Suggest adding Otsu's threshold algorithm

Is there any decision to add the Otsu thresholding algorithm to the project?
It is [available in opencv](https://docs.opencv.org/3.4/d7/d4d/tutorial_py_thresholding.html) and there are also some independent libraries written for it [like this one](https://github.com/cawfree/otsu), which I think can easily add this powerful algorithm.

Useful links about this:
https://en.wikipedia.org/wiki/Otsu%27s_method
http://www.labbookpages.co.uk/software/imgProc/otsuThreshold.html