Incredible Shade Illusion!
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- čas přidán 10. 08. 2011
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Song name: Soul Switch
Girl in the video: / dxdutch
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I put together a template of a smaller version of this design for you to download and try yourself. Give it a try, it really is amazing to see it happen right before your eyes.
Here's the link to the template: i.imgur.com/Bf8xi.jpg
brusspup t-shirts!
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For me, this is still one of the most amazing illusions. The design is just so simple and yet the illusion is so amazing.
This illusion has been around for a long time but always in the form of an image. It was created by MIT professor Edward H. Adelson. I wanted to take it from a flat piece of paper and turn it into a real, life sized illusion that I could interact with to demonstrate the effect.
The illusion works because of the "shadow" that falls on the checkerboard. Lets think of the square that the shadow falls on. Now picture that the shadow doesnt exist, you would see a light colored square surrounded by the dark colored squares. But when the shadow falls on top of that light colored square, the shadow causes the shade to become darker but it also causes the surrounding darker squares to become darker. So within the shadow region the brightness and darkness of the squares are still relative to one another. But they are no longer relative to the squares that lie outside of the shadow.
So if you were able to pick up the middle square and move it to one of the outside dark squares, they would be 2 different shades, But the trick is ..that when you move the square you are moving it WITH the shadow still printed on the square. So now you've moved it out of its relative area, outside of the shadow region (but with the shadow still printed on the square) ..to the area where it's the same shade as the "dark" square. - Věda a technologie
That was so mind blowing I think I need a nap
How long was that nap
I really wished she had removed the entire cylinder at the end to see the tiles in the shadow
Xxx
Right. It would show, she was cheating.
Remove the entire cylinder， gray B in the shadow will come out White. Under Different light， different color marked dark A，light B have same shade of gray. Due to light influence，different color will have identical Color Scale. Gray is a color scale in the middle between dark A and white .
Or place the moving square into the corner over the white.
The cylinder shadow is painted onto the tiles, which is how the grays match. The light is too diffuse from the left to cast that much shadow, and you can see even light on the floor tiles on the right, telling you the platform is also lit from above. If she moved the cylinder it wouldn’t change much.
Really cool to see a "real life" version of this! It would be interesting to see how it would look if you removed the cylinder instead of moving the square.
i belive that this is not real cilinder shadow. because on the odher side is 1 light source too. so these squares are colored like there are shadow
@@ropkazip1236 Yes It is
Me: 'Its all an illusion, i'm better than this, i won't fall for it, I REFUSE YOUR WITCHCRAFT!'
Video: 'this clearly white tile is the same shade of this clearly black tile'
Me: 'no, No,No, nnnnNNOO.'
Video: *moves square to prove it*
Me: WHAAATA!
same man...same
I was literally saying ‘no’ to myself lmao
Ok I need a video of this where they move the cylinder.
You actually don't need to move the cylinder to prove that those two boxes are the same color. Just stop the video right before or after she has moved one of the boxes, and cover the cylinder with your hands on the computer screen. Just place one hand over the cylinder on your computer screen, and another hand on the opposite side on your computer screen. The 2 box should be centered right between your two hands, and you'll notice they are actually still the same color.
I see that they are the same color but I need to see what is even there. What our eyes are hiding.
Disclaimer: I'm not saying this video is fake. In fact, I think it is interesting.
Like kaliomi said, I myself would like to know what is actually there.
It would make sense if the tile she moves out of the shadow was white. Then what would it look like if she didn't put the tile back to the original position, but on the darker tile within the shadow (and reverse outside of the cylinder's shade)? Would there be 3 of the same color tiles in a row? Or would it blend in with the darker tile and make no difference to our perspective view (within the cylinder's shade)? What if the light which casts the shadow of the cylinder is turned off? Then what would happen if the other light is turned off? And then what would happen if the cylinder is removed?
vi tiet thiet
Pause it when the camera shows the whole grid and focus on the fact that those 2 tiles are the same color. Your brain will start making sense of everything and you will be able to see the differences in color of each tile.
