What is Gamma Correction? - Video Tech Explained

Hi all! This is a new style of content I haven't done before, please let me know what you think in the comments!
I'm planning a few more videos in this style.
== Links ==
Support me: / videotechexplained
My portfolio: camoncrocker.com

[@davidstoneofficial]

I cannot imagine how much work went into researching and condensing all of this. Thank you for doing this. Dope explanation. It’s surprisingly hard to find comprehensive information on this topic. You have the magic touch!

[@adityams1659]

*Someone get this dude a medal!*

[@jarkkolaiho462]

Very well done. Every other gamma curve explanation I've seen has neglected some aspect (capture tech, display tech, human eyesight) of the gamma curve topic, so definitely learned some new stuff here today.

[@Daniel_WR_Hart]

One of them made a graph and got the x and y axes mixed up lol

[@entropydefined2651]

This was the most concise and understandable explanation of what gamma actually is and does. Thank you for not over complicating it!

[@petermeinhart3735]

your work is insane, I'm in this rabbit hole for quite a while and your videos help so much!

[@walterarlenhenry]

This is an extremely helpful, and remarkably well-constructed lesson. I confess to having been confused about this subject in the past, and now it is making sense to me. Looking forward to watching more of your stuff.

[@beautyadvocate]

Amazing video. This was the first straight forward, yet still in depth explanation I’ve heard. This was beyond helpful. Thank you.

[@EliasReda]

Great job explaining it, this is probably the only video I watched that knew how to explain it with important details without getting lost in them.

[@subaquariamusic]

You're clearly very knowledgeable on this subject and are great at explaining the technical aspects in an understandable way. Just learned a lot. Thank you!

[@InvisageStudios]

Another great explaination! You have a gift of simplifying complex things. Great work

[@xxhamedxx01]

I barely get overwhelmed! But this video is pure gold! Very well explained! And you my man, you have a bright future in front of you cause you can't explain things that properly unless you have both the knowledge and intelligence!

[@yeahright5663]

Such a well-thought-out script. Brilliant video!

[@celes123ovo]

Great job! I haven't known well about Gamma correction, and this helped me learn from fundamental scratch. Thanks!

[@danipe1998]

Hey. This is a easy understandable well made video. Thank you for explaining me a problem i had never looked for.

[@alish2001]

I've learned SO SO much from this singular video. Amazing job man.

[@ScottConverse]

Well done! More please.

[@danrpalmer]

I almost never comment on videos but I couldn't not do so here. This is one of the best tutorial videos I've ever seen breaking down a complex, somewhat esoteric topic into an understandable format to folk who have little or no prior experience in the domain. You've earned yourself a subscriber, and if you have a link to send a few bucks to you or a charity of choice, please feel free to reply with a link. Thanks for this superb content.

[@jacjacmtl]

That's the best video about Gamma correction I've ever seen. Very good job!

[@DrTexx]

Excellent video, really well broken down and executed too. Thank you!

[@stevebarlow]

Bravo! Been trying to make sense of gamma curves and this helped a lot. Thanks 😊

[@glenwoodfin]

Thank you! I had no idea what gamma correction was; now I'm starting to understand its application.

[@flyingkri]

Very nicely structured and informative! Thanks!

[@RuminInLove]

Awesome video, got more here in 8 minutes than I ever could in hours on various forums talking about gamma.

[@goemmer]

Thanks for the best gamma-correction-explanation on youtube!

[@VeranoggaSystems]

This was awesome, keep up the good work!

[@MrTerryRay1]

Thanks for this explanation. Now this whole area of gamma makes sense.

[@Debrugger]

Really good stuff, glad I found your channel!

[@farkasszakal]

Awesome. Pure gold information, very-well captured. Thank you!🙏

[@egjundis]

Thank you!!! Now I finally feel like Gamma vs. Linear make sense.

[@averinmarkstroem8577]

Great job dude! Watched maybe a dozen videos on the topic and this was by far the beat one! :) keep up the great work

[@iComplainer]

Same avid KZbin watchers here. Gerald Undone value or better right here. Subscribed.

[@ryorye]

Best explanation I've seen so far! Subscribed!

[@99SBX]

I agree. Subscribed!

[@loicleray]

Thank you for making such an informative and succinct video. Much appreciated!

[@georgecatterton5598]

Amazing work! I wish I could thank you more!

[@dreaminmc2]

Best explanation I've seen so far

[@shnake_case]

Thanks for great explanation! I think I am your 1000th subscriber 😊

[@seth.]

Nice job man! This was a fantastic video.

[@dougkruse3766]

Great info, and very well done. Should be way more views.

[@camryhsalem5139]

You explain Very complex subject in an excellent way you are talented Man

[@NickGoldston]

Extraordinary job. Thank you

[@NibuThomson]

Appreciating your efforts👏👏👏

[@florubenberger]

That was a wonderful explanation - thank you very much!

[@jleocarmo]

Fantastic video, congrats!

[@daftstuff6406]

great concise explanation of this complex topic. thanks again.

[@sightlessghost289]

Underrated creator, this video was amazing my man.

[@ravensatodds]

Great explanation mate 👍🏼

[@JL-vk1rs]

fantastic video man, keep them coming!

[@JohnMoran]

This was super interesting, and something I look all over for.

[@QZ_AU]

Great video!!! I always ignore gamma in making videos. Your video explains it well!

[@rajatbanerjee3413]

Splendid...keep up the good work

[@kencritchley5546]

Thanks for the great info. Well done.

[@goemmer]

I have the feeling that you could get a great KZbinr. Keep making those videos! Greetings from Switzerland.

