Edges are significant local changes of intensity in a digital image. An edge can be defined as a set of connected pixels that forms a boundary between two disjoint regions. There are three types of ...

EXP 4-a - Gradient Operator = The gradient operator in image processing is used to detect edges by highlighting areas where the intensity of an image changes rapidly. The operator computes the rate of ...

Abstract: In this paper, we first extend the Wirtinger derivative which is defined for complex functions to hyperbolic functions, and derive the hyperbolic gradient operator yielding the steepest ...