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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“They will tell me I talk about things I have never experienced but only dreamed—to which I might reply: it is a lovely thing to dream such dreams! And besides, our dreams are much more our experiences than we believe—we must relearn about dreams! If I have dreamed thousands of times about flying—would you not believe that when I am awake I also possess feelings and needs giving me an edge on most people—and...”
—Friedrich Nietzsche (1844–1900)