Optillusions (Optical Illusions)

Which line is the largest?

Due to the structure of your eyes rods and cones (retina rods and cornea/Coriolis cones) and this pattern appears to be slowly rotating at the speed of the earth’s rotation. try looking at this one in south “of the border” America!

This hazardous pit is designed to resemble an ultra-realistic 3D chalk painting.

Though one of these lines appears to be longer than the other, they are in fact the same length.

Let us consider two patterns made of parallel and equidistant lines, e.g., vertical lines. The step of the first pattern is p, the step of the second is p+δp, with 0<δ<1.

Can your eyeballs resist the sky blue “Moiré Effect”?

Though not strictly an optical illusion, the Isihara Color Blindness test illustrates the variability of human perception. The numeral “82” here is clearly visible to viewers with normal color vision.

Known as “The Devil’s Tuning Fork”, this figure’s two cylindrical prongs mysteriously transform into two bars at the opposite end.

Stare at the dot for 5 minutes. Can you see the shark?

Do you see a face or TWO faces?

Look at the center point and concentrate for say 1 minute and look at wall then you are able to see your lover’s face. Time for concentrating at center point may vary from person to person depending on weight. This illusion will harm your eyes. So view it at your own risk.

Your mind subconsciously interprets this line drawing of an impossible cube as a three-dimensional object, even though it is not actually possible for such an object to exist.

Although it may be impossible to believe, the squares marked A and B are actually exactly the same shade of grey.

The classic inverted-face illusion.