Feature Extraction and Image Processing

Contents

Preface ix

1 Introduction 1

1.1 Overview 1

1.2 Human and computer vision 1

1.3 The human vision system 3

1.3.1 The eye 4

1.3.2 The neural system 7

1.3.3 Processing 8

1.4 Computer vision systems 10

1.4.1 Cameras 10

1.4.2 Computer interfaces 13

1.4.3 Processing an image 14

1.5 Mathematical systems 15

1.5.1 Mathematical tools 15

1.5.2 Hello Mathcad, hello images! 16

1.5.3 Hello Matlab! 21

1.6 Associated literature 24

1.6.1 Journals and magazines 24

1.6.2 Textbooks 25

1.6.3 The web 27

1.7 References 28

2 Images, sampling and frequency domain processing 31

2.1 Overview 31

2.2 Image formation 31

2.3 The Fourier transform 35

2.4 The sampling criterion 40

2.5 The discrete ...