[@ddddddddd9417]

Great explanation buddy. You are talented

[@richzhart2374]

Im really impressed! thanks for the explanation

[@Gam3rKillz]

Your videos are so good, thank you

[@eggs-benny]

awesome video, thanks for explaining!

[@K-Visuals]

Thanks for making this! This was very informative for me :)

[@marcosmartin7487]

I have learned a lot from this video. Thank you!

[@calogiga]

Thanks for this explanation. It was very helpful.

[@cassandra101ism]

Great information!! Thanks for an awesome video!

[@jannespollet4830]

Thank you, explained very well!

[@masoomehtanghatari8750]

So great and informative video. Thank you so much

[@robmaric]

This was amazing. Thank you!

[@constantinasay2095]

loved it, please do more like this content

[@valerievnaa]

Thank you for explanation!

[@smit17xp]

amazing explanation. Thanks

[@mariahezra]

This was so helpful! Thanks so much!

[@mccafga]

Excellent video, thank you

[@mickysingh483]

Great explanation, keep it up 👍 👏

[@ianharper6015]

An excellent video. Thank you.

[@priesjensen]

Great video! Keep going :D

[@computate.d9140]

Thanks! Very helpful video!

[@anomalyp8584]

Nice job dude!

[@user-tm3yj8gg6p]

Great explanation

[@7guitarlover]

this is so awesome ! thanks buddy !

[@calmetosis]

Good stuff, Thank you!

[@user-du3vo8hd1j]

Thank you vey much, this video helped me a lot!

[@mevsimpossible2]

Really enjoyed this video

[@mcarril]

Great video! Good job!

[@FirstnameLastname-xo3tq]

Excellent. Thank you.

[@GhaithAshkar]

wonderfull , that is the most ever best explaning i've been see

[@daracascansani]

Thanks a lot! Very well explained... :)))

[@Haligonian]

Awesome video! Thanks

[@hunter8980]

Very genius! Very impressive! Thanks!

[@lahiru3908]

Damn straight to the point. Love

[@adomdarojat3074]

very well done

[@agustinlawtaro]

Great video!

[@michaelzhang2532]

Great Job! Thanks!

[@gespertino]

Hi. I love your videos, you put a lot of work on them and they are very concise and informative. However, there is a fundamental mistake in this one you probably might want to revisit. Gamma correction is a curve applied to "cancel" the curve from a gamma-encoded image. Our non-linear perception is the reason for the encoding, not the correction. We want to see the images in ratios as close to the ratios present in the capture image as possible. And that means that our eyes will have to receive light in the same ratios the camera "saw". If all digital images were 32-bit float images, gamma correction wouldn't exist, as cameras would capture and store linearly, and displays shouldn't have to apply any curve to them. But since we're still using 8-bit integer images a lot, computers need a way to store them in that precision. Linear won't cut it, because of our non-linear perception: our eyes are more sensitive to shadows, and 128 levels of brightness for the darker parts of the image won't be enough to represent a smooth gradient, you'll se a lot of banding. So, images have to be accommodated to allocate more bitdepth for the shadows, leaving less precision for lighter parts, the ones we have less sensitiity to. That's gamma encoding, and that's the bending gamma correction cancels. You have all the pieces there in your video, but the leading idea is unfortunately wrong

[@gespertino]

And to address the question: "why linear images look wrong when displayed directy" that most of the people reading this might have at this point, the answer is simple: Monitors are applying a gamma-correction automatically, but since the images not gamma-encoded (when you dump linear to the display) you end up looking at a non-linear image.

[@dillonkellerman2549]

Thank you VERY much.

[@PopeDope69-420]

Hey man, love the video. I’d love to know what kinds of books or even textbooks you read to learn this stuff. Any chance you could let me know a few titles? :)

[@ashishjatiani3356]

Thanks a lot!

[@JoeKawano]

“What is Gamma Correction? Why should I care about it?” 😅 😅I’ve always been wondering the same thing.

[@JOHAN_PERJUS]

ERRATA: Adding ONE light, as in the example, does not DOUBLE the amount of light (or photons) hitting the paper, this is because of something called the inverse square law. In order to DOUBLE the amount of photons it would require adding THREE additional lights. Please correct me if I am wrong. Otherwise, thank you for a very well explained video on Gamma curves. Kudos for the 4K upload as well!

[@VideoTechExplained]

I'm not sure how the inverse square law applies in this case. In my demonstration, I'm assuming the two lights are perfectly pointed at the exact same spot, in which case there would be twice as many photons reflecting off of that point. Granted, the alignment wasn't actually perfect in my practical demonstration, but the point still holds. If you take two identical sources of light and point them at the same spot, there will be twice as many photons reflecting off of it as there would be if there was only a single light source. However, while the number of photons is doubled, our eyes don't *perceive* the spot as being twice as bright

[@sajolsajol8393]

Bro! Thank You>>>

[@AlexUdilov]

Thx man! It is very

[@roberttrisca8210]

Thank you.

[@JBGau]

You are good! Thx

[@pixelman457]

this dude is so underrated

[@rackzz7084]

All respect. I'm an artificial intelligence cs student and this is way better and more interesting than the stuff my prof did

[@VideoTechExplained]

I am also a CS student actually, I feel your pain.

[@user-ny9se4mu6l]

Man you re like GOLD in youtube. Where did you came from ? OMG that knowledge and so easily explained. Subscribe for sure. Can i have your contact information ?

[@maitraiyakulshrestha439]

You have great content brother, sending you love from India. Maybe you can do color grading breakdowns of famouse films or web series