Luc Vincent. Local Grayscale Granulometries Based on Opening Trees. In Petros Maragos, Ronald W. Schafer, Muhammad Akmal Butt, editors, Proceedings of the 3th International Symposium on Mathematical Morphology and its Applications to Image and Signal Processing, ISMM 1996, Atlanta, GA, USA, May 1996. Volume 5 of Computational Imaging and Vision, pages 273-280, Kluwer, 1996. [doi]