noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The process of creating a black-and-white image out of a grayscale image by setting exactly those pixels to white whose value is above a given threshold, and setting the other pixels to black. uncountable

Etymology

From threshold + -ing.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.