2012 chapter 01

數位影像處理

Digital Image Processing

922 U3010

授課教師：洪一平

辦公室： Room 433/220

Email: [email protected]

上課時間提早到每週二下午1：00 ─ 4：00

Books

• Textbook

– R.C. Gonzalez and R.E. Woods, Digital Image Processing, 3rd edition, Prentice Hall, 2010.

• Gonzalez and Wintz, 1977/1987, Gonzalez and Woods, 1992/2002.

• www.prenhall.com/gonzalezwoods

• References

– R.C. Gonzalez, R.E. Woods, Steven L. Eddins, Digital Image Processing Using MATLAB, Prentice Hall, 2003.

– A. K. Jain, Fundamentals of Digital Image Processing,Prentice Hall, 1988.

– W. K. Pratt, Digital Image Processing, 4th edition, Wiley-Interscience, 2007.

Course Requirement

• Homework assignments: 20%

• First exam: 20%

• Second exam: 25%

• Term project: 30%

• In-Class Performance : 5%

Webpage of this course

http://ceiba.ntu.edu.tw/1002DIP

Outline of the Course

I. Introduction

II. Digital Image Fundamentals

III. Intensity Transformations and Spatial Filtering

IV. Filtering in the Frequency Domain

V. Image Restoration and Reconstruction

VI. Color Image Processing

VII. Wavelets and Multiresolution Processing

VIII. Image Compression

IX. Morphological Image Processing

X. Image Segmentation

XI. Representation and Description

XII. Object Recognition

Yi-Ping Hung - NTU CSIE 922 U3010

Chapter 1. Introduction

• Introduction

– Motivation

– Applications

– Overview


Chapter 1: Introduction

• Why IP (or Digital IP)?

• Processing of image data for human

interpretation;

• Processing of image data for

autonomous machine perception.

• Processing of image data for storage,

and transmission.


Definition of a digital image I(m,n)- described in a 2D discrete space

In this class,

value = f(x,y) or I(m,n)



• Imaging machines cover almost

the entire EM spectrum



天鵝座環狀星雲

Positron

Emission

Tomography

正子電腦斷層造影術

醫學、天文

核子反應爐閥之放射線影像



血管造影術

天鵝座環狀星雲?



天鵝座環狀星雲

螢光顯微技術─ 染病玉米

螢光顯微技術

─ 正常玉米

?



膽固醇

抗癌藥物

Audio CD

?



人工眼球水晶體



微波雷達影像



醫學、天文

Magnetic Resonance Imaging （磁振造影術）



蟹狀星雲脈衝星


Seismic Imaging 震測影像

• Other Imaging Modalities (other than EM)


Chapter 1: Introduction超音波影像 Ultrasound Imaging

甲狀腺

肌肉損傷


Chapter 1: Introduction掃描式電子顯微鏡Scanning Electronic Microscope (SEM)

燒斷之鎢絲燈燈絲


Chapter 1: IntroductionComputer Generated Images



e.g., ROI,

defect models

Display


Three Major Categories of IP Operations

• Image Enhancement and

Restoration

• Measurement Extraction

• Image Compression


Image Enhancement and Restoration

Application of the median filter



Adjusting the image histogram to improve image contrast


Application of the 2-dimensional Fast Fourier Transform




remove the foreground

objects by applying a 25

by 25 greyscale dilation

operation


Thresholding an image or

applying a Watershed Separation Filter



Components of an IP System

2012 chapter 01

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