This is an extremely good explanation of Luma.

HOW DOES THIS NOT HAVE MORE VIEWS? This is an incredibly well put together video, absolutely love it. Can't wait for the vide on chroma!

I love the way you take such a complicated concept step by step like this. Also, seeing the domesday project mentioned *and* a Linux desktop pushed me over the edge and I subscribed. Good stuff.

I totally underestimated what I was going to learn in this video. You totally just blew my mind. Awesome work mate.

I really hope your channel gets big. I just came here from Game Sack shouting you out on Twitter and this is the exact kinda technical stuff I love!

I've been trying to understand these concepts for literal years (as a photography and video enthusiast who kept coming across them), and thanks to your video I think I might finally understand them. Thank you!

That's what I would call going in depth, holy smokes son. Very educational and well explained. Thanks!

This is one of the best produced explanation videos I have EVER seen.

What a fantastic video, man. Please continue to dive into these deeper video explanations. Your visuals help make this very complex topic approachable for even modest hobbyists.

I was working on a project and stumbled on NTSC stuffs, I had to get head around lot of complicated stuffs before I could actually understand it. This video summed it all up perfectly. You earned a dedicated subscriber for sure now. Gonna binge your vids somday

This is one of the most informative videos I've seen on this topic. Great job!

Well... this video is using Luma too! Modern codecs use YUV colorspace for video, where Y is Luma. So, almost any digital video you see has Luma component. HDMI can use RGB colorspace but in most cases it uses YUV. Yep! Your fancy flat OLED TV is still fed with Luma :-)

Luma luma ay, luma luma ay, luma luma luma ay... Btw I've loved every one of your videos so far. Super informative and a layperson could follow along easily, very digestible. These videos are about things I've always wondered as a nerd and a mildly technical person.

Great explanation. I have seen several explanations before elsewhere, but the way you presented it brought it all together.

Love how all your videos sounds like a full 20 minutes TV commercial from the 90s

Awesome explanation. Awesome ending theme. The Tyrian OST is truly unforgetable.

This is such a good and easy to follow video, really helped with understanding the concept of Luma properly.

Such an informative and professional video. Great job!

This is such a good video. I can’t believe you make content this amazing with such few views. Thank you for you what you do!

Man I really can’t tell you how much I am love the deep dive videos you make. I feel like the more I watch the more I get an understanding of how this all works and it helps with the stuff that I actually make. Keep up the great work

I think another interesting effect one can notice in the squirrel example, is that the oscilloscope is more sensitive to luma changes for bright values than for dark values: the curve makes huge slopes when analyzing the background in the sun, which however doesn't appear that "contrasted" to my eye. And oppositely, it makes smaller oscillations when analyzing the dark eye and the brighter face of the squirrel, which look way more contrasted in my opinion. That would confirm that the human eye is more sensitive to changes in the dark ranges than bright ranges.

Ive just stumbled on your channel via MLiG. Absolutely love your content and the way it’s delivered. Thanks.

Fantastic explanation of Luma, thanks!

Absolutely astounding production! Thank you for captioning your hard work. Happy Day! (Mentally or physically marking off the two line captioning area in the preview field of your editing software will help to prevent important things in the presentation from being obscured)

Thumbs up for the Tyrian remix. Heard it and felt so much nostalgia

Your videos are nothing short of amazing!

This was a great video man. Good work. Can’t wait for the next instalment.

You are good in making this kind of video. It doesn't look at all like a video game channel.

What a fantastic video! I really enjoyed this. I usually think the only problem with your videos is that most seem too short, so this was a great one. Really thorough analysis and explanation.

Great explanation! Great vid!

your channel is simply a TREASURE TROVE!

Great video. The oscilloscope really helped solidify the understanding.

This is a great video, I'm sharing it with all my technically minded friends! Is there a follow-up video on Chroma coming soon?

This channel is amazing!

Excellent video. You explain your subjects very well and I always look forward to learning something new from your videos.

This is my new favorite channel! Thank you so much!

I learn more from you than my TCU classes. Don't stop

This is definitely my favorite video of yours. I'd love to see more in this style!

There’s a fun backronym for NTSC and PAL. Because PAL alternates the direction of the color signal every frame, shifting the hue of the whole image makes the whole image not look that bad, which was important because NTSC had a problem with calibrating the hue. So NTSC was called “never the same color” and PAL was called “perfect at last”

Fantastically informative! I'm not a total novice with this kind of stuff (Technology Connections helped a bunch before I found this) but you've really helped with the more nitty-gritty.

NTSC - Never The Same Color

Will we get there? I find direct chroma generation in Atari, C64 and NES quite intriguing :D

Luma is a character in Super Mario, usually affiliated with Rosalina, and can be mainly found in the Super Mario Galaxy games.

I suppose I've been enLIGHTened!

Great video, easy to understand.

How did I find this channel just now?

Wow, took me a while to understand some concepts but this is an amazing video!

Excellent description! Thanks!

What a great video. You're really god at this. I'm going to see your other videos!

Apologise for not directly talking about video display, but in UI programming (or UI design in general), knowing the relative luminance of colour can help determine the readability of a text element, whether you want to use white texts or black texts. Sure, you can skip the maths altogether, and just eyeball it, but what if, say, you're programming a game UI and granting the player ability to change the UI colour in-game, or just a pedantic designer/having a pedantic client? You can still skip the math and apply outline to the text, but what if you want your game having pixel art aesthetic to the max (down to 1:1 pixel scale), or your design guidelines doesn't allow outlining text? The relative luminance formula can help you switch between white text and background text according to the background colour the player choses, in-game. You can also use the same formula to limit the colour from getting too close to black (0 RL) or white (1 RL) without clamping the value of each primary colour.

Outstanding work.

