NATS 1870 Lecture Notes - Lecture 12: Opponent Process, Opsin, Photon
28 Sep 2016
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% r vs hue or wavelength on axis. Does not have a wave length not present with light through prism. Examples: magenta, purples: magenta has a double peak at blue and red, purple has a higher blue, and a lower red, generally, they have double peaks in the reflectance cure (make sure you label axis properly) White: yellow activates r & g cones, blue activated b cones all cone activated (fully and equally) so white is perceived: give an example of an additive mixing process which does not use light: Finely woven textiles, small dots of colour (ink, paint) on a page. When mixing paints the commonly reflected wavelength dominate the mixed colour. Different processes: subtractive processes absorb light (via selective absorption), so when paints are combined, more light is absorbed, the mixture moves to black. Additive processes add light sources (or small dots of colour) directly activation cones in your eye.
