1. Image Segmentation Algorithms
Otsu (1979)
Fisher (1936)
Kittler and Illingworth (1986)
Vincent and Soille (1991)
Besag, Chen, Dubes (1986, 1991)

2. Image Lenna and Its Histogram

3. Illustration of Bayes vs. ML (2)

7. Application to Image Segmentation

8. ICM Segmentation Algorithm
1. Given an image Y, initialize a labeling X
2. For t=1:mxn
X(t)←g0 if
Pr(X(t)=g0|XN(t),Y) > Pr(X(t)=g|XN(t),Y) for g,g0
3. Repeat step 2 until “convergence” (6 runs)
4. X is the required labeling
Chaur-Chin Chen and Richard C. Dubes
Environmental Studies and ICM Segmentation Algorithm,
Journal of Information Science and Engineering,
Vol. 6, , 1990.

9. Gonzalez vs. Otsu Segmentation

10. Image Segmentation: ICM vs. Otsu

11. Image Segmentation: ICM vs. Otsu

12. Image Segmentation: ICM vs. Otsu

13. Matlab Code for Segmentation
Gonzalez (2002)
graythresh(f) (M-file)
Otsu