Film grain or granularity is the random optical texture of processed photographic film due to the presence of small particles of a metallic silver, or dye clouds, developed from silver halide that have received enough photons. While film grain is a function of such particles (or dye clouds) it is not the same thing as such. It is an optical effect, the magnitude of which (amount of grain) depends on both the film stock and the definition at which it is observed. It can be objectionably noticeable in an over-enlarged photographic film photograph.
Read more about Film Grain: RMS Granularity, Selwyn Granularity, Grain Effect With Film and Digital, Film Grain Overlay
Famous quotes containing the words film and/or grain:
“All film directors, whether famous or obscure, regard themselves as misunderstood or underrated. Because of that, they all lie. They’re obliged to overstate their own importance.”
—François Truffaut (1932–1984)
“Whan that the firste cok hath crowe, anoon
Up rist this joly lovere Absolon,
And him arrayeth gay at point devis.
But first he cheweth grain and licoris,
To smellen sweete, er he hadde kembd his heer.”
—Geoffrey Chaucer (1340?–1400)