Centre de Morphologie Mathematique CMM - Mines Paris - PSL
Smil - library web site (and documentation)
Scikit Image - library web site (and documentation)
Smil Quick Reference - a quick reference/overview of Smil functions.
The OpenMP API specification for parallel programming
Repository of benchmarking scripts at github
Wikipedia - Computational complexity
J. Serra. Image Analysis and Mathematical Morphology - Volume 1. Academic Press, 1982.
P. Soille. Morphological Image Analysis: Principles and Applications. Springer-Verlag, Berlin, Heidelberg, 2 edition, 2003.
K. Wu, E. Otoo and A. Shoshani, “Optimizing connected component labeling algorithms”, 2005, Lawrence Berkeley National Laboratory (University of California)