Absolutely excellent video. Great job. Thank you for schooling

5:26 Technology Connections approves of your color preferences

What I've always wondered is why electronics use Red-Green-Blue and not Red-Green-Violet. It seems like we're missing out on an entire section of the light spectrum.

You really love to explain don't you? These videos are very good and helpful.

Surprisingly interesting.

Why didn’t I have teachers like this in high school?

If you ever get the chance, why not talk a little about PAL-M? All I really know is, because it was unique to us, it brought tons of problems not only for TV set manufactures, that either had to create whole new models or make adapters for existing ones at the time, but also for TV networks, that had to make a run for getting most of their programs working with color XD. Brazil was always really weird when it came to television broadcasting, even to this day with digital television; we, again, modified an existing format to make "our own" XD.

So I now understand how my color calibration tools work

xyY instead of xyz when creating a three dimensional representation. Absolute genius on their part.

Joe from GameSack sent me here. Not disappointed at all.

Ah, the devil's pitchforks connection that you need to screw to the back of the tv

I will always be more impressed with the history of CRT and light than I will be for AI and other "modern inventions".

This was a very interesting video

Great video, keep on going!

amazing video. I'm glad I found it!

freaking awesome video, i wanted to see the color signal on oscilloscope tho

1:05 The top image has 5 colours and the bottom has 6, neither of which is 7, nor what Newton proposed. Ironically, despite understanding colour as a science already for hundreds of years now, it is still taught incorrectly to almost everyone. Part of the confusion comes from the names of colours changing over time. A good example can be seen in “Roses are red, violets are blue”, which simultaneously shows that what we now call blue used to be called violet, and that what we now call red used to be called rose. Another part comes from how difficult colour reproduction used to be, meaning that old scientific documents with displayed colours and associated names are not as accurate as we can show today. Another part comes from the fact that the colour we get from mixing each end of the colour spectrum does not appear anywhere in it. The last major part of the confusion is how Newton separated colours for naming. So, Newton gave the colours names that we still call them today, however they don’t line up like he named them anymore. He wrapped the spectrum into a circle, split it into 12 equal intervals, then combined them into 7 named parts. They were red, orange, yellow, green, blue, indigo, and violet, and this was based on the musical scale. Not too long after Newton, another scientist split this colour wheel into 6 equal parts, and changed some names. Now it was red, yellow, green, cyan, blue, and magenta. Every colour could be made by adding red, green, and blue, or by subtracting cyan, magenta, and yellow. This is why screens use RGB(W), and printers use CMY(K). This scientist’s colour wheel has been misinterpreted and incorrectly taught to this day as red, orange, yellow, green, blue, and purple. For anyone interested.

It was... illuminating.

KZfaq needs a function to watch videos in B&W

I think this channel is spectacular. I also think I've figured out what YPbPr means. If Y' is the Luma, and R and B are colors represented, then G = Y - (R + B), right?

Very thorough explanation! God bless

Outstanding.

love this channel :)

Oh dang that's Tyrian

20 minutes we’ll spent!

which song is used from around 09:14 (edit: found it - wolf and raven ''on the run'')

This video reminds me of some developer thing for I think it was Forza 4? They were claiming their sun was much closer in-game than other games, by adjusting the luma scale in the game. It might have been Forza Horizon.

ha! much to take in... OSX have been able to see and compare 3D space colors since more than 10 years ago.

This must be related to why nes, 2600 and c64 can't show yellow.

Maybe it's the videos I'm used to watching, but I kept hearing "the CIA" when CIE was mentioned For a second I thought they'd taken a break from toppling democracies to institute a color standard.

Luma luma yay

Isn't NTSC color a little redundant ? Since NTSC is "never the same color"?

Presentation level: Wizard

can i ask how did you do this video ? did you read books or did you take a course or what did you do ? because this information is not so easy to find

Well, it looks like lunch will have to wait

Like si llegaste aquí por que el gran dios artemio lo recomendó gran recomendación y recelo video.

*LOL I thought this video was about component cables or just RGB sir*

What still bothers me is why the different color spaces? Man, when I decided to purchase an used N64 to mod it for RGB, I easily installed the mod. The problem was, how to get it working on my CRT component video input without the money and a job to buy the overpriced RGB scart to component transcoder/converter and the high priced RGB scart cable? Well some knowledge and creativity! As I bought an VGA to component transcoder for my Dreamcast as flat TVs where stoping VGA support, I used my brain and converted one of my Dreamcast VGA box into a universal RGB box using a DB9 connector. And to evade the problems of C sync, sync on luma and sync on composite I used the Luma from s-video to directly output it's signal to Y on the TV, and it worked! Correct me if I'm wrong but the s-video Luma is the same as Y from component video right? This is why it works. And great video, if you could, I would like a video explaining why the different color spaces exist and their differences (if not already made one, I just discovered your channel).

our white light is probably different from planets around other stars...

Llegué aca gracias a la recomendación del gran Artemio Urbina

#justacommentofappreciation

0:39 Why is "black and white" still here? Just to suffer?

Y.. you haven't heard of any other way to disarm the PAL have you, from your bosses or anyone?

This has probably been asked before however, why not use "z" in your explanation to represent the third dimension for the spectrum? I understand that "Y" is the correct variable to specify the Luma value but, it seems odd to use the letter "y" again when "z" is well known to generally represent the third dimension. Also, I do understand the case of a variable does technically make it differ from one.another.

Don't forget chroma...the crazy cousin

Give these guys a show on the Nat Geo or the Discovery Channel. Goodness knows there is nothing on the latter but tripe and reality shows anyway, we might actually start learning shit again :P.

Show

The stars from Super Mario Galaxy

God damnit fine I'll learn what Luma is KZfaq, fuck.