Содержание
- 2. Chapter 9: Color Copyright © 2004 by Prentice Hall The Physics of Color Light with a
- 3. Chapter 9: Color Copyright © 2004 by Prentice Hall The electromagnetic spectrum, of which visible light
- 4. Chapter 9: Color Copyright © 2004 by Prentice Hall The spectrum of visible light
- 5. Chapter 9: Color Copyright © 2004 by Prentice Hall Human Response to Color (Weakness in seeing
- 6. Chapter 9: Color Copyright © 2004 by Prentice Hall 9.3 Color Models An artist’s color wheel:
- 7. Chapter 9: Color Copyright © 2004 by Prentice Hall The artist’s model: red, yellow, and blue
- 8. Chapter 9: Color Copyright © 2004 by Prentice Hall An artist’s color wheel
- 9. Chapter 9: Color Copyright © 2004 by Prentice Hall The secondary colors
- 10. Chapter 9: Color Copyright © 2004 by Prentice Hall The tertiary colors
- 11. Chapter 9: Color Copyright © 2004 by Prentice Hall In additive color (RGB) Red + Green
- 12. Chapter 9: Color Copyright © 2004 by Prentice Hall Additive color: things that emit light, especially
- 13. Chapter 9: Color Copyright © 2004 by Prentice Hall In subtractive color . . . Cyan
- 14. Chapter 9: Color Copyright © 2004 by Prentice Hall Subtractive color: things that reflect (and selectively
- 15. Chapter 9: Color Copyright © 2004 by Prentice Hall HSB: Hue, Saturation, and Brightness Hue: where
- 16. Chapter 9: Color Copyright © 2004 by Prentice Hall The color cone: hue, saturation, and brightness
- 17. Chapter 9: Color Copyright © 2004 by Prentice Hall HSB: Hue, Saturation, and Brightness
- 18. Chapter 9: Color Copyright © 2004 by Prentice Hall Varying saturation, with brightness held constant
- 19. Chapter 9: Color Copyright © 2004 by Prentice Hall Varying brightness, with saturation held constant
- 20. Chapter 9: Color Copyright © 2004 by Prentice Hall 9.4 Four Color-Harmony Schemes Monochromatic: colors of
- 21. Chapter 9: Color Copyright © 2004 by Prentice Hall Analogous Colors
- 22. Chapter 9: Color Copyright © 2004 by Prentice Hall Complementary Colors
- 23. Chapter 9: Color Copyright © 2004 by Prentice Hall Triadic Colors
- 24. Chapter 9: Color Copyright © 2004 by Prentice Hall Monochromatic color harmony: colors of same hue,
- 25. Chapter 9: Color Copyright © 2004 by Prentice Hall Monochromatic example: orange, with variation in brightness
- 26. Chapter 9: Color Copyright © 2004 by Prentice Hall Complementary: red and green
- 27. Chapter 9: Color Copyright © 2004 by Prentice Hall Complementary: various blues, with red-orange highlights
- 28. Chapter 9: Color Copyright © 2004 by Prentice Hall Analogous: bright orange, darker yellow-orange, light yellow
- 29. Chapter 9: Color Copyright © 2004 by Prentice Hall Analogous: red-orange through yellow-green
- 30. Chapter 9: Color Copyright © 2004 by Prentice Hall Triadic: red, yellow, blue
- 31. Chapter 9: Color Copyright © 2004 by Prentice Hall Triadic: red, yellow, blue
- 32. Chapter 9: Color Copyright © 2004 by Prentice Hall The color software at the companion Web
- 33. Chapter 9: Color Copyright © 2004 by Prentice Hall Here is pure red; what would we
- 34. Chapter 9: Color Copyright © 2004 by Prentice Hall Answer: add green and blue Copyright ©
- 35. Chapter 9: Color Copyright © 2004 by Prentice Hall Lower all three, to get “dusty red,”
- 36. Chapter 9: Color Copyright © 2004 by Prentice Hall This is a cool gray: less red
- 37. Chapter 9: Color Copyright © 2004 by Prentice Hall This is a warm gray: less blue
- 38. Chapter 9: Color Copyright © 2004 by Prentice Hall Is gray ever saturated? Let’s try: this
- 39. Chapter 9: Color Copyright © 2004 by Prentice Hall Another gray (same amount of R, G,
