The Incredible Math Behind the “Divide” Blend Mode! - Photoshop Tutorial
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- Опубліковано 4 сер 2024
- Why Does the "Divide" Blend Mode Exist? Let's take a deeper look at a magical application of the Divide blending mode to easily remove any color cast, and then, discover the amazing mathematics of how this blend mode works.
In this Photoshop tutorial, we will develop a deeper understanding of how the divide blend mode makes the colors interact and how the mathematical formula applies to the RGB values of the resulting color.
I hope this video helps you. Thank you so much for watching :)
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This tutorial is great. Makes us wanna divide and conquer. (;
Hey where did you get the beats in the intro
*Rule No 1:*
_never say_ *"Divide and Conquer"* 🇬🇧
_on an _*_INDIAN_*_ channel.. 🇮🇳😂_
@@DebzLife lmao ikr
@@DebzLife Yeah we dont want another partition 😔😔😔
Divide And Rule
i went and did a photoshop course and learned maybe 10% of what you teach
seriously this guy dosent just show you how things work
he explains to you how they work
fantastic teacher,wish you the best man
+1
Photoshop courses aren't supposed to teach you everything, just the basics. The only way to become advanced is by watching videos like this. No book or course can cover all of Photoshops capabilities.
He is indeed also a very good educator.
Yeees! Best teacher EVER
Yeah, he is one of the few I recommend frequently. :)
So Unmesh, when are you going to reveal to us that YOU are the creator of photoshop?
😯
Nicolas dc LOL!
Hahahah we can't wait
Hahahahahah we can't just wait, because this my teacher is just one of the best teachers on UA-cam. Always on point
😮😂😂😂😂😂
why is no one talking about the perfect handwriting?
Thought the same thing...penmanship to match his photoshop skills.
Really amazing
@@brennholzvermieter was about to say the same thing.
Because its so perfect that looks like a font 😑
@@DJVARAO "in the next episode, I will show you the method to transcribe anything you write into a font"
20 years wondering what the hell Divide did.
20. YEARS.
i feel u bro..
Now spend 20 years wondering what Subtract does.
multiply adds color. divide removes color. I thought everyone knew that...
@@Dumindamadushan Multiply does not add as plus, it is multiplied
same here bro...mind-blown
Hi Unmesh, I found another use for divide: advanced color masking! I noticed for any given color in your underlying image, there is a range of "Divide" colors that will make it turn white: anything from the underlying color itself, down to black (in brightness). Anything brighter than the underlying color will get closer to white aka doing nothing. So if you want to make a mask of a particular color in your image, pick that color in your Divide layer, then play with the brightness to adjust the strictness of the mask. Then merge your layers, desaturate, and use Levels to keep the white part of the image and make everything else black. Now you can copy this layer and paste into a mask, and bam, only a particular color is selected. It's like an alternative to the built in color range selector with more control
Oh wow. That's amazing! Thank you for sharing.
Homework - this works in premiere pro tooo. Create a color matte over the clip and change it to divide mode. Simple boom
Also in filmora too 😍
Life changing information right here
You know well, what actualy in my mind during listening to this awesome guy 😁
Problem Solver... 🤲🙌👐
Wow.. thanks mate.. this is i am looking.. 😍
Does anyone know how to do this in Adobe After Effects. I'm not sure how to do this. I'm creating a new solid layer over my footage and then selecting the color picker on something that should be white in my footage and changing the blend mode to divide but doesn't change anything. Any help would be appreciated.
I love everything about this video:
1. Your enthusiasm to teach
2. Your desire for people to understand the tools so they can use their imagination and accomplish more
3. The heartfelt message. Thank you, let's Keep Creating 🙏🏿
ADMIN HERE: Your great feedback is so greatly appreciated. Thanks so much.
this channel blows my mind. he's just SUCH a sweetheart & he offers more insight to a program i've used for 13 years than any course i've done in ANY trade.
yup he is my favourite.... i want his voice as my Siri, my GPS voice.... and I'll take his voice for my own voice as well. whenever I get stressed out I would just talk to myself.
