Color

Page
8

Contents

• Today
• What is color?
• Color and light
• Color and light
• Image credit: nasa.gov
• Measuring spectra
• The Physics of Light
• Spectral power distributions
• Surface reflectance spectra
• Color mixing
• Additive color mixing
• Examples of additive color systems
• Superposition
• Subtractive color mixing
• Examples of subtractive color systems
• Today: Color
• How to know if people perceive the same color?
• Color matching experiments
• Color matching experiments
• Color matching
• Metamers
• Grassman’s laws
• Computing color matches
• Standard color spaces
• RGB color space
• CIE XYZ color space
• HSV color space
• Distances in color space
• Distances in color space
• Trichromacy
• Environmental effects & adaptation
• Chromatic adaptation
• Contrast effects
• After images
• Color-based image retrieval

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