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41 Cards in this Set
- Front
- Back
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Hue refers to...
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color name.
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Saturation is..
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The amount that a color departs from neutral.
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Lightness refers to..
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brightness.
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Rods see _______ and cones see _____
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Rods see in light/ black and white and cones see in color.
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How many cones are in the retina?
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7 million.
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How many rods are in the retina?
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120 million.
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How many ganglion cells are in the retina?
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1 million.
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There are only _________ in the fovea?
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There are only CONES in the fovea.
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What is the fovea?
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Where the image comes in focus/ sharpest.
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Spectral Sensitivity for a SHORT cone...
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S- Blue & 440nm
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Spectral Sensitivity for a MEDIUM cone...
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M- Green & 544nm.
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Spectral Sensitivity for a LARGE cone...
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L- Red & 580 nm
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What is the human response range to light?
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10 trillion: 1
Log luminance difference of 3 stops. |
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When you are dark adapted and only your rods are activated you have...
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Scotopic Vision.
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When you are light adapted and only your cones are activated you have...
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Photopic Vision.
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Transitional vision that utilizes both rods and cones is known as...
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Mesophic Vision.
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Purkinje Shift
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The purkinje shift occurs when eyes are transitioning from photopic to scotopic vision and sensitivity shifts towards BLUE.
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Trichromatic Theory
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3 different channels, RED GREEN BLUE, transmits their color through the optic nerve.
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Opponent Process Theory
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3 channels in PAIR- RED GREEN, BLUE YELLOW, BLACK WHITE.
Used more often because of color blindness. |
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What are the psychological or perceptual primaries?
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RED, GREEN, BLUE, YELLOW, BLACK AND WHITE.
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What does psychological or perceptual primaries mean?
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Colors our eyes see as pure.
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To see a color you must have three things....
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Light source, sample/color, detector.
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Who is known as the father of additive color?
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James clerk maxwell.
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Additive color involves...
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Additive color involves light. An example- laptops and iphones.
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Subtractive color involves...
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Subractive color involves inks and dyes. An example- clothes and print.
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A Apple absorbs _____ & _____ light and reflects _____ light.
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A apple absorbs green and blue light and reflects red light.
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In an additive system, combining red and blue lights will produce...
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Magenta.
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In a subtractive system, combining yellow and cyan inks/dyes will produce...
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Green
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In a subtractive system, the secondary colors are...
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RED, GREEN, BLUE.
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In a subtractive system, the primary colors are...
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CYAN, MAGENTA, YELLOW
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A printing (painting) process that places tiny dots of ink so close together that they give the illusion of forming one color is known as...
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Spacial Parative Mixing.
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Who is the founder of the spacial parative mixing?
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Seurrat.
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The general rule is that a filter will ______ its own colors and those adjacent to it on the Maxwell triangle and _______ its compliment color and those adjacent on the Maxwell triangle.
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The general rule is that a filter will ___Lighten___ its own colors and those adjacent to it on the Maxwell triangle and Darken its compliment color and those adjacent on the Maxwell triangle.
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A color filter _______ its own color and _______ all other colors.
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A color filter transmits its own color and absorbs all other colors.
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A green filter lightens what and darkens what?
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Green filter lightens GREEN, YELLOW, CYAN and darkens RED, MAGENTA, BLUE.
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A yellow filter lightens what and darkens what?
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A yellow filter lightens YELLOW, RED, GREEN and darkens BLUE, MAGENTA, CYAN.
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What is the equation to find number of stops filter factor alters aperture?
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log(filter factor) / .3
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If you pass white light through a red filter, what color light is transmitted?
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Red.
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If you pass magenta light through a red filter, what color light is transmitted?
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Red.
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If you pass cyan light through a red filter, what color light is transmitted?
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None.
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What does K stand for in color?
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Black.
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