Term
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Definition
| the quality associated with color name |
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Term
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Definition
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Definition
| extent a color departs from neutral |
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Term
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Definition
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Term
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Definition
120 million
detects black and white in low light |
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Term
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Definition
7 million
Detects color with ample light |
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Term
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Definition
| monochromatic - rods only |
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Term
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Definition
| transitional light that uses both |
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Term
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Definition
| bright light that uses only cones |
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Term
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Definition
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Term
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Definition
| have all three cones but not normal color vision |
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Definition
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Definition
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Definition
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Definition
| http://www.optics4kids.com/teachersparents/articles/images/compositionofcolor01.gif |
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Term
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Definition
factor of 2 at 1/60th becomes 2/60th or 1/30th
factor of 16 on f#
(log16)/0.3 = 4 stops |
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Term
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Definition
| placing small dots of color near each other so the eye cannot "resolve" them |
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Term
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Definition
subtle transitions between adjacent hues
100 hues are max we can see in side by side comparison |
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Term
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Definition
| the degree of darkness in a color |
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Term
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Definition
| departure from neutral color of same value |
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Term
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Definition
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Term
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Definition
Blue - "B" bottom - Blue (BlueGreen)
Negative a* Green |
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Term
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Definition
| Most saturated colors your system can reproduce |
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Term
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Definition
| C*ab of Reproduced/C*ab of Original |
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Term
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Definition
color difference measurement
geometric distance between 2 colors
sqrt((ΔL*)^2 + (Δa*)^2 + (Δb*)^2) |
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Term
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Definition
represented by XYZ
the amount of 3 primary colors to match a sample |
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Term
| What is needed to define a tristimulus value? |
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Definition
Light source
object
observer |
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Term
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Definition
| When two colors look the same under one light source but different under another |
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Term
| Perceptual Rendering Intent |
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Definition
Used for Pictorial images
preserves luminance over hue
Gamut of image is compressed or expanded to fill gamut of destination device |
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Term
| Saturation Rendering Intent |
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Definition
graphics and company logos
Saturation of pixels is preserved at expense of hue and lightness accuracy
Gamut Compression |
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Term
| Absolute Rendering Intent |
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Definition
Used when strict color conversion is required
White point is mapped to destination
Colors map accordingly
gamut clipping |
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Term
| relative rendering intent |
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Definition
White point of the actual media is referenced to white point of reference luminant
good for photographs
colors map accordingly
allows for chromatic adaptation |
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