This is expansive knowledge for FREE!
HOMEWORK: I use the divide layer a lot when SCANNING DRAWINGS with my phone. The light is often not consistent over the whole page and I pick the color of the paper from different places and paint a new layer which I then blur and set to DIVIDE; this will render the paper white. I can also make a copy of the layer, blur it and use that as a divide layer, or even remove the drawing from the paper on the copied layer with content aware fill and use that as a divide layer.
I sometimes paint on a light brown surface (unbleached titanium), and the color of the surface can be removed in tha same way.
I think the formula is more intuitive when written as: base layer*(256/top layer), that is each of the RGB values are corrected with respect to ratio between the RGB value for white and the RGB value for the top layer. White has RGB values that will make the ratio 1 and there is no change. 50 % blue will reduce inly the B value by 256/128, that is take half of it off, and make everything white.
I love the channel and though I've been using Photoshop since the last millenium I learn so much. Thank you very much!
/Claus Rye Schierbeck, Illustrator, Denmark
Excellent tip ! I agree with you, your formula is more intuitive.
Nice one
So do I for newspapers scanning, using a self-written Python plugin. However, the formula brings up text brightness along with background removal in an indiscrimitatory manner.
I couldn't focus on the formula because your Handwritings took all the attention.. Btw.. Love your new intro
The first thing I did was look at the top of the screen for the font he was using. Then I realized he wrote it by hand....*feels bad*
Awesome. :)
Ohho Imran Sir 😀
How do you even find these little gold nuggets? Hope you are well and safe, and thank you for continuing to connect our little pixelated world!
Unmesh: B stand for?
Me: Blueeee (sipping water)
Unmesh: Brightness
Me: choked
lololololol! SAME! 🙈
hahaha
haha i screamed out black. then he said brightness. lmao uhh..yea thats what i meant.
@@Bananapocalypse same
😂😂😂
This is the only youtuber I give like to every video.. cause all the content is high quality
Homework result: When bringing an image into Photoshop that has been split-toned, your divide technique brings back at least the illusion of neutral whites, without losing the rest of the chosen split-tone effect. Thank you Unmesh. There was always something about split-toning that I didn't like. This fixed it...
That just might be an easy fix to bad green screen footage. Thanks so much for sharing!
Also, Unmesh, if you are reading this, I just want you to know that you have the kindest heart I have ever seen. It's really incredible that you care so deeply about your audience, and that you are willing to provide this content and share your talents with the world for free. You are a wonderful man, and I just wanted to give you my thanks. I don't know what the world did to deserve you
I have been watching your photoshop videos for about 2 years, and all i can say is that you're videos are clear and straight forward, keep it up man!
You are best photoshop teacher I have ever watched his tutorials. Thank you
For all of you who said you’d never use algebra outside of high school! I was a teacher for 18 years, so you just proved me right!
Basic Algebra is like any tool e.g. hammer or chisel you use for the intended purpose. You should have taught that in your 18 years.
I won't call this algebra but rather substitution
We don't use algebra. We use Divide. :-D
Who says they won't use algebra?
Calculus I would understand, but just counting things is already algebra.
But thanks for teaching math, it's a demanding subject and I am sure your students appreciated your hard work :-)
Did he just make a pun at 3:00 "nothin' can stop me I'm ALL THE WAY UP!" 😂
wishing you and your family stay safe! this video was another great help!
The best human being out there. 3 yrs following this channel and it always keeps getting better. Thank you bro!!
Great method to remove color cast. I used you tutorial to de-aging old paintings images. I have "restaured" Davinci's Mona Lisa and it look even more beautifull.
Wow - this blend mode works a treat on color casts. Unreal. I have struggled with different methods for correcting color casts and nothing is as good or as simply as this. Thanks for this tip!
Your videos keep getting better and better. Really fine work and attention to the right details.
I opened a photo to retouch in PS and decided I needed some music to work to....
When the UA-cam homepage came up, this was the first recommended video - Had to click it!!!! ...
