Light, Vision, and the Brain: Foundations of Color
Color arises when different wavelengths of light stimulate the S, M, and L cones in our retinas. Rods help in dim light but barely signal color. Metamers—different spectra that appear identical—prove perception depends on biology and context, not just physics alone.
Light, Vision, and the Brain: Foundations of Color
Our brains process color through opponent pairs—red versus green, blue versus yellow—helping stabilize appearance under shifting illumination. Color constancy lets a ripe banana look yellow at noon or dusk. Share how your favorite object’s color seems steady despite dramatic lighting changes.