- 40. Chapter 9: Color Copyright © 2004 by Prentice Hall A lighter gray Copyright © 2004 by
- 41. Chapter 9: Color Copyright © 2004 by Prentice Hall Gray getting toward white; still zero saturation
- 42. Chapter 9: Color Copyright © 2004 by Prentice Hall Black is completely unsaturated, right? Right. Copyright
- 43. Chapter 9: Color Copyright © 2004 by Prentice Hall Change the amount of blue from zero
- 44. Chapter 9: Color Copyright © 2004 by Prentice Hall Now B = 40; can you distinguish
- 45. Chapter 9: Color Copyright © 2004 by Prentice Hall Now B = 100, and we have
- 46. Chapter 9: Color Copyright © 2004 by Prentice Hall Pure blue; fully saturated by any definition
- 47. Chapter 9: Color Copyright © 2004 by Prentice Hall A little more on color harmony In
- 48. Chapter 9: Color Copyright © 2004 by Prentice Hall The colors, laid out linearly instead of
- 49. 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4
- 50. 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4
- 51. Chapter 9: Color Copyright © 2004 by Prentice Hall The four color-harmony schemes Monochromatic: colors from
- 52. Chapter 9: Color Copyright © 2004 by Prentice Hall Three columns for picking monochromatic schemes; these
- 53. Chapter 9: Color Copyright © 2004 by Prentice Hall Monochromatic: Column 8, rows 2, 7, 12
- 54. Chapter 9: Color Copyright © 2004 by Prentice Hall Monochromatic: Column 1, rows 1, 4, 10
- 55. Chapter 9: Color Copyright © 2004 by Prentice Hall Three pairs of complementary colors (complements don’t
- 56. Chapter 9: Color Copyright © 2004 by Prentice Hall But they can scream, if you wish
- 57. Chapter 9: Color Copyright © 2004 by Prentice Hall A triadic can shout . . .
- 58. Chapter 9: Color Copyright © 2004 by Prentice Hall . . . or whisper . .
- 59. Chapter 9: Color Copyright © 2004 by Prentice Hall . . . or speak conversationally .
- 60. Chapter 9: Color Copyright © 2004 by Prentice Hall . . . or let others talk
- 61. Chapter 9: Color Copyright © 2004 by Prentice Hall End interlude End of Interlude And that
- 62. Chapter 9: Color Copyright © 2004 by Prentice Hall Text and background colors for legibility Use
- 63. Chapter 9: Color Copyright © 2004 by Prentice Hall Text and background colors for legibility Avoid
- 64. Chapter 9: Color Copyright © 2004 by Prentice Hall Text in a dark color on its
- 65. Chapter 9: Color Copyright © 2004 by Prentice Hall A great many combinations are possible In
- 66. Chapter 9: Color Copyright © 2004 by Prentice Hall Even a little color in the background
- 67. Chapter 9: Color Copyright © 2004 by Prentice Hall Now, for comparison, here is what black
- 68. Chapter 9: Color Copyright © 2004 by Prentice Hall But do provide adequate contrast Offer expires
- 69. Chapter 9: Color Copyright © 2004 by Prentice Hall Always remember how we perceive blue vs.
- 70. Chapter 9: Color Copyright © 2004 by Prentice Hall Don’t use red on blue or vice-versa
- 71. Chapter 9: Color Copyright © 2004 by Prentice Hall Never use bright red on bright green
- 72. Chapter 9: Color Copyright © 2004 by Prentice Hall But change brightness and/or saturation . .
- 73. Chapter 9: Color Copyright © 2004 by Prentice Hall That’s It For Text/Background You have seen
- 74. Chapter 9: Color Types of Color Blindness Protanopia – L-cone (“red weak”) Deuteranopia – M-cone (“green
- 75. Chapter 9: Color What Color Blindness Looks Like Normal Deuteranopia Tritanopia
- 76. Chapter 9: Color What Color Blindness Looks Like Normal Protanopia Deuteranopia Tritanopia
- 77. Chapter 9: Color Designing for Color Blindness Avoid red-on-green or green-on-red at all costs! Consider using
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