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Image Segmentation Algorithms

Image Segmentation Algorithms. Otsu (1979) Fisher (1936) Kittler and Illingworth (1986) Vincent and Soille (1991) Besag, Chen, Dubes (1986, 1991). Image Lenna and Its Histogram. Illustration of Bayes vs. ML (2). Application to Image Segmentation. ICM Segmentation Algorithm.

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Image Segmentation Algorithms

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  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)

  4. Application to Image Segmentation

  5. 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, 325-337, 1990.

  6. Gonzalez vs. Otsu Segmentation

  7. Image Segmentation: ICM vs. Otsu

  8. Image Segmentation: ICM vs. Otsu

  9. Image Segmentation: ICM vs. Otsu

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

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