Chroma Key
クロマキー / 1930s– / Technique / Film Technology
Keying one color transparent and layering the image onto another — from optical blue-screen work through the BBC's CSO to today's green screens and virtual studios, the foundation of compositing.
A single-color backdrop / Keyed edges / A separated foreground / Lighting designed for the composite
Dictionary entry
- Best used for
- Comparing primary sources and canonical works · Extracting principles that transfer to other media
- Type
- Observe the letters, signs and scale of reference works
- Composition
- Extract the one structure that governs gaze and information
- Material
- Verify the materials and behaviors specific to era, region and process
- Caution
- Don't reduce it to surface signs. Verify the context of era, region, technology and makers.
- Further study
- Larry Butler's optical blue screen / BBC CSO dramas / the replacement by LED volumes