Discrete Fourier Transform (DFT) and Discrete Cosine Transform (DCT)

A Fundamental course in digital image processing for senior-level and graduate-level students.
This lecture is about DFT and DCT
Outline:
Derive DCT from DFT
Properties of DCT
Basis Functions of DCT
Examples
Rate-Distortion Curves for DCT versus DWT and DFT
Objectives:
Review DFT
Learn ways to compute DFT of an image
Understand Circular Convolution
Derivation of DCT from DFT
Understand DCT and its basis functions
Affiliation:
OLIVES at the Georgia Institute of Technology.
[Group website]: ghassanalregib...
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