# Sobel operator

> English word · Noun

## Definitions
1. A discrete differentiation operator that computes an approximation of the gradient of the image intensity function, used in image processing and computer vision, particular for detecting edges.

## Etymology
Based on the work of Irwin Sobel.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sobel-operator