Exactly Which otsu extension is working at back end of multithresh.m in matlab2013a.

What research paper should I read to understand otsu and otsu extension.

Answer 1

[Spandan Tiwari]

The algorithms are from the paper:

Otsu, N., "A Threshold Selection Method from Gray-Level Histograms," IEEE Transactions on Systems, Man, and Cybernetics, Vol. 9, No. 1, 1979, pp. 62-66.

[Humera Tariq]

But multithresh must be an extension of above(I guess). I want to know the reference of that extension if exist. I know about this parent paper.

[Spandan Tiwari]

Well, the paper itself talks about Otsu's method for multiple thresholds, which is what multithresh uses.