Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

blogs.nvidia.com

Post reply on HN
Print view View original

91–100 of 119 posts

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#91

Post by dr_kiszonka »

dbspin wrote: post #81
Grafikenjo wrote: post #22

Earlier quoted context omitted.

I think you need to understand that it is not always a 'artistic tool' but a money or knowledge limitation.

I'm a filmmaker... I don't know a single DOP or director who wishes they could work in HD but is limited by finances or knowledge. Again, shaping light is the essence of cinematography. Modern DSLRs far surpass the dynamic range (although not the effective resolution) of 35mm film. And yet the image they produce isn't comparable. When it comes to image quality, bit depth is enormously more important than dynamic rang…

Very informative comment! Could you please tell me what you mean by "effective resolution?" Is it the resolution in px or something to do with dynamic range? (I don't know anything about filmmaking.)

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#92

Post by zamadatix »

jiggawatts wrote: post #84
zamadatix wrote: post #77

Earlier quoted context omitted.

In what way? I've been doing it without issue on PC longer than I've even owned a Mac.

Firefox has zero HDR support, as an example.

The product is only for Chromium based browsers on Windows so surely there's no harm in enabling the product video for that combo too, no?

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#93

Post by poglet »

rixrax wrote: post #27

I recently had some old super8 films shot by my parents scanned into 1080p resolution in ProresHQ. Because of the poor optics of the original camera, imperfect focus when shooting, poor lightning conditions, and general deterioration of the film stock, most of the footage won't get anywhere near what 1080p could deliver. What I'd like to try at some point is to let some AI/ML model process the frames, and instead of…

You could look into RTX Video Super Resolution

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#94

Post by dannyw »

zamadatix wrote: post #78
CamperBob2 wrote: post #19

Earlier quoted context omitted.

YouTube tends to post a downscaled SD version first, then they encode and post the higher-res versions when they get around to it. This can take days in some cases. Meanwhile the creator catches the flak...

You don't need high res for HDR on YouTube (144p HDR is a thing there oddly enough) and the 4k version had already processed when I posted that comment (with no change since in HDR availability). Usually media announcements/large channels pre-upload the video so it's ready when they want it to actually publish to avoid that kind of issue though.

They probably use 144p for automated systems like ML recommendations, moderation and content ID.

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#95

Post by blackoil »

jiggawatts wrote: post #84
zamadatix wrote: post #77

Earlier quoted context omitted.

In what way? I've been doing it without issue on PC longer than I've even owned a Mac.

Firefox has zero HDR support, as an example.

That would be true on Mac also?

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#96

Post by rado »

babypuncher wrote: post #6
rado wrote: post #4

Earlier quoted context omitted.

Ridiculous. Like when James Cameron promoted Avatar HDR with an SDR YouTube video, while YT is perfectly capable of HDR playback.

At least as of a couple of years ago, HDR support on YouTube has been pretty bad[1]. I know they've been working to improve things since, but I kind of don't blame people for walking away from that mess. 1. https://www.youtube.com/watch?v=DwDWQyBF9II

HLG still not good enough?

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#97

Post by rado »

jiggawatts wrote: post #84
zamadatix wrote: post #77

Earlier quoted context omitted.

In what way? I've been doing it without issue on PC longer than I've even owned a Mac.

Firefox has zero HDR support, as an example.

FF on Mac shows HDR on full screen only, how strange.

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#98

Post by Dylan16807 »

cf100clunk wrote: post #15
aantix wrote: post #13

I'm curious - what's the best open-source video upscaling library out there? I looked back about a year ago, and it didn't seem like there were any good open-source solutions.

An HN search of ''Deep Space Nine'' and ''Topaz'' will show some great discussions here covering the dearth of such upscaling solutions, as well as some huge efforts before commonplace AI.

I found this single discussion? https://news.ycombinator.com/item?id=19453745

And that's by avoiding the word "topaz", where I see no story results with discussions and not much of comment results.

Re: AI-Powered Nvidia RTX Video HDR Transforms Standard Video into HDR Video

#100

Post by justinclift »

Adverblessly wrote: post #89
justinclift wrote: post #74

Earlier quoted context omitted.

It's not exactly what you're after, as it's anime specific and you need to process the video yourself (eg disassemble to frames, run the upscaler, then assemble back to a movie file), but Real-ESRGAN is very good for cleaning up old, low resolution anime: https://github.com/xinntao/Real-ESRGAN/

If you want to avoid manual processing, Anime4K runs in real time as a GLSL shader you can load into MPV (or Plex or something called IINA according to the readme) and still gives great results. https://github.com/bloc97/Anime4K

Thanks, hadn't come across that before. :)
Post reply on HN