how to eliminate strange "stripes"...

[spoRv]

On a HDTV recording, I noted there are strange "stripes" - don't know how to define better this problem...

https://s12.postimg.org/f4t7l5z9p/strikes.jpg

Here you are a small clip (https://fs10n4.sendspace.com/dl/b25798913e3fde3a7f0043d53a23764d/58cef5c17d4dfc0a/bsu9vk/strikes.ts)

A simple, quite effective, solution I tried is this:
limitedsharpenfaster(strength=1200)
pointresize(last.width*4,last.height*4)
converttorgb.gcblur.converttoyv12
spline64resize(last.width,last.height)

not the most elegant, nor the best, I know, but it works... the fact is it's painly slow, around 0.2fps with my not-that-bad 4770...

Any alternative, fast solution that retains as much detail as possible?

:thanks:

[AVIL]

Hi spoRv

Replace your chain by the plugin "Defreq"

DeFreq(fx=98,fy=10,dy=10,dx=1.25,fx2=98,fy2=-10,dy2=10,dx2=1.25,show=0)

You can find it at
https://avisynth.org.ru/defreq/defreq.html

Very important:

Defreq uses fast external FFTW library version 3 (http://www.fftw.org) as Windows binary DLL (compiled with gcc under MinGW by Alessio Massaro), which support for threads and have AMD K7 (3dNow!) support in addition to SSE/SSE2.It may be downloaded from ftp://ftp.fftw.org/pub/fftw/fftw3win32mingw.zip. You MUST put FFTW3.DLL file from this package to some directory in path (for example, system folder C:\WINNT\SYSTEM32). Defreq will NOT work without it!

Good luck

[spoRv]

GREAT SOLUTION!!!

:thanks:

now it goes 10 times faster!!!

Thanks again AVIL!