Light, perception, and reflection
•Light field, plenoptic function
•Light as EMR spectrum
•Perception
–color constancy, color contrast
–adaptation
–the retina:  rods, cones (S, M, L), fovea
–what is color
»response function, filters the spectrum
»metamers
•Finding camera response function (basic idea, not details)
•Materials and reflection
–what happens when light hits a surface
–BRDF
–diffuse (Lambertian) reflection
–specular reflection
–Phong reflection model
–measuring the BRDF (basic idea)