Image Segmentation - SJTU

Digital Image Processing, 2nd ed.

Chapter 10

Image Segmentation

? Image Segmentation:

¨C Definition

¨C Importance

? 2002 R. C. Gonzalez & R. E. Woods



Digital Image Processing, 2nd ed.

Chapter 10

Image Segmentation

? Detection of Discontinuities:

R = ¡Æ wi zi

9

i =1

? 2002 R. C. Gonzalez & R. E. Woods



Digital Image Processing, 2nd ed.

Chapter 10

Image Segmentation

?

Point Detection:

1. A Mask R ¡Ý T

2. Thresholding

? 2002 R. C. Gonzalez & R. E. Woods



Digital Image Processing, 2nd ed.

Chapter 10

Image Segmentation

? Line Detection:

¨C A Suitable Mask in desired direction

¨C Thresholding

Line i : Ri ¡Ý R j , ?j

? 2002 R. C. Gonzalez & R. E. Woods



Digital Image Processing, 2nd ed.

Chapter 10

Image Segmentation



? Example:

-45? Mask

? 2002 R. C. Gonzalez & R. E. Woods

Thresholding

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