Guess the first thing that I did to that image!
Damn! I love it!!
Being a portrait and fashion photographer, this really is a game changer for me!
Thank you for your amazing tutorials, Unmesh!
it was really interesting to learn the maths behind the Divide blend mode.
time to do put it to use then
Amazing application, Your Deep understanding of the tools makes you the best
A math and Photoshop tutorial all in one 😊
Great video (as always)! For me, knowing the formula opens the door for virtually every combination... Eliminating color cast for sure - - and also, determining what color scheme is needed for the Divide Blend layer to create any "target" color you desire (just work the formula to solve for the variable needed).. When combined with layer masks, this gives the user the ability to quickly modify any image to the color mix desired.. Very cool!!
I could see this being very useful for Real Estate photography. I tried it out on one of my photos and it worked wonderfully.
Wow, this is great. I haven't found a tutor who explains concepts as you do. You made this seem so easy, Unmesh. Incredible stuff.
And the last message is just too beautiful. You are such an inspiration to the whole creator and creative community. Power to you, man!
Stay safe.
Thank you so much. I learnt something new
Thanks so much for this and all of your great instructional videos! Super clear and concise.
My 16 years old daughter says, 'This is how that guy can do all this stuff. Somehow he understands how all the math works and then makes up applications for it' :)
Homework : we can add hue to the highlights Or in B&W photo change the brightness or make a monochrome photo out of it.
best explanation to remove colour casts from portraits I`ve seen. Thank you Unmesh
Very helpful! Thank you and stay healthy!
Awesome video, your video quality is getting better & better, amazing, learning lots of amazing things from you, keep it going.
You are just the best world's teacher/instructor that I have ever seen (and I am a very old person). Thanks for your tutorials and for sharing your knowledge in such and incredible way. Cheers!
Wow your videos have really changed over time. Loving the intro animation, music, and the circle around where your mouse is going. Glad to see your speaking style hasn't been lost. Thank you!
Just Wow! How simple to use such complex calculations. I quickly did a few samples and was in awe at how easy it was and how effective it was. Unmesh you truly are a very generous genius. Thank you!
You know , you deserve every bit of success you have now !
Amazing as always! Thank you so much for all that shared knowledge. With you my photoshop skills are in a permanent state of improvement !
i am an old retired man,having passion for photography since childhood.All my photography was SOOC,I was ,Still am,very scared of Photoshop.This lock-down gave me a chance to sneak into your channel.I was amazed by your technical tips.From the shadows of illiteracy,my curve of knowledge seems to be moving towards mid-tones.I am grateful to you to tutor me for free.I am mesmerized by your knowledge of Photoshop and your method of teaching intricate details in every episode.
As usual, you da man. Thanks for the great colour cast tip.
wish u were my math teacher :) i've learned a lot from you in years... thanks for everything.
Thank you. That was a really simple way of removing colour casts. You are an amazing teacher
U r true master of photoshop, I alway liked ur video before watch.
Thanks again.
Your videos are 💕😍amazing bro. I love Photography and your videos helps me to get those Finishing result.
You can use divide to remove folds and creases from paper and similar materials. It's great for isolating text.
Perfect!
Just tried it for whitening eyes at the end of my retouching routine. You have to tune it down of course, but works like a charm! Thank you so much!
Thank you. You are the finest teacher I've ever had.
Thank you Unmesh. I've tried this out on a couple of photos and it's going to make a huge difference to my retouching workflow.
Thanks--another perfectly clear explanation!
Your videos are always so amazing... Great job!
As for the other uses and maths:
You can replace any colour with any other colour:
- Take the numbers of the selected background colour
- Take the numbers of the colour you wish to change it to
And figure out X (the numbers of the colour you need to divide by) with the formula.
You can kind of colour grade with this if you have a colour palet :O
Thx!!!
I never knew what divide blend mode was for and never knew how easy removing a color cast could be. You the man!
