color, form, and distance. color the color of an object is determined by the wavelengths of light...
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COLOR, FORM, AND DISTANCE
COLOR
The color of an object is determined by the wavelengths of light that object absorbs and reflects.
When you paint an object, you are applying a pigment that selectively absorbs and reflects different wavelengths.
COLOR
Color is an illusion. Your brain tells you that things have color. All color wavelengths are absorbed except those wavelengths that produce that color.
Ex. If you see a wall painted red, all wavelengths are being absorbed, except the red wavelength.
COLOR SPECTRUM
The color spectrum is easily remembered with the acronym ROY-G-BIV from the longest to shortest waves (red-orange-yellow-green-blue-indigo-violet)
Red-Orange-Yellow-Green-Blue-Indigo-Violet(longest shortest)
WAVELENGTHS
There can be a broader wavelength than red, but we can’t see it
Ex. Radio waves. There can be a thinner wavelength
than violet. But we can’t see that either
Ex. Microwave or ultraviolet waves
TWO THEORIES OF COLOR VISION
Trichromatic Theory: The human eye has three types of cones (red, green and blue) and thus all color perception must be due to mixing of these three colors. Uses red, green and blue in staggered forms.
This is how a TV works (red, green, blue projectors).
TRICHROMATIC TV SCREEN
COLOR VISION
Trichromats- People with normal color vision who can discern all the colors of the visible spectrum- red, green, and blue-violet- as well as colors formed by various combinations of these hues.
Monochromats- People who only see in black and white About 1 in every 40,000 people
Dichromats- People who lack one of the 3 types of cones, making it difficult to distinguish between certain types of colors. People who are colorblind (red-green most common in
men 8%; 1% in women)
TWO THEORIES OF COLOR VISION
Opponent-Process Theory: Colors are paired and are antagonists (red vs. green, blue vs. yellow, white vs. black). If a cone is responding to a red
wavelength, it cannot respond to a green one at the same time.
OPPONENT-PROCESS
OPPONENT-PROCESS
LILAC CHASER
http://en.wikipedia.org/wiki/Lilac_chaser
COLOR PERSONALITY TEST
http://www.eyetricks.com/illusions.htm
http://www.viewzone.com/luscher2.html