AUGUST Challenge : Optical Illusion

Question

Hi folks!

Here is a challenge for the month of August , my suggestion : Optical Illusion.

my idea came from visiting this page:  small basic graphic and animations and more (2)

and the Tryhest program no: VTS576

here is samples of optical illusion that i found on Bing image search just for fun:

Answer 1

Here is an example that i found on wikipedia:

this optical illusion is a great challenge for Small Basic fans !

https://commons.wikimedia.org/wiki/File:2_Optical_Illusion.jpg

Answer 2

Yvan, good challenge!  There are some optical illusions below.

• Optical Illusions - Small Basic
• Challenge of the Month - May 2014

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Nonki Takahashi

Answer 3

This is an optical illusion: ZBB577.

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Nonki Takahashi

Answer 4

Wow !

tomorrow Nonki you will see my optical illusion, i'v got my idea :)

Answer 5

Color saturation and lightness illusion.

the yellow circle in the lower left appears brighter and more saturated in a magenta environment, but in reality the 2 circles have the same color.

program no: DBM674

you have to run the program to see the difference :

the image below, probably due to compression, does not clearly demonstrate this illusion of color.

Answer 6

Here is an another one: DBT933.

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Nonki Takahashi

Answer 7

That's a perfect illusion ! great !

Answer 8

I found two more illusions in Small Basic blog comments.

BCH342 by Antonio

DMN087 by Antonio

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Nonki Takahashi

Answer 9

Some more ideas Optical Illusions & Visual Phenomena

 from an interactive site. (If you think, you're eyes are the problem - the eye clinic is on the base/home site upwards)

Answer 10

@papa

Fantastic website, great ressources ! thanks !!!