6. Image Segmentation and Edge Detection

  1. Maria Petrou and
  2. Costas Petrou

Published Online: 27 JAN 2011

DOI: 10.1002/9781119994398.ch6

Image Processing: The Fundamentals, Second Edition

Image Processing: The Fundamentals, Second Edition

How to Cite

Petrou, M. and Petrou, C. (2010) Image Segmentation and Edge Detection, in Image Processing: The Fundamentals, Second Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9781119994398.ch6

Publication History

  1. Published Online: 27 JAN 2011
  2. Published Print: 9 APR 2010

ISBN Information

Print ISBN: 9780470745861

Online ISBN: 9781119994398

SEARCH

Keywords:

  • edge detection;
  • image processing techniques;
  • image segmentation;
  • monogenic signal;
  • phase congruency

Summary

This chapter talks about the image processing techniques that are used to prepare an image as an input to an automatic vision system. These techniques perform image segmentation and edge detection, and their purpose is to extract information from an image in such a way that the output image contains much less information than the original one, but the little information it contains is much more relevant to the other modules of an automatic vision system than the discarded information. Phase congruency is the situation when all harmonics of the Fourier series expansion of a periodic signal have the same phase. Application of the Riesz transform to a 2D signal produces the monogenic signal, which corresponds to the analytic signal in 1D.

Controlled Vocabulary Terms

edge detection; image processing; image segmentation