optical illusion

dunno if you've seen it before...I think its pretty cool........:)



http://files.automotiveforums.com/uploads/559577image001.jpg



:confused:

I don't believe it. The B block is darker than most of the light grey blocks, but the A block is the shade of the B letter, not the block...

Originally posted by Heep
I don't believe it. The B block is darker than most of the light grey blocks, but the A block is the shade of the B letter, not the block...


well you gotta believe it as it is true...heheh....will post explanation and an easy way to see why it is true :lol2:

Of course having the letter A light and the letter B dark helps in creating the illusion, I still don't think the blocks are the same shade.....

Originally posted by Heep
Of course having the letter A light and the letter B dark helps in creating the illusion, I still don't think the blocks are the same shade.....


thats what I thought when I first saw it as well...but it all becomes clear when you see the explantion on how it is........trust me :D

I don't believe it, but he is telling the truth. Took it into Paint Shop Pro and checked the RGB values. :)

Red Value = 107
Green Value = 107
Blue Value = 107

Great illusion, ragt2.0!

Originally posted by Twist
I don't believe it, but he is telling the truth. Took it into Paint Shop Pro and checked the RGB values. :)

Red Value = 107
Green Value = 107
Blue Value = 107

Great illusion, ragt2.0!

Yeah I just did that too...they are the same, but I still don't see it

Originally posted by Heep


Yeah I just did that too...they are the same, but I still don't see it


if ya still can't see it I can PM you on how to easily see it....;)

I saw this a couple days ago on a different forum. I didn't see it then and I don't see it now. The guys on the other forum posted this other pic saying that this one is easier to see, but I cant see this one either :confused:

http://www.eyetricks.com/0506.gif

I've always liked this one. It's fun to look at :D

http://eyetricks.com/0101.gif

Originally posted by J SPEC SilEighty
I've always liked this one. It's fun to look at :D

http://eyetricks.com/0101.gif


wow....just given me a headache there.......even though I've seen that one before..

www.eyetricks.com has a whole bunch of these. some are actually really good

Originally posted by ci5ic
http://files.automotiveforums.com/uploads/886512OWNED.jpg


I suppose now everyone will see it :D

:rolleyes:.........

now that ci5ic has shown it does work and how you can see it....................for the technically minded this is why it works....

:flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash:
The visual system needs to determine the color of objects in the world. In this case the problem is to determine the gray shade of the checks on the floor. Just measuring the light coming from a surface (the luminance) is not enough: a cast shadow will dim a surface, so that a white surface in shadow may be reflecting less light than a black surface in full light. The visual system uses several tricks to determine where the shadows are and how to compensate for them, in order to determine the shade of gray "paint" that belongs to the surface.

The first trick is based on local contrast. In shadow or not, a check that is lighter than its neighboring checks is probably lighter than average, and vice versa. In the figure, the light check in shadow is surrounded by darker checks. Thus, even though the check is physically dark, it is light when compared to its neighbors. The dark checks outside the shadow, conversely, are surrounded by lighter checks, so they look dark by comparison.

A second trick is based on the fact that shadows often have soft edges, while paint boundaries (like the checks) often have sharp edges. The visual system tends to ignore gradual changes in light level, so that it can determine the color of the surfaces without being misled by shadows. In this figure, the shadow looks like a shadow, both because it is fuzzy and because the shadow casting object is visible.

The "paintness" of the checks is aided by the form of the "X-junctions" formed by 4 abutting checks. This type of junction is usually a signal that all the edges should be interpreted as changes in surface color rather than in terms of shadows or lighting.

As with many so-called illusions, this effect really demonstrates the success rather than the failure of the visual system. The visual system is not very good at being a physical light meter, but that is not its purpose. The important task is to break the image information down into meaningful components, and thereby perceive the nature of the objects in view.:flash: :sun:

:flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash:

Here is A and B side by side. Looks the same to me. (even without going to all the color codes)

http://files.automotiveforums.com/uploads/910271bs.jpg

Originally posted by ragt20

:flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash:
...
:flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash: :flash:

ARGH! MY EYES! IT BURNS!

All I'll say is you guys have wayyyyyy too much time on your hands.

that is crazy... stupid rods and cones in my eyes...

Originally posted by YogsVR4
Here is A and B side by side. Looks the same to me. (even without going to all the color codes)

http://files.automotiveforums.com/uploads/910271bs.jpg

someone who knows what they are doin....thats exactly what i did first time I saw it...non of this colour code thing :D :lol2:

bloody clever though... it's like the amber low-light lenses we wear when playing sports under lights at night. You fool you eyes to make everything brighter - works well at dawn/dusk too esp when the lenses are 100% UV too.

Originally posted by J SPEC SilEighty
I've always liked this one. It's fun to look at :D

http://eyetricks.com/0101.gif

*Download to Disk* *Set as Desktop*

Nice illusion Rags! I was going to say you were full of it at first, but then I basically did what Yogs did and saw it to be true.:D :D :D

This thread is far to much for the PMan to handle at 3:20am !!

Damn stupid eyes tricking me into seeing things wrong!

