Fixing Scaled Interlaced Commercial

[AstroSeedP]

I'm trying to fix the interlacing in this commercial and I'm certain it's been scaled.



I tried downscaling it to 480p before deinterlacing it and it seems to have helped, but I still have some artifacts.



Should I try a different resolution or is there a better solution to this?

[Alwyn]

If you're into AVISynth, have a go with PoisonDeathRay's script here:

https://forum.videohelp.com/threads/416119-Non-Removeable-Jaggies#post2752815

I tried it on your video and it cleared up the jaggies (every 4 fields in 10, by the looks), which seem to be burned in (open in Vdub, Deinterlace Yadif Double Rate BFF and step through).

I set the Spline64resize at the end back to 1280x720. It looks a bit softer (and the dog's head-swivel is a bit messy), better than it was though.

The PDR script I used (video only):

LWLibavVideoSource("D:\VideoHelp\AstroseedP\Sonic꞉ 'Boom' [Vimeo].mp4")
ConvertToYV16()
Spline16Resize(400,300)
santiagmod(3,3)
QTGMC(inputtype=2)
Spline64Resize(1280,720)

[jagabo]

I don't think a different resolution will help. But this reduces the residual artifacts a bit more:

LWLibavVideoSource("Sonic.mp4", cache=false, prefer_hw=2) 
AssumeTFF()
DeLanczosResizeMT(last, last.width, 480) # from the ResampleMT package
QTGMC(preset="fast")
SelectEven()
TDecimate(Cycle=5, CycleR=1)
#SMDegrain(tr=2, thsad=2500, PreFilter=4)

If you enable that final SMDegrain it will remove almost all of the remaining comb-like artifacts but will also lose some details and distort some moving objects.

With SMDegrain:

[Attachment 82869 - Click to enlarge]

[Alwyn]

That's good, Jagabo, but it's stretched. Could we just do a spline64resize(1280,720) at the end?

[jagabo]

Oops, I missed the last line when I copied and pasted. I used nnedi3_rpow2 but Spline64Resize is fine.