Is Laplacian of Gaussian for blob detection or for edge detection?
hkchengrex’s answer is fairly complete, but I don’t completely agree. Maybe I’m a bit of a stickler for correct nomenclature. A detector is something that yields a strong response at the location of the thing to be detected. The Laplacian of Gaussian (LoG) is not an edge detector, since it has zero crossings at (near*) … Read more