Color is the perception by the eye of one or more frequencies (or wavelengths) of light. This perception comes from the ability of human eye to distinguish a few (usually three) different filters of the same image analysis. Color perception is influenced by biology (some people are born seeing different colors, others do not perceive at all, see daltonism), changes in the same observer, or the colors in the vicinity of the charged (this is the explanation of many optical illusions). Color, perceptual concept, not to be confused with the wavelength, the physical concept. The human eye is unable to distinguish between yellow monochromatic (single wavelength) and a composition of green and red. This optical illusion allows the display of yellow color on the monitor. Sometimes the science of the color is called chromatics. It includes the perception of the color by the human eye and brain, the origin of color in materials color theory in art and the physics of electromagnetic radiation in the visible range (to what we simply refer as light). The light produced by a light source is generally a mixture of electromagnetic radiation of different wavelengths, equivalent to a superposition of monochromatic radiation.
A complete characterization of light can only be removed by expressing the power of each wavelength (or, equivalently, on each frequency). This characterization is given by a function of spectral power distribution (English Spectral Power Distribution - SPD). The perception of the color by the eye - in fact, the brain - is complicated by the fact that visual analyzer compares the color of light reflected from an object with colors of light in the environment. Thus, a white sheet (which reflects all colors equally spectrum) is white and is illuminated with yellow light (from an incandescent bulb), and is illuminated with white light (the sun), although the spectral distribution reflected light power in the two cases is different. This happens because the brain compensates for "eye color of light received from the sheet of paper, "calibrating it's self " where ambient light color, the same color seen under different conditions is perceived differently due to the same compensation process. A color additive synthesis is to obtain a specific color light by combining light sources of different colors set, called primary colors. Additive synthesis is achieved, for example, cathode ray tubes in televisions and computer monitors, and TFT monitors and projectors. In additive synthesis, the intensity of each individual source can be varied so that its power spectral distribution is multiplied by a factor and power spectral distribution of light is the amount resulting power spectral distribution functions of individual sources. Additive synthesis is therefore a linear process, for example, the resulting color by additive synthesis of red, green and blue in a cathode ray tube is characterized by XYZ. God finally this article was a brain killer, this is all the information I could gather up, plus this thing's about light are really hard to understand, o yeah one more thing if you don't understand a thing go and find a dictionary and translate it. And in case you were wondering That tabel show's you the colors of the visible light spectrum. And one last thing I didn't want to put link's to this article, if you want to find more information just click on the word "
COLOR". | color | wavelength interval | frequency interval |
|---|
red
| ~ 700–635 nm | ~ 430–480 THz |
orange
| ~ 635–590 nm | ~ 480–510 THz |
yellow
| ~ 590–560 nm | ~ 510–540 THz |
green
| ~ 560–490 nm | ~ 540–610 THz |
| blue | ~ 490–450 nm | ~ 610–670 THz |
violet
| ~ 450–400 nm | ~ 670–750 THz |
