Etymograph

English

thresholding

From threshold + -ing.

A compound of threshold + -ing

Middle English threschwolde ‘a door-sill’

English threshold

Today it means

noun 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.

Sources

Sources: Wiktionary, “thresholding”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / thresholding

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