The Canny edge detector is an edge detection operator that uses a multi-stage algorithm to detect a wide range of edges in images. It was developed by John F. Canny in 1986. Canny also produced a computational theory of edge detection explaining why the technique works.
Read more about Canny Edge Detector: Development of The Canny Algorithm, Parameters, Conclusion
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“And hiving wisdom with each studious year,
In meditation dwelt, with learning wrought,
And shaped his weapon with an edge severe,
Sapping a solemn creed with solemn sneer.”
—George Gordon Noel Byron (1788–1824)