Edge detection is a fundamental tool in image processing, machine vision and computer vision, particularly in the areas of feature detection and feature extraction, which aim at identifying points in a digital image at which the image brightness changes sharply or, more formally, has discontinuities. The same problem of finding discontinuities in 1D signals is known as step detection.
Read more about Edge Detection: Motivations, Edge Properties, A Simple Edge Model, Why Edge Detection Is A Non-trivial Task, Approaches
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—George Gordon Noel Byron (1788–1824)
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