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62,636 Views • Feb 7, 2019 • Click to toggle off description
00:00 Explaining the problem - "partial" video causes doubled and skipped values.
14:48 Trying to use digital noise to reduce banding (bleh)
19:08 Experimenting with other textures
23:34 Interlude: Nearest neighbor scaling: It's important, and Premiere doesn't have it.
19:08 Experimenting with other textures (continued)
28:47 Key insight: Order of operations matters!
30:44 Fixing banding in a video that was already rendered
32:39 Interlude: bicubic scaling vs. nearest neighbor
35:46 Fixing banding in a video that was already rendered (continued) Also, how to key a gradient and other complicated stuff
If you want to try this yourself:
Here is the source footage that I will be fixing:
• *Gradient banding fix FINAL SOLUTION ...
Here is my pixel overlay:
www.dropbox.com/s/8t1oxu7kh0nffh0/pixel%20overlay.…
www.dropbox.com/s/0j2s1ottsyikzbk/pixel-replicate-…
Here is a nearly perfect Bionic Beaver background
www.dropbox.com/s/6r21fof958bmio8/DITHERED_beaver.…
52:18 - Photoshop's fancy RGB dithering
1:06:13 - Discovering that YouTube uses different bitrates in the same resolution
(FYI, banding can also be called "posterization.")
Potentially interesting/useful links:
nomorebanding.com/cache
graphicdesign.stackexchange.com/questions/8108/is-…
medium.com/@stefanhrlemann/how-to-create-noisy-ris…
shunotes.blogspot.com/2015/12/banding-gradient-and…
www.loopit.dk/banding_in_games.pdf
forums.adobe.com/message/10902765#10902765
Playlist of all Taran's tests: (won't be very useful to anyone else, since you don't know the ingredients)
• Testing stuff
In particular, this video was very useful for me to figure out how different sizes of the faux-pixels are affected by different resolutions in YouTube: • 2nd Pixel overlay replicate test - b... (I'd watch the whole thing with a different resolution each time)
Testing lots of different kinds of overlays: • Video
Me and the captain arguing about "partial" video:
twitter.com/TaranVH/status/1080232381296963584
Continued:
twitter.com/TaranVH/status/1092850961909932032
Later, he admitted he was wrong, HAHAHAHA
Views : 62,636
Genre: Film & Animation
Date of upload: Feb 7, 2019 ^^
Rating : 4.875 (54/1,671 LTDR)
RYD date created : 2022-03-07T07:03:25.290253Z
See in json
YouTube Comments - 290 Comments
Top Comments of this video!! :3
28:04 "Only Linus's face actually looks horrible" hahaha
-Taran out of context 2019
134 |
Another legendary tutorial brace yourselves
127 |
Wtf, I try to study & read textbooks, listen to lectures, but they all put me to sleep. This though? My brain is eating it up like it's the most riveting talk ever. I wish I could utilize that for an actual marketable skill.
70 |
This video feels like when you are attempting to go to sleep, but your brain won't stop thinking up random imaginary conversations, or ways to solve a problem. Its the same coherent-incoherent babbling that happens then, and I love it. I have no interest in video editing, therefore I have no need to understand how to remove color banding in videos raw or pre-exported. But I watched the whole thing anyways because the way you talk about it feels exactly the same as I would imagine explaining a complicated topic to someone else, in my brain, when I am attempting to go to sleep. This comment is becoming the same thing. I've completely lost track of my original intent, just like the video, just like my brain when I am attempting to sleep. What a strange video.
Maybe the video seemed that way because I am half asleep right now, so the video was speaking to some other part of my brain...
39 |
I haven't watched the whole video because I haven't got the time, but the reason you're getting banding even with high bitrates is most likely due to poor, or even lack of dithering in Premiere's video pipeline, and also due to Adobe's h.264 encoder being shit (which it is). If it's the thirst, than nothing can be done besides fixing the already banded video with some debanding filter in Vapoursynth. If it's the second, you can try using a better encoder - with Voukoder you can export video from Premiere with x264 or x265.
The problem is - even if your final video is banding-free, you will still get banding on YouTube due to low bitrate and shitty encoders that YouTube uses.
90 |
"8-bit color" in RGB video specifically is referring to 8 bits per channel. The proper way to refer to it is "8 bpc" but there's a colloquial understanding that for video, 8-bit = 8 bpc. There are three color channels in RGB.
However, 8-bit video is not usually in RGB, it's in YUV. YUV is still three 8-bit depth channels, but one is just for brightness (Y) while the other is for color levels (UV) and the color levels can be understood as a sort of plot on a two-dimensional plane of color with red, magenta, blue, and green in the corners, and every possible blend between those somewhere between those extremes. 24 bits are still used, but 8 bits aren't color data, so 24-bit color is not a technically correct way to refer to YUV pixel data.
21 |
1:03:26
"Mark-west-brown-lies"
I started laughing hysterically that wasn't funny I'm tired help
33 |
Great. I watch a 1 hour, 8 minute, and 48 second video, and in the final 2 seconds, he tells me I can't use his solution to eliminate banding in live action footage. F&^%ing awesome.
1 |
The slow descent into madness was my favourite part. All joking aside, this was a fantastic video which has sent me down a rabbit hole; thanks.
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57:55 the video just got uploaded so it's highly possible that this first dither test was using youtube's 1080p avc codec specifically avc1.640028(137). When 4k became available, 1080p resolution must've been reencoded to youtube's standard vp09.blah.blah(248) hence the different test result.
1:06:51 same thing happens here. This LTT video got stuck on the vp9 machine for a week. You can still obtain the avc copy using youtube-dl.
13 |
I actually just did a ton of research into dithering, and personally I love the Floyd-Steinberg algorithm. Absolutely genius design.
2 |
Its amazing, how much stuff there is to watch out for.
I really enjoy listening to you and learning one or two things. Even though I'm not sure If I'll ever get to use it. Thank you!
3 |
The ammount of commitment you put into the art of making video is truly astounding. Props to you for really doing the research to better your product, and sharing it with others. You need to put up a dono link
1 |
While few of these videos are relevant to me, I admire you helping others in your field and not keeping any secrets. What you're doing is great for both amateur and professional creators alike. Keep it up!
1 |
I did notice the effect, but only like a millisecond question as to what you had done to achieve the effect. This was super cool, and it's awesome to see your process.
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Dear Taran.
Inside the secondary color correction you don't need to click the "plus" to ad a color. Simply click and drag to select multiple colors from the source/program view. 37:26
6 |
38:41
As Captain Disillusion once said:
"We are in fact allowed to use the chroma key effect more than once"
7 |
i have never heard a man so passionate about compression
this has been enlightening
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I know nothing about video editing but I love watching your videos. Thanks
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@driftingnitro6490
5 years ago
I dont know why im watching a 1 hour tutorial on gradients in video but i sure as hell ain't going to stop.
212 |