To see a picture of old that will be easier to do this to, what I did is google image searched 'same color tile.' It's the same thing only easier to look at.
@@margaretv.cabreros4841 i don’t see that at all. I see the square changing color as it enters or leaves the shadow. I am not buying this video, I believe it may be a photoshop job
Y U NO REMOVE CYLINDER AT THE END OF THE VIDEO?!?!?
Her arms do not get darker
I used to think this was a video trick too, so I did a screenshot and cut out the two square areas in a paint program and, sure enough, they are, in fact, the same shade! Try it!
@@JustWasted3HoursHere thanks for the advice. I tried the same and it worked.
@@vatsdimri3675 Yeah, I had to do this for my mom because she thought I was pulling her leg (which I have done many a time in my life, to be fair!)
@@vatsdimri3675 You can also just block out the rest of the screen except for those two squares and it will show that they are the same.
The dress is white and gold, lol.
The dress is black and blue!
Stephen Browne wow you're comment is really off topic
But we're talking about the shade of the checkered floor not the dress..
Future G4mer which I understand and appreciate. That being said, I commented this when "the dress" was at its height in popularity. the novel part now is people who remember it and get the loose correlation between the two.
To be fair, this illusion is the leading hypothesis for why people saw different colours. B/B people see a B/B dress in bright light, whereas W/G people (like me) see a W/G dress with a shadow cast over it and a bright scene behind it.
For those who still aren't convinced.
0:39.
Print Screen, paste into Paint.
Make 2 overlapping circles anywhere else.
Use the dropper on one square, drop into one circle and the overlapping spot.
Use the dropper on the other square, drop into the other circle and then carefully compare while dropping it into the overlapping spot.
Once you drop the second color into the overlapping spot, CTRL Z back and forth to see the slight changes, they're practically the same shade.
mf i aint doing that💀
I've seen a picture of this illusion, so I'm actually more impressed that you made a physical model than the illusion itself. Props.
Who came from Vsauce's playlist?
yup
I did
Me too.
me to
Wtf
This has long been one of my favorite illusions.
What I think makes it even more remarkable is that when the movable square is in the shade, you would expect it to look darker. And you would expect it to look lighter in the light. Wouldn't you?
Yet the opposite is true.
You know this is just an optical illusion
But you can't just stop thinking that this is magic
+Jessie Li it IS magic
Oh ho ho It's magic you know.
Never believe it's not so.
Another well thought through video! Thanks.
first reply after 6 years mmm
@@just_lucid lol
0:58 ... If you look at the bottom of the big round column that is causing the shadow on the board, you will see the shadow on the extreme corner on each side. You'll see a tiny strip of shadow crossing first the dark, then the tip of the corner of the light square. This is a good place to see just how much of difference this shadow makes on the two extremes of this shade. Very cool.... And only missed seeing it new by 11 yrs.....😳
Does the illusion only work when viewing this on video?
If that square from the shaded area is the same as that dark square outside the shadow, then what about the adjacent squares that are even darker in the shadow?
Also, if you remove that canister and take away the shadow, what happens?
So, what would happen if the shadow (or cylinder) is removed instead of removing the piece and placing for comparison? This does not logically make since to me. And the removable piece just looks like it's changing colors because of the source of light hitting it (color changing mechanism), instead of it actually being the same color.
They're actually the same color
They’re the same color
It's just a false shadow. The cylinder is not casting as much of a shadow as it appears meaning that if you were to remove the cylinder, there would still be a dark area where the shadow is supposed to be.
Bravo! That's the exact answer. Anyway, the job for this video was great!
I have a 20/20 eye and a borderline blind eye. The perfect eye is fooled, but the bad eye can see through the illusion
wrong !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
FLAT EARTH you gonna explain or shout wrong with no explanation,if so then username checks out.
