more :idea:
Thanks 4 ur opinion we'll keep trying :wink: |
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