need to downscale a 1080p video then upscale to 720p with fillers

[zanzar]

i have an anime video that is 1080p but the it can be made much better with a bit of warpsharp and Nedi filters

what is the correct way to do this ? i want to take a video and make a 480p version of it and then upscale it to 720p with something like this

v = LWLibavVideoSource("d:\4.mp4", fpsnum=30000, fpsden=1001)
a = LWLibavAudioSource("d:\4.mp4")
AudioDub(a,v)
ColorMatrix(mode="Rec.601->Rec.709")
FastLineDarkenMod()
Sharpen(0.20)
aWarpSharp(depth=5.5)
nnedi3_rpow2(2, cshift="spline64resize", fwidth=1280, fheight=720)
Sharpen(0.20)
aWarpSharp(depth=10.0)

here is a pic
https://forum.videohelp.com/images/imgfiles/saXzXrI.jpg
you can clearly see this lines that could be fixed woth nnedi3

[theewizard]

Well I would go directly from 1080 to 720
Going down to 480 and back up to 720
Doesnt make sense to me

If you want two versions 720 and 480 then
Run the it thru twice once for each version

[zanzar]

Well I would go directly from 1080 to 720
Going down to 480 and back up to 720
Doesnt make sense to me

If you want two versions 720 and 480 then
Run the it thru twice once for each version

how can i use nnedi3 with 1080p video while i also downscale ?
i want the end result to be 720p version with nnedi3 filler a bit of other filters

[pandy]

Why the heck if you have 1080p you wish to resize it down to 480p then back to 720p - this have no sense at all to me - any reasonable explanation? What is your target - perhaps something else can be used to achieve same effect?

how can i use nnedi3 with 1080p video while i also downscale ?
i want the end result to be 720p version with nnedi3 filler a bit of other filters

You can use intermediate lossless file and quickly create both resolutions or you may use ffmpeg and at the same time produce to different resolutions

[zanzar]

Why the heck if you have 1080p you wish to resize it down to 480p then back to 720p - this have no sense at all to me - any reasonable explanation? What is your target - perhaps something else can be used to achieve same effect?

how can i use nnedi3 with 1080p video while i also downscale ?
i want the end result to be 720p version with nnedi3 filler a bit of other filters

You can use intermediate lossless file and quickly create both resolutions or you may use ffmpeg and at the same time produce to different resolutions

the main reason is that its not really 1080p... it just says so
i want to use the nnedi3 filter since it doesnt work when the video is all ready 1080p i cant use it
you can see in the photo clearly that it can be used
u dig?

[pandy]

the main reason is that its not really 1080p... it just says so
i want to use the nnedi3 filter since it doesnt work when the video is all ready 1080p i cant use it
you can see in the photo clearly that it can be used
u dig?

Not really but... GIGO...
Try to resize it back to original resolution then (it may be not 480).

[jagabo]

I've occasionally used the technique of downscaling and re-upscaling an badly upscaled video. But I don't think it's necessary with this video. Just using Spline36Resize(), aWarpSharp() and Sharpen() will clean up a lot of the aliasing artifacts and delivers a sharp 720p image. You can probably get FastLineDarkenMod() to darken the lines at 720p too.