@@kaiden7063 YOU ARE WRONG !!!!!!!!!!!!!!
@@easydp DO I? YOU DIRTY BASTARD !!
FLAT EARTH you are acting exactly how flat earthers do. You just say “no” and run away with no proof.
Wonderful production! Many Thanks
I've seen and read about this illusion before, so I knew what to expect, yet still my mind was blown. This video shows the illusion, for lack of a better phrase, much more sharply. Mind blowing. How can anyone not like this video?
because it's desceptive. The light source is not real. The 'illusion' is something out of a college psychology textbook. It's not very interesting, so they punched it up with a pretty face some trippy music and a lot of video editing. I am not impressed.
BOOM!!! oh sorry that was my mind being blown
I thought that was my dog farting
that makes sense except its getting DARKER, when it's out of the shadow =/
Probably the best of all optical illusions.
I just noticed something VERY interesting about the music! It is the same music used in COD black ops (1 and 2) zombies! Notice how changing a few things makes the song sound so creepy on COD, but so nice, cheerful and uplifting here.
Still unacceptable to my brain, despite seeing it several times.
Due to Light Influence，different color will have identical Color scale. Under Different light， different color marked dark A，light B have same shade of gray， A and B are identical brightness.
It blows my mind.
Your Videos and Background Music are nothing less than AWESOME!
Amazing! Well done!!!
I have a problem here. In the version we are used to see it is a picture, in which the white tile in the shadow is as dark as the black one in the light. Here, the white tile is pulled out of the shadow and still looks like the black one although it's in the light ! It looks like the goal of the experiment is slightly different isn't it ?
i was thinking this
Looks as if they reallt we're different shades right? because when the paper was transitioning from shadow to light, you can see it go light or dark, meaning the shadow plays a large role in deceiving us. Which lede to thinking that the color behind the shadow in the picture of the illusion is unrealistic lol
Andrei Catapang, no. There is no shadow - the entire platform is brightly lit by the light on the top right. The "shadow" is created by tinting the platform itself, and the spotlight on the left is just a red herring which casts no shadow. What you're seeing is literally that illusion in action.
+tronvillain how can you explain 1:04 when the paper clearly changes color from light to dark
Andrei Catapang is right, there's definitely a shadow being cast. But I think tronvillain is on to something; there seems to be a bit of cheating going on using different shades.
And of course the crucial thing is that we're getting a different level of light reflected depending on where the square is placed - but in the 2D printed version it's the same level of reflected light (that's why it's an illusion).
blue and black
Agreed.
Ry P WHITE AND GOLD
Ethan Risden It's ok. No one is right or wrong ^^
Cyril B The people who say white and gold are wrong, it's proven to be black and blue but the color you see has to do with what way your brain works
MorrisBowws If you just look at the pixels, you realize it is not a deep blue and not black. I can see it deep blue and black if the background is changed, but it's an illusion :)
I think I understand why this happens.
We were hunters, so our brain structure was under evolutionary pressure to be able to distinguish between objects, to better focus the prey.
So when there is some contrast in a shady environment, the brains increases the contrast.
You see that at 1:00 when they move the square, it "changes" because our brain increases the contrast.
This is probably something that happens to cats as well, a pity we cannot ask them.
This is truly incredible!
You should have shown what the chessboard-ish thing looks like when the object making the shadow is removed.
holy sheet, that grey sheet of paper is becoming a white sheet before my eyes!
That's superb.
this is very cool. love your videos!!
What kind of sorcery is this?
This illusion continues to mess with my head every time I see it even though I know the conclusion. My brain just refuses to accept the demonstrable reality of those two squares being identical.
If you pause it at the right time, the two blocks that get compared are actually different colours from the blocks around them. The whole stand is a lie, our brain is used to patterns like a chess board, but this board is not the same colouring as a chess board, just remove the cylinder that blocks light and you shall see the true colours of this stand (which differ from one point to another).
