Performance Evaluation of Face Detection Algorithms for an Emotion Recognition Application in a School in the Department of Nariño - Colombia. - Andrés Alejandro Diaz Toro; Álvaro Cervelión-Bastidas; Sixto Enrique Campaña Bastidas; Abel Méndez-Porras; Jorge Alfaro-Velásco; Efrén Jiménez-Delgado; Luis-Alexander Calvo-Valverde (UCAmI (2), 2023)