Wednesday, November 30

Hue Optical Illusions *

Arjen Goldschmidt has sent in what appears to be the best (proof-endorsed) color optical illusion I have seen. Below examples showcase embedded lines of seemingly different colors. The reason they look different is because our brain judges the color of an object by comparing it to surrounding colors. So without us even knowing it, in the first example, our brains compare the flowing red stripes to the yellow stripes, forcing us to think they are orange. The blue stripes make the red ones appear much darker -almost purple, even though they are exactly the same color! This is just one of the examples why you cannot trust what you see even with your own eyes.
 
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Green
Hue is one of the main properties of a color, defined technically as “the degree to which a stimulus can be described as similar to or different from stimuli that are described as red, green, blue, and yellow” (those being the unique hues). The other main correlatives of color appearance are colorfulness, Chroma, saturation, lightness, and brightness.
 
Orange
In painting color theory, a hue refers to a pure color—one without tint or shade (added white or black pigment, respectively). A hue is also an element of the color wheel. Hues are first processed in the brain in areas in the extended V4 called globs.
 
* Source: from Mighty Optical Illusions. If you love optical illusions of all kinds this is the place to check out!
 
Here’s an example of the same type of hue optical illusions except without color. It still works the same and fools the eye. Is one gray line lighter or darker? As you can see the principle still works.
 
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Saturday, November 19

Things We Forget To Remember

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Now, what was I just thinking of?
 
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bascuriousasachi
bitmixlittleupa
dontbottleitup
discussideasnot
dontwaitforinsp
dontworryabouth
forget5
forget9
gooverunder
knowhourfriend
let go
When I put this blog up yesterday I forgot to give credit where credit is due! All of these funny posts-came from a website called; Post-it notes left to their fate in public places. Just in case you want to buy some of these TWF posters they have them for sale.
 
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