Chroma Subsampling Tutorial | 4:4:4 / 4:2:2 Explained

[@rebelarena2557]

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[@PHY51C15T]

Short sweet and very well explained well done gents

[@jaddey2344]

Hi what would be the difference between RGB 444 6 bit color depth and YCBCR 422 10 bit color depth?

[@tatesmasterace]

Finally a Quick Tutorial I can understand in seconds instead wasting time to search online Thank you!

[@uzefulvideos3440]

Searched the whole web for the exact meaning of these numbers. 35 seconds into your video and I understood everything! Thanks!

[@pajeetsingh]

What did you even understand? Are you going to write the answers in exams?

[@frostvisto9610]

Short and punchy, I LOVE IT

[@huiyilim931]

THANK YOU. This is way clearer than what my professor was trying to explain lol. explained within 45 seconds, smh

[@sillydillydokieo]

Thanks for a real video that gets the correct answer across pain free.

[@Mr_Battlefield]

Thank you for breaking this *4 : 4 : 4* thing first video I watched about it. And that makes me so much more excited for HDMI 2.1

[@anixcool]

This is what called some Quality Content...Thanks... Subscribed

[@JeffBourke]

Doesn’t make sense, so for a 420 picture, every second row of pixels duplicates the row above?

[@barretthilton7717]

They didn't mention the Luma or grayscale channel which changes for every pixel. If it didn't, you would be watching standard def in 4:2:0. So pixel share chroma values for Cb and Cr in a YCbCr color mode, but it only works because each pixel has it's own unique luma value, which can knock a pixel down from 24 bits to 8 bits.

[@grisehue]

Hi! Great video! But what is best combination for Windows HDR? RGB 444 with 8 bit or YUV422 with 10 bit? I am trying to configure HDR in Win/Nvidia control panel...

[@dissidentjv5887]

blu ray = FullHD 4:2:0 blu ray 4K (master 4K) = UltraHD 4:2:0 blu ray 4K (master 2K) = FullHD 4:4:4

[@juaecheverria0]

Since it's taking all 8 pixels and making 4 out of 8 of them one node of information wouldn't it technically divide the pixel count by 4? It would've been very nice to see what the effects are side by side from compressing images or video.

[@jamesshort6856]

it isnt colour which is the same, only hue. the pixels have there own saturation and luminance

[@OpenFilmmaker]

Great explanation! Liked and subbed. Thank you!

[@ARC_VR]

Amazing tutorial dude! Absolutely what I wanted to know! I so love fucking with this sort of stuff haha.. Exemplary!

[@thelonepainter4760]

Rgb full or 444 for hdr gaming???

[@gilfalkovitch9669]

It's the same. Although you can only play 444 HDR 4K with HDMI 2.1.

[@AndyBHome]

Do they ever do 4:4:0?

[@chchris25]

Thank you

[@dongnguyen558]

4:4:4 8bit or 4:2:2 10bit?

[@thelonepainter4760]

I know! I need help on this! As well. Rgb full for 444 8 bit??

[@dongnguyen558]

I pick which ever has the most colors, therefor I'm currently using 4:2:2 10bit for my monitor. Because more the bit the better...

[@thelonepainter4760]

@@dongnguyen558 ok thank you! For desktop use change it to 444 8bit and gaming 422 10 bit

[@topfamous297]

my biggest problem: vlc can't play 4:4:4 yuv 10bit le. h265.

[@OldClam5]

Yes it can. I just tested it to make sure. Maybe you're using an ancient version of VLC? Regardless, you should switch to MPV, as it's way better in every way.

[@aquaevitae]

I'v understood that all streaming services and also UHD Blu-Ray uses 4:2:0 subsampling at the moment. So at the moment 4:2:2 and nor neither 4:4:4 material is not available for consumer at all.

[@claritoresdiano1021]

The problem is 4:2:0 it makes degradation. I learn on the website ntt-electronics com. They write article " Difference in Image Quality Between 4:2:2 and 4:2:0 Chroma Formats in Cascaded Codec Connections " It noticeable 4:2:2 image still in range 4:2:0 makes the image losing chroma during the encoding/decoding operation period.

[@aquaevitae]

@@claritoresdiano1021 Physical media is dying, but it's only a matter of time, when streaming services begins to offer 4:2:2 and even 4:4:4 material.

[@claritoresdiano1021]

@@aquaevitae In my opinion just online movie/film streaming or off-air can utilize 4:4:4 and 4:2:2 due to ITU-R BT. 2100 or ITU-R BT. 2020 for HDR-TV content. Generally TV broadcast or live streaming, I think they keep using 4:2:0 BT. 709 limited range for saving a lot of data transmitted cause most people still use SD and HD-TV.

[@henrypreminger4542]

thanks

[@matthewmcewen1]

My hdmi cables are all marked as high speed hdmi (which only supports 1440p 144 at 4:2:0, but I have verified there is no subsampling on my 1440p 144 monitor. I have checked it is actually running at 144hz, not 60. What is happening? I cant see any reason the cables are not subsampling (I dont mind XD) except that they may be under represented in their branding and markings, and are actually premium high speed.

[@armankizir2185]

Workflow and steps to make a 4k 4:2:0 to 4:4:4 1080p - any tutorials and guides?

[@jakobpcoder]

why would you?

[@armankizir2185]

@@jakobpcoder Well, at the time it's better colour grading and bitdepth. But found out it doesn't work that way

[@jamesshort6856]

the pixels dont share colour, they share hue, they each have there own saturation and luminance

[@pawo100]

Thank you man!!

[@reaux1560]

"What do the numbers mean Mason."

[@jamesshort6856]

it isnt colour, it is hue. all the pixels have there own saturation and luminance.

[@DollyRanch]

You're kidding! I googled what the heck a "4:4:2" was just yesterday! Very timely vid guys, much appreciated :)

[@sujithnair5672]

Thanks.

[@Detjo]

... and yet you said 4:2:2 was .... "shit" Jokers! Worst ever!

[@Mhysthyckque]

the best chroma is 0:0:0

[@dankbong4206]

4:2:0 nice

[@aslanyureky]

yellow pixel? meh

[@Chiramisudo]

Sneaky!! So basically the PS4 Pro (4:2:0) is totally cheating and it's not actually 4k, but really just 1080p with bigger pixels. No wonder my screenshots look like absolute rubbish in HDR.

[@jamesshort6856]

no, the pixels share hue, but have there own saturation and luminance

[@Chiramisudo]

@@nathangreen3661 I totally forgot to do this. I set it now, so I'll give it a shot tonight probably. Thanks! 😉🎮

[@GabrielConstantinides]

Couldn't find any 420 blaze it comments, I am disappointed with you Internet.

[@christopherdunn317]

Hi well if i was anyone, i would not listen to this fool, cause he got a lot wrong, go somewhere else !

[@LilMattiGaming]

bgs

[@tubesojourner]

Please remove the disturbing movie in the background! Just disgusting!