Combinatorial Image Analysis 19th International Workshop, IWCIA 2018, Porto, Portugal, November 22-24, 2018, Proceedings - Barneva, Reneta P.; Barneva, Reneta P.; Brimkov, Valentin E.; Brimkov, Valentin E.; Tavares, João Manuel R.S; Tavares, João Manuel R.S (Springer International Publishing : Imprint: Springer, 2018)