Shelleg3s Isn't that the point?
I still fall for this every single time!
Thanks for the awesome video and explanation too
what happens if you remove the cylinder
It will only be 2 colours..
@@Cameron-rc5ef hahaha
This is how I think it is done. The square being moved was actually originally a bright green or blue square. Its color was digitally adjusted to precisely match the shade of the other squares as needed. As it is being moved the color is smoothly animated to change from one shade to the other.
EXCELLENT!!! Thank U for sharing :)))
HOW AWESOME IS THAT! (I LOVE illusions
The shadow is painted.
my mind, has officially, been fucked.
Great video!!! Thank u for sharing :)))
Dude this is sick
im here because of the blue and black dress
Though cool to watch, the makers of this video totally misinterpreted the illusion they're trying to demonstrate. The actual setup should be a regular checkerboard pattern, with the square in shadow a white square, and the one outside the shadow area, dark. The the lighting should be such that the white square in shadow is of same intensity as the dark one (as measured by a light meter).
The purpose of the original illusion is to show that the brain 'overcompensates', and still makes the white square in shadow look much brighter than the dark one, making the checker pattern still look like a checker pattern despite the shadow. Which is actually an evolutionary advantage, for example to be able to recognise objects on a sun-dappled forest floor.
Hah! I think you missed the point Tom. The point is, how on earth did the white square become a grey one?
evolution is still progressing
this can be used to discuss about Unconscious Bias. i love it!
WHAT?! BUT BUT W..WHY?! H..HOW?!
Sentinelbeats the shadow
Finaly i know the trick! (My names Rachid lakhdar)
the shadow is painted. Her arms don't get darker as she moves them into the "shadow" and you can see the lamp which is "deleting" the shadow.
No, it really is our brains being weird
skuldug1 yes our brain is being weird because it thinks that it is a shadow. it thinks that it is a white and not a grey because it thinks that it is a white in a shadow and not a normal gray in normal light. Our brain is being weird because the shadow is painted.
***** ooooh right thanks for explaining
skuldug1
no problem ;)
***** It's not painted. This is a common optical illusion. Our brains alters the color of the tile to what it believes it should be. The light and shadow are all real, it's just our brains altering the perceived image.
the paper might be of same shade but the texture on the paper is what making this illusion quite interesting.
I LOVE THE MUSIC!!! WHERE YOU FIND IT?TELL ME MORE...
If the dark tile that is positioned above and to the right of the tile she is moving is a different shade from the tile she is moving, then what colour is that tile? It can't be the same colour as the one she is moving but it also can't be the same colour as the one she moves the tile to, yet it looks exactly the same colour as the one she moves the tile to. Something is not quite right here. I think I might have been conned.
If the dark grey tiles in the shade are darker than the dark grey tiles in the illuminated areas, then how come you can see part of the dark grey tiles that are not quite fully in the shade? Perhaps they painted a fake shadow onto a couple of the tiles, running diagonally across them?
Simon Matthews Ah I can see what they have done now. If you look closely you can see the painted on shadow of the cylinder and also the real shadow of the cylinder slightly out wider than the painted on shadow!
Hit PrtScn n paste the screen shot in paint. Then play around with the image by covering or erasing different parts of the check board. Its pretty revealing.
Good idea! But I think I worked out what is happening if you read my other comments :-)
Simon Matthews
It's because the darker tile above and to the right of the tile she is moving, is darker due to the shadow, as is the one she is moving, so it will automatically be a darker shade than the darker tiles outside the shadowed area.
i need to re-think my life and all my beliefs now, THANKS!
***** Fly... Fly. away my prince.
What is mind blowing about this is not just the visual surprise, but rather the realization that our brains alter reality based on a pre-conceived notion of what we expect.
The ramifications of this is that we should not just accept things as we perceive them, as we may be reaching a false conclusion.
