Visual enhancement of chest X-ray scans through metaheuristic-based optimization of Gamma correction and CLAHE. - Oscar Ramos-Soto; Jorge Ramos-Frutos; Erick Rodríguez-Esparza; Diego Oliva; Ezequiel Perez-Zarate; Francisco Carrasco-Hernández; Sandra E. Balderas-Mata (Biomed. Signal Process. Control., 2026)