Multispectral imaging for pathogen identification using a filter wheel and smartphone: A frugal innovation approachDenis Leroux, Florian Alonso, Tanguy Coent, Maeva Garros, Régis Montvernay, Yann Le Bihan and Corine FulchironEPJ Web Conf., 287 (2023) 03017DOI: https://doi.org/10.1051/epjconf/202328703017