Multiclass Image Classification Using GANs and CNN Based on Holes Drilled in Laminated Chipboard. - Grzegorz Wieczorek; Marcin Chlebus; Janusz Gajda; Katarzyna Chyrowicz; Kamila Kontna; Michal Korycki; Albina Jegorowa; Michal Kruk (Sensors, 2021)