Incredible!
I could actually see that they were the same without her moving the square.
Is my brain special? .3.
Yes.
EdWard D Oh.
To put it simply.
Same!! It's especially noticeable from a specific angle.
Then again, I already know my brain is special, I literally don't have a frontal lobe..
wannabebrittishgirls Oh...
I don't _think_ I have something wrong with my brain...
...it would explain a lot, actually.
You probably don't. There's literally like a 1% chance you do. You're probably just awesome keep on being you
For anyone who thinks this is a video editing trick, do this: Do a screenshot of this, and then import it into a paint program. Cut out a piece from either square and move it to the other square. They really are the same shade!
I get mindblown by every single video he makes.
I've seen past EVERY optical illusion but this one always gets me
What sort of gypsy magic is going on here?
Shades and shadows
I'm baffled by this video of the illusion. Typically it is the shadow cast onto a lighter square that makes it the same colour as the darkened square, so how can she move the square and it not be effected by the shadow cast from the light source? Me thinks the light behind the cylinder is fake, and the shading on the surface of the chess board is actually printed onto the tiles, thus this is no optical illusion like its original, but a different one that is less amazing.
That is EXACTLY what I was thinking! I had to come back to this video because I just never understood how it is possible that the "light" tile B is the same shade as the "darker" tile A when in the shadow it is lighter than the "darker" tiles surrounding it. B is only the same shade as A because of the shadow cast. Without the shadow, they wouldn't be the same shade. So this had to be staged lol
+Lilly BunnyButtPie The trick is that it's not actually a "regular" checkerboard. The two squares are the same color, but the combination of the checkerboard pattern and the idea of a "shadow" make your brain automatically judge the squares based on the squares around them.
One square looks darker because the squares around it are light
One square looks lighter because the squares around it are dark
The color never actually changes, if you zoom in on the video and follow the square and ONLY the square, without surroundings, you'll notice that it doesn't seem to "fade"
+Pseudo Lain I think you've missed the point... we both fully understand the illusion, but what most people aren't noticing is that in THIS version of the illusion the shadow is not a shadow but printed onto the paper, therefore the illusion is kinda half real half not. As Lilly said it is a staged version of the real illusion - there are many videos of people doing the real illusion utilizing the light source to cast the shadow.
Adam Robertshaw
Sounds weird... why fake it lol
+Pseudo Lain Exactly, right? But watch the video again, and see how the shadows "work"... they are printed onto the paper rather than being cast from the light source. Very odd.
Love the music
It turns darker half way! It does!
OMFG!
David Karres I know! Mind fuck!!!
-- THE MIND - 1
Consider my mind blown!!! Very cool and kinda messed up...lol
I am totally mindfucked. I even *took a screenshot* of the video and have just *proven this video is in fact 1000‰ REAL.*
it is, but the shadow is not real, its painted ;)
This blows my mind every time i see it.
One thing I've always wondered about this. If the grey sq appears white in the low lighting, why do the actual grey sqs still remain/look grey? Is it just because of relation of proximity?
This video is staged.
1) Quote from the last paragraph of the description: "But the trick is ..that when you move the square you are moving it WITH the shadow still PRINTED on the square." The key words here are shadow and printed.
2) As many people pointed out in the comment section, if the 2 tiles are isolated from the background, the colour is the same but it should NOT. As the shadow covers the moving tile, the colour "perceived" by our eyes/the camera should be darker.
3) Let's consider the checkerboard without the shadow. The tile that diagonally opposite the original position of the moving tile (in half-shadow) has the same colour than the original one. Then logically also has the same colour than the final position one. This setup is not possible.
As a conclusion, the lighting is "fake" (at least not explicitly explained as staged) and the shadow is printed.
Anyways, the description is not explicit enough about the staged nature of the installation. Purposely I guess, since half of the video presents the lighting, the shadow and the checkerboard (and the girl).
