Editing

**Color theory — two mixing models.** - **Additive primaries:** **Red, Green, Blue** (RGB). Used by **light-emitting displays** — monitors, projectors, sensors. **R + G + B = White.** - **Subtractive primaries:** **Cyan, Magenta, Yellow** (CMY). Used by **inks and dyes** — printing, color photography. **C + M + Y = Black** (in theory). - **Displaying a digital image** uses additive mixing (RGB). - **Color photography (film prints)** uses subtractive mixing of complementary dyes.

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