Breaking the degeneracy in stellar spectral classification from single wide-band images Ezequiel Centofanti, Samuel Farrens, Jean-Luc Starck, Tobías Liaudat, Alex Szapiro and Jennifer Pollack A&A, 694 (2025) A228 Published online: 18 February 2025 DOI: 10.1051/0004-6361/202452224