white light = RGB light in equal amounts color is a psycho physical response color is described in 3 ways: hue2. lightness3. saturation the human eye sees from 380 770 nm (NOT 400 700nm) ex./ 380__________550__________770 blue green red theories of how color is seen:1. psycho physical theory: invented by Young Helmhotlz, the eye sees three colors of light red, green, and blue that are reflected from objects.* three types of vision:2. trichromatic: sees all three colors2. dichromatic: sees only two of the three colors2. monochromatic: sees only black and white 2. opponent vision theory: invented by Herning, perceptors in the eye sees three sets of colors 1. red green2. yellow blue }psychological color sets3. black white* color after image = when an image that is one of these colors is looked at, when looked away the opposing color is seen pseudoisochromatic color test = colored images surrounded by grey pebblesH even people with good color sight can have bad color sight in certain conditions* photopic vision = daylight, good illuminance, eye peaks at 550nm* scotopic vision = low illuminance, eye peaks at 505nm scectrophotometer = machine that measures color, gives a curve of spectral reflectance * spectral reflectance = of the amount of each color of light reflected additive primary colors = red, green, blue = subtractive secondary colorsadditive secondary colors = cyan, magenta, yellow = subtractive primary colors* each color is created by the 2 colors next to it on the color wheelH cyan = no red, magenta = no green, yellow = no blue* viewing an object under lights the color opposite on the wheel will neutralize the object the object will appear grey achromatic colors = white, grey, black gamut = all the possible colors available using RGB colorants = pigments and dyes (always subtractive) Munsell system of color* 5 main hues: Red, Yellow, Green, Blue, Purpl...
