ABSTRACT
Among all transforms used in signal and image processing, Fourier transform (FT) is probably the most commonly used transform. In this chapter, we first describe the definition as well as the concepts of FT and then discuss some of the properties of FT that are commonly used in signal processing. The emphasis of this chapter is on the conceptual interpretations as well as the applications of one-dimensional (1-D) and two-dimensional (2-D) continuous and discrete FT as opposed to mathematical formulation.
