Optical Illusions or Graphic Art?

this picture is a drawing, people have mad some good contributions on you post, very good post. I gave you a + for you topic.

I have many such photos with me. But my lot does not allow me to upload all of them at once. Anyway I am uploading one of the most seen Illusion. Just check it. Tell me if you like it or not.

Here is one:

Woaaah Cool

Those things drive me crazy!

great

I've got a neat one. Focus on the four middle dots for 30-40 seconds. Then, look at a nearby wall and blink. You will see something, or rather, someone

WOW.... all the graphics are really cool. I've seen some of them before. Unfortunately I dont have any more to add. But thanks for sharing them with us.

You really are Good..

I saw that pic,it's a trippy pic. what about this one?i think it's arty and cool.I'm buying the poster...

i am fond of optical illusion....just enjoy this example with the picture... What to do: The colour wheel on the right initially spins quite slowly. The top right buttons select various speeds, the buttons below allow fine adjustments. Can you achieve a seemingly stationary gray disk? What to observe: For slow speeds, below about 3 rps (rps= rotations/s) there is fairly smooth movement. For higher speeds we see jumbled segments, backward motion etc. At some high speeds the motion disappears entirely, leaving only a bit of flicker. Comment: Motion demonstrations, especially when fast motion is involved, suffer from stroboscopic artefacts. A grander designation would be “temporal aliasing”. So I decided to make a teaching point out of a nuisance (when trying to demonstrate colour mixture)… The disk does not rotate smoothly (even if it might look so) but rather is presented in rapidly succeeding still frames, each with a different rotation angle. This produces the percept of smooth motion (within certain limits), the “Phi Phenomenon” of Wertheimer. The current demo is set up with a frame rate of 120 Hz and, initially, an angle increment ? of 5°. Were the angle increment 365°, it would not appear to rotate very fast, but rather slowly backwards with ?= 360°–365°= –5° (try it). Physically these two alternatives are identical, and our perceptual system chooses the ‘closer’ alternative. This explains the “wagon wheel effect”, which appears for wheels with clearly defined spokes at certain speeds. However, another aspect comes into play: the frame rate of your display. Many LCDs have a refresh rate of 60 Hz, monitors come in rates from 60 to 200 Hz. So what exactly you see, depends on the interaction of the two frame rates and the angle increment, and the intermediate effects may not be pretty.

Graphic Art

it is Optical Illusion. also excellent pictures here thx for sharing

#1

0o these were my faviroutes

this is a fabulous chalk pic of men in a well..

graphics

graphic art, maybe it's from photoshop effect. Brcause i am graphig designer too.

Nice topic

Graphic Art