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Re: nVidia NGX investigation

Posted: Thu Oct 29, 2020 11:34 am
by Rocky
Hmm, I'm curious to know what materials you are working with that are gray-scale.

Re: nVidia NGX investigation

Posted: Thu Oct 29, 2020 1:24 pm
by DJATOM
My materials are 4:2:0, but I only want to touch Y component. Colors are fine in 99% cases.
In general I want to undo cheap upscaling method on Y plane, re-upscale with better option, resize to 1080p and add colors back.

Re: nVidia NGX investigation

Posted: Thu Oct 29, 2020 2:04 pm
by Rocky
Gotcha, thanks.

Re: nVidia NGX investigation

Posted: Sat Nov 07, 2020 8:04 am
by Rocky
It turns out that the ISR (Image Super Resolution) invocation is quite slow and will likely not be suitable for video at about 2-3 seconds per frame. So we have to fall back to the VSR (Video Super Resolution) functionality. I had been underwhelmed by it but that could be due to the subsequent X.264 encoding that is performed in the nVidia sample application. I will determine whether that is the case, and if so, then a filter could be a possibility.

Re: nVidia NGX investigation

Posted: Sun Nov 08, 2020 12:29 am
by hydra3333
thank you

nVidia NGX investigation

Posted: Sun Jan 17, 2021 6:27 am
by astrayred
Hi Rocky :)

Just wondering, did you ever find out what you mentioned regarding the quality of VSR? Is VSR inherently just not that great or was it due to the encoding?

nVidia NGX investigation

Posted: Sun Jan 17, 2021 6:38 am
by Rocky
Sorry, got sidetracked by bugs and stuff. Will try to come back to this. Putting it on my to-do list.

Hope you like your new avatar. Blame admin for that.

nVidia NGX investigation

Posted: Sat Jan 22, 2022 8:47 am
by mastrboy
Rocky wrote:
Sat Nov 07, 2020 8:04 am
It turns out that the ISR (Image Super Resolution) invocation is quite slow and will likely not be suitable for video at about 2-3 seconds per frame.
What source resolution did you test with? 1080p?
Wondering if it might be usable for 480p sources, speed wise?

nVidia NGX investigation

Posted: Sun Jan 23, 2022 10:04 am
by Rocky
Can't remember offhand. I'll try to come back to this.

nVidia NGX investigation

Posted: Sun Jan 23, 2022 5:19 pm
by hydra3333
I wonder if they (nvivia) have done anything to make it better since back then ?
Or was it one of those "look at this" marketing features :)

nVidia NGX investigation

Posted: Mon May 16, 2022 9:09 am
by Guest 3

nVidia NGX investigation

Posted: Tue May 17, 2022 2:50 am
by hydra3333
Thank you.
I wasn't altogether enamoured with it's stated description/limitations/performance so I guess I'll pass on the technology.

nVidia NGX investigation

Posted: Tue May 17, 2022 7:10 pm
by Rocky
@Guest 3

Have you tried it? Is it any good?

@hydra3333

Me too.