I've watched the video until 4 : 05 in order to learn something I immediately can work with and watched the remainder video because your tutorials totally rock. 🤗
Homework is
to find another way to use divide blend mode and i know that this blend mode also used to align layer perfectly with each other if layers were aligned perfectly it will became all white if layers were not aligned it will show some art effect which indicates the layer were not perfectly aligned As simple as that.
This would be a great technique to use with filters with a known color cast, such as many ND filters. It would be an easy job to take a blank photograph using the filter and a white light source. The resulting image could then be used as the divisor default color for every shot taken using that filter; only needing possible adjustment of the brightness.
Very neat idea, I've got a load of images with heavy ND color casts! I wonder if I could then load it as a preset into Lightroom?
You're an absolutely great person for taking your time to do this. Great content! Best wishes to you and your family.
Wow! That's brilliant!
The divide mode worked very well. I also used it for whitening teeth and eyes on separate layers with mask
8:15 explains so much about my challenges using my massive math skills to play with CSS on websites.
And me playing CS
Best PS Channel EVER!!! Thank you, Unmesh. From Germany with Love 🍀🍀🍀🍀🍀🍀
Another good one! Always learning something new from you, Unmesh!
After see two minutes only .. you are the bessssst
greatest teacher in the world !
Great stuff! the man with endless gifts that just keeps giving...stay well and thanks for the amazing tutorials.
Wow! This changes everything! Thanks man! I really enjoy your gift of teaching.
I use this every once in a while. But i never knew the maths behind. This is useful. Thanks...
Apologize if already mentioned somewhere else. We can use it to do pencil sketch -- apply Gaussian Blur to the upper layer (with the Divide mode).
bonjour tres juste, merci
Yet again master class.
Trying this for sure and exploring more
You really help me every time i watched about 50 videos and was very helpful
Thank You! and Stay Safe :) Blessings
Homework- Divide blend also works in Premiere and After effect .. to balance white color .. thankyou ... its really amazing ....
Unmesh you play an important part in keeping us sane during quarantine...... thanks so much
All vids that u did are really easy to follow that even newbs like me can do it. All of my current knowledge regarding photoshop are from watching ur vid. Really, u have my greatest thanks.
You have to be kidding me, Unmesh.
I would love to see a video reaction of yourself discovering something you didn't know in Photoshop.
Your writing is awesome brother...❤️
Unmesh - SALUTE! The only PS tuition needed. Thanks.
I keep watching your each videos. You are doing so cool.
1: Divide takes dark stuff and makes it very, very bright
2:it also make ghost like effects...
It learned these when I was understanding blend modes online
3:color correction ( learned from you)
How can I add the "divided color" back? I want to apply the color that divide removed to another image. Does anyone know how to do it?
Effects of lockdown, Unmesh got beard 😂 looking good and excellent tutorial as usual 💕
Excellent Unmesh!!!! Simply solved a problem I've had with my old sony camera in a few clicks.... stay well!
Another great video contributing your vast knowledge to the people! You sir, are an ambassador of not just photoshop, but of human compassion and sharing....it is readily apparent. Thanks for the lesson!
Incredible! right infront of our noses. Perfect White Balance Solved Instantly! (".) Thank you so much Sir! i'll watch every advertisement on your videos promise.. (".)
You are ridiculous awesome.. Feels like you are the developer of PS.
You just cured my mental blind spot where the Divide function was concerned. I have walked right past it for 20 years, and would have done for another 20 years, without your help.
hey man, great to have you. every time you post a video, there are lot to learn.... thanx man
"ISN'T THAT INTERERSTING?!" "YES!"
I'd prefer to listen to him teach math rather than my University professors
Wow never thought of that.. Keep up the amazing work ♥️♥️♥️
This man is love . ❤ So humble, the way he speaks . Always a pleasure to watch his videos . ❤
2:14 -> 2:17 that reaction about " Divide " hahahaha 🤣🤣🤣🤣🤣
3:20
Unmesh: have a look at this area...( pointing around the highlight )
Me: hmm... (staring inside the V)
That was awesome! Thanks for the tip!
Best photoshop teacher ever! Give this guy a bunch of love!