A tutorial on applications of power watershed optimization to image processing Sravan Danda, Aditya Challa, B. S. Daya Sagar and Laurent Najman Eur. Phys. J. Spec. Top., 230 10 (2021) 2337-2361 Published online: 02 September 2021 DOI: 10.1140/epjs/s11734-021-00264-0