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  1. 1. Color Theory and Color Management English 414 Lee Honeycutt
  2. 2. Eye’s Reception of Color
  3. 3. Rods and Color Cones
  4. 4. Additive Color
  5. 5. Subtractive Color
  6. 6. Lighting Conditions <ul><li>Incandescent - makes red and oranges seem warm </li></ul><ul><li>Standard Fluorescent - renders inaccurate colors, with hues of green or yellow (indoor video) </li></ul><ul><li>Sunlight Fluorescent - uses 5,000 K bulbs to simulate sunlight </li></ul><ul><li>Metameric swatch - determines color accuracy of light </li></ul>
  7. 7. Color Terms <ul><li>Color Model - CIE L*a*b, sRGB, Adobe RGB, etc. </li></ul><ul><li>Gamuts and Palettes - range of colors. RGB has a broader gamut than CMYK. </li></ul><ul><li>Hue - different colors within a gamut </li></ul><ul><li>Chroma or saturation - intensity within a hue. </li></ul><ul><li>Value - tone of grays within a hue </li></ul>
  8. 8. Color Management <ul><li>A workflow process that seeks to maintain accurate color settings across all steps of digital design and production. </li></ul>
  9. 9. Device Calibration <ul><li>Input Devices </li></ul><ul><ul><li>Scanners </li></ul></ul><ul><ul><li>Digital cameras </li></ul></ul><ul><li>Monitors </li></ul><ul><ul><li>CRTs </li></ul></ul><ul><ul><li>LCDs </li></ul></ul><ul><li>Output Devices </li></ul><ul><ul><li>Inkjet printers </li></ul></ul><ul><ul><li>Laser printers </li></ul></ul><ul><ul><li>Plotters </li></ul></ul>
  10. 10. ICC Profiles <ul><li>Profiles help standardize calibration information across a variety of devices </li></ul><ul><li>Calibration is somewhat automatic for scanners and cameras at home; professional quality needs tweaking. </li></ul><ul><li>Monitors need calibration, usually done through OS. </li></ul><ul><li>Printer calibration automatic through profiles; check with press for ICC profile. </li></ul>
  11. 11. Scanners and Cameras <ul><li>Scanners - TWAIN Plug-ins for Photoshop usually calibrate scanner color profile. </li></ul><ul><li>Cameras - sometimes provided by manufacturer, but you may need to download: </li></ul><ul><li>Popular Photography Site </li></ul>
  12. 12. Monitor Calibration <ul><li>Mac OS X </li></ul><ul><li> > System Preferences > Displays </li></ul><ul><li>Windows XP </li></ul>
  13. 13. Monitor Calibration
  14. 14. Try Your Hand at It <ul><li>Mac OS X </li></ul><ul><li> > System Preferences > Displays </li></ul><ul><li>Windows XP </li></ul>
  15. 15. Professional Monitors
  16. 16. Sony Artisan System <ul><li>21-inch Trinitron CRT precisely tuned for color creative applications </li></ul><ul><li>Integrated display, hood, color sensor and software specifically engineered for seamless color calibration and profiling </li></ul><ul><li>Easy one-touch calibration and profiling setting accurate fixed color spaces is automatic, because software and sensor communicate directly with the display </li></ul><ul><li>Sets and maintains black for consistent color contrast ratio. </li></ul>
  17. 17. Software Color Settings <ul><li>Mac OS X - ColorSync utility application </li></ul><ul><li>Windows XP - Image Color Management </li></ul><ul><li>Software Packages: </li></ul><ul><ul><li>Photoshop </li></ul></ul><ul><ul><li>InDesign </li></ul></ul>