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