Objects are bounded by a physical surface. Where this surface curves away from our line of sight, we see an edge to the object (called an OCCLUDING CONTOUR). Most objects have surfaces that are distinctive from their surrounds, either by being of a...

The goal of edge detection is to mark the points in a digital image at which the luminous intensity changes sharply. Sharp changes in image properties usually reflect important events and changes in properties of the world. These include (i)...