Definition of posterize in English:

posterize

verb

[WITH OBJECT]
  • Print or display (a photograph or other image) using only a small number of different tones.

    • ‘I repeated the image and posterised it in an attempt to make it look like a Warhol repeat.’
    • ‘The effect built into cheaper cameras include things like sepia and cobalt tone, posterizing, solarizing and so forth.’
    • ‘It appears as if it was shot digitally, with post-production that posterized each frame.’
    • ‘They all simplify form in the way a ‘posterised’ photograph - one in which the middle tones are dropped out - does.’
    • ‘Russell has suffered a fate a zillion times worse than being posterized.’

Pronunciation:

posterize

/ˈpōstəˌrīz/