Resize/Upscale questions

[Selur]

Would it make sense for VHS captured video to upscale straight to 1920x1080 with Hybrid, achieving higher size upscale?
Instead of upscaling to 1280x720 and letting HW media player upscale it to 1920x1080 outputing to TV.

The resizing method in Hybrid by default is defined and set by:
· Crop/Resize>Base>Picture Resize> Resize method: “10 – bicubic spline”

Would changing resizing method to NNEDI3 give higher resize upscale quality?

Yes.

Under Avisynth there is also available spline36, spline64 resizer.
I read about them as good option for upscaling, they do some sharpening.

Hybrid also supports different spline resizers in Vapoursynth through 'fmtconv'

What method you would recommend?

I personally prefer Gaussresize for small size changes and NNEDI3 for larger changes.
Depending on the project and time I'm willing to spend SRMD, Waifu2x nvk, or a GLSL Resizer also might make sense.
it always depends. Check the Vapoursynth Preview to see which makes most sense to you.
-> I would say when going from SD to HD NNEDI3 is a good start, but I would always recommend to try SRMD, Waifu2x nvk (those two are gpu based and require a fast graphic card) and GLSL Resizer.

Cu Selur

Ps.: when processing VHS content most is gained and lost during filtering (DeNoise, DeGrain, ColorCorrections,..) which is also the main problem when using a TV which blindly uses sharpending, denoising etc. (from my experience so far, I would always recommend to disable and image enhancements in TVs)