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[HELP] about bicubic resize - Printable Version

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about bicubic resize - i990049 - 07.04.2022

according to this
http://avisynth.nl/index.php/Resize
BicubicResize may be the most visually pleasing of the Resize filters for downsizing to half-size or less.doom9
Try the default setting, (b=0, c=0.75) as above, or (b= -0.5, c=0.25).
Is hybrid bicubicresize use the default setting?How to set  (b= -0.5, c=0.25) in hybrid?
Thank you.

RE: about bicubic resize - Selur - 07.04.2022

You enable resizing (Crop/Resize->Base->Resize, set the base setting you want).
Then you overwrite the general resizer by enabling "Filtering->Avisynth->Resizer->Resizer".
Select the resizer (i.e. 'BicubicResize') and the resizer specific values (i.e. bluring and ringing) you want.

Cu Selur

RE: about bicubic resize - i990049 - 07.04.2022

(07.04.2022, 05:28)Selur Wrote: You enable resizing (Crop/Resize->Base->Resize, set the base setting you want).
Then you overwrite the general resizer by enabling "Filtering->Avisynth->Resizer->Resizer".
Select the resizer (i.e. 'BicubicResize') and the resizer specific values (i.e. bluring and ringing) you want.

Cu Selur
Which filter is hybrid's default？vapoursynth or avisynth？

RE: about bicubic resize - Selur - 07.04.2022

By default Hybrid uses Vapoursynth. (whether to use Vapoursynth or Avisynth is controlled by Filtering->Support)

Cu Selur

RE: about bicubic resize - i990049 - 07.04.2022

How to set (b= -0.5, c=0.25) in Vapoursynth?Avisyth isn't available in Windows 10.
Thanks

RE: about bicubic resize - Selur - 07.04.2022

afaik: You can't.
The filters in Vapoursynth are not identical to Avisynth and thus do not have the same parameters.

Cu Selur

RE: about bicubic resize - i990049 - 07.04.2022

How Vapoursynth deal with bicubic resize？use (b=0, c=0.75) as default？and how to exam a output video is bicubic use (b=0, c=0.75) or (b=-0.5, c=0.25)?

RE: about bicubic resize - Selur - 07.04.2022

Just noticed that I missed half of the previous post since you set the font size to 1.
-> is your system broken in some way or why would you do that?

Quote:Avisyth isn't available in Windows 10.
Thanks
Avisynth is available on Windows only. So if you can't use it on Windows 10 you are doing something wrong.

Quote:and how to exam a output video is bicubic use (b=0, c=0.75) or (b=-0.5, c=0.25)?
Since we are talking Avisynth here: You look at the Avisynth Preview once with settings set to A and one with settings set to B.
If you can't tell the difference between your settings, it doesn't matter for you which settings you use.

Cu Selur

RE: about bicubic resize - i990049 - 08.04.2022

It just isn‘t available in my win 10 home edition
[Image: 22d42150a61e4a7d.png]
[Image: 2e64c7447573d6cb.png]

RE: about bicubic resize - Selur - 08.04.2022

It is, you just need to switch Support to Avisynth,... (Lower right corner)