Lecture 4 color model
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Transcript of Lecture 4 color model
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COLOR MODEL
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TWO TYPES OF COLOR MODELSubtractiveAdditive
•Light•Transmitted light
•Inks•Reflected light
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COLOR MODEL
RGB MODEL
CMYK MODEL
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RGB MODEL• ADDITIVE COLOR MODEL• FOR COMPUTER DISPLAYS• USE LIGHT TO DISPLAY
COLOR• RESULT FROM
TRANSMITTED LIGHT• RED+GREEN+BLUE=WHITE
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CMYK MODEL• SUBTRACTIVE COLOR
MODEL• FOR PRINTED MATERIALS• USE INK TO DISPLAY COLOR• REFLICTED LIGHT• CYAN+MAGENTA+YELLOW=
BLACK
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RGB MODEL CMYK MODEL
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COLOR GAMUT AND COLOR SPACE
COLOR GAMUT IS THE RANGE OF COLOR CAN BE DISPLAYED OR PRINTED
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Computers use 24-bit RGB color model that has 256 variation for EACH additive color
RGB MODEL
256 RED 256 GREEN 256 BLUE
VARIATIONS
X X
16,777,216 POSSIBLE COLORS
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CMYK printing is also known as “four-color process” or simply “process” colorAchieved by overlapping tints
CMYK MODEL
Tints is a screen of tiny dots appearing asa percentage of solid color
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CMYK MODEL
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WHEN IN DOUBT, SAVE IMAGE AS RGB
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SCANNING
SHOOTING