The video misleads people in the understanding of the "Checker shadow illusion" of Adelson.
In my opinion, this is intentionnal disinformation. And i hate it.
Alexandre C. Everyone seemed to be wowed and awed by it, though. Let's just call it entertainment rather than fact
+MrG0TH1ER
It may seem obvious to you, good for you, but if you take a look at the comments, it is not the case for everyone. Personnaly, i got confused on the first viewing.
+UltimateZ
I agree with you that it doesn't really matter if it's fake or not. What I disliked is not the fact that it is fake, but that the video is shot in a way that mislead people. That said, it is a personnal opinion and you are free to disagree.
I wanted to prove that this is "fake" because many people were debating on this matter. Exposing some easily understandable arguments could possibly put an end to this debate.
+Alexandre C. Yes, there is no real shadow on the board because of second lamp which is not explicitly explained. And it took me a while to see it.
(Actually I had a "fight" about this cose it's not possible, if the shodow is not printed)
Edit: Actually, you can see shadoouw on the moving square. The combination of light sources is good (As a video itself)
+Alexandre C. You must be a hoot at parties.
What the actual hell?
This is pretty damn cool!
My mind is blown💥
its the lighting and ths shadow that makes in look different
Any sauce on the music?
Really nice, any lyrics?
May I try and add some?
Thanks any way!
I have noticed this phenomenon in real life whenever you walk in a dimly lit hallway. Any skin color looks very vague in a specific lighting
I have a copy of the illusion on paper. It is neat to see a video of it. Thanks.
Is it just that particular tile which is of same shade? Or the entire set of tiles?
Oh my god, this is so cool but so freaky! :O
Trolltastic. Well played.
That was emotional 😢
This was great
you always seem to make my head hurt trying to comprehend this stuff
Amazing
It's pretty simple if you know optics and properties of the mind and the effects shadows have with colours.
When a dark object is placed is covered by a shadow of an object, our eyes see that it has lighter color, while a dark object placed on the light it show darker color. Optical Illusion bro!
You have to think about this stuff a lot as an artist/illustrator ... especially when you do landscape or environments: lighting/shadows, atmosphere and distance ("atmospheric perspective") ALL change the value and color of objects.
Many people just getting into (realistic) painting have to break their expectations and perceptions of what we call "local color", and this is exactly the same idea exercised into an optical illusion (and just as well, hence: "The Dress").
For those in doubt - just Google up a JPG version of the illusion, and try comparing the squares in Photoshop via the Eyedrop tool.
So what explains the white squares that are in the area that's lit? Are they a different shade?
Watching this high, Wow.
what does the checkered board look like without the shadow? its been years since Ive seen this and I still cannot visualize it in my head.
This is, in a sense, 2 illusions in one. The shadow which creates the primary illusion is actually printed on the checkerboard. Notice the real shadows (or lack thereof) on the girl's hands and on the floor around the base. There are light sources on both sides which would eliminate the fake shadow. The illusion still works with real shadows, but a fake one is necessary so that the tile can be physically moved from the "shadow" into the light without changing its shade.
amazing
I would have thought this was cool like everybody else, if I hadn't seen it done a million times.
The only way this would work is if you didn’t have an actual cast shadow, so what is with the lighting setup? Is that just to trick people based on the surrounding environment? Or you are using Ae.
It can change with your focus that's crazy
When it gets out of the shadow it lights up and the color from the square under it goes through!
This is madness !
Madness? THIS IS JUST AN ILLUSION !
Had to take a screenshot, go to Photoshop, duplicate part of the darkest-looking one and move it onto the lightest-looking one to admit they were actually the same overall shades for good (pipette only works on specific areas there)... Really amazing to know it is true and still not being able to actually SEE the same shade... :-)
It reminds me when I used to paint, I isolated parts of the model with a stencil, so that my perception of some colour would not be distorted by the surrounding colours :-)