DIP Lecture 9: Unitary image transforms

ECSE-4540 Intro to Digital Image Processing
Rich Radke, Rensselaer Polytechnic Institute
Lecture 9: Unitary image transforms (3/2/15)

0:00:04 General image transforms
0:00:28 Motivation: change of basis
0:02:26 Unitary transforms
0:05:55 Change of basis as a linear transform
0:09:23 2D FT as matrix multiplication
0:11:35 The spatial basis
0:13:04 The Fourier basis
0:14:53 Matlab example of projections onto spatial vs. Fourier bases
0:21:25 Unitary transforms preserve energy
0:23:13 2D FT: pros and cons
0:29:07 The Discrete Cosine Transform (DCT)
0:34:07 Preview of JPEG
0:36:36 The Discrete Sine Transform
0:38:14 The Hadamard Transform
0:43:14 The Haar Transform
0:46:24 Wavelet transforms

Видео DIP Lecture 9: Unitary image transforms канала Rich Radke