These are actually really good!

sarujin

Originally posted by boingo82


*Download to Disk* *Set as Desktop* You're brave...:bloated:

I wonder if the flashing one could induce epilepsy? Strobes and flashing lights can induce episodes - I wonder if the illusion of a flashing light via an optical illusion would be enough?

Funnily enough when I'm working on multiple applications on my desktop and doing an ALT-TAB scroll between them during month end I've had quite a few people have to look away from the screen because they get disoriented by the constant changes.

Try this !!!....freaky:eek:
http://files.automotiveforums.com/uploads/395813Y884600.jpg

Originally posted by primera man
Try this !!!....freaky:eek:
http://files.automotiveforums.com/uploads/395813Y884600.jpg

That worked for the first time I've ever tried it. Freeky! :eek:

Heres another one that was posted before but I like it

http://files.automotiveforums.com/uploads/791465Slopeing.jpg

Originally posted by primera man
Try this !!!....freaky:eek:
http://files.automotiveforums.com/uploads/395813Y884600.jpg

That's wierd :eek:

I'm still seeing Jesus on my screen........

Originally posted by snowboarder
You're brave...:bloated:

So far it's keeping the co-workers off my computer. :devil:

There are nine people in the attached picture.

If you find 6, you have ordinary powers of observation.

Find 7? you have above average powers of observation.

Find 8, you are very observant, congratulate yourself!

If you find all 9, you are extremely observant, very intuitive, and creative. You can rival the observant powers of Sherlock Holmes

http://files.automotiveforums.com/uploads/7751359peeps.jpg

I see 7. The big head, the old crockety man, the lady, the baby, the face at the far right that shares the face profile with the little pedestal thing, the face at the far left, and the old man in the far left top corner.

What's with the straight row of like 10 rocks by the lady's feet?

Originally posted by Heep
What's with the straight row of like 10 rocks by the lady's feet?


I think that might be the artists signature...

Lol, I just found a grizzly bear too...

There's two faces next to the pedestal on the wall on the left hand side of the wall. Both are in profile, one directly to the right of the face on the left and the other created by the bird pedestal with the flying bird in the background as the eyes...

Originally posted by boingo82


*Download to Disk* *Set as Desktop*

owwwwwwwwwwwwch!!!!! :bloated:

Heep where is the old man in the far left corner?

The bear actually reminds me of the "Panda" :D:D

Heheh.

http://files.automotiveforums.com/uploads/813913waldo.jpg

Originally posted by ci5ic
Heheh.

http://files.automotiveforums.com/uploads/813913waldo.jpg

Hahaha, I was just playing Where's Waldo on my NES yesterday... :D

One word re Waldo...

Bwahahahahahaha!!!!

BTW did you see the other two faces I pointed out?

Originally posted by replicant_008
BTW did you see the other two faces I pointed out?

Yep :)

Woohoo I found waldo Me so smart!!!:p

down here we know him as Wally

Originally posted by ci5ic
There are nine people in the attached picture.

If you find 6, you have ordinary powers of observation.

Find 7? you have above average powers of observation.

Find 8, you are very observant, congratulate yourself!

If you find all 9, you are extremely observant, very intuitive, and creative. You can rival the observant powers of Sherlock Holmes

http://files.automotiveforums.com/uploads/7751359peeps.jpg


can see all nine of them :D....did cheat though......




cheat being I've posted it here b4 :hehehe: :D

I could only find 8. I was perplexed by the nineth one. I circled the 8 I found.

http://files.automotiveforums.com/uploads/223995Testit.jpg

I found a site that had a solution and it also had problems with the nineth picture. In fact there are a few dozen different answers. http://www.justriddlesandmore.com/pictureans.htm I'm curious as to what the people here who found nine think the last one is at?

Originally posted by YogsVR4
I could only find 8. I was perplexed by the nineth one. I circled the 8 I found.

http://files.automotiveforums.com/uploads/223995Testit.jpg

I found a site that had a solution and it also had problems with the nineth picture. In fact there are a few dozen different answers. http://www.justriddlesandmore.com/pictureans.htm I'm curious as to what the people here who found nine think the last one is at?

If you look at the one on the left, behind the bird. There are actually two faces in that one. It is looking to the right. There is your ninth face.


I did this puzzle a long time ago, truly a nice one to look at.

Originally posted by DVSNCYNIKL


If you look at the one on the left, behind the bird. There are actually two faces in that one. It is looking to the right. There is your ninth face.


I did this puzzle a long time ago, truly a nice one to look at.

I have the two faces circled behind the bird on the left as well as the one on the face to the left of that (all circled in blue). I dont see of fourth face in that area.

Originally posted by YogsVR4


I have the two faces circled behind the bird on the left as well as the one on the face to the left of that (all circled in blue). I dont see of fourth face in that area.

the 4th face is profile.. looking "into the eyes of" the lower face on the right of the pedastal

Originally posted by shadowboy


the 4th face is profile.. looking "into the eyes of" the lower face on the right of the pedastal

Thanks guys :)

Hey! What about the old man with the beard in the top corner, and the Panda? :D