quadtone

Definitions

1. An interval of four whole tones.
2. A picture printed in four shades.

Examples

“In Photoshop’s Duotone mode you can create⟳ monotones, duotones, tritones, and quadtones—grayscale images to which you add⟳ one, two, three, or four colors.”

“When using tritones or quadtones (in which three colours are blended together) all the secondary colours are mixed together.”

“The two colours need⟳ not be black and grey; computer duotones can be created from a greyscale original in any two colours; tritones use⟳ three inks and quadtones four.”

CEFR level