Extraction of rock and alteration geons by FODPSO segmentation and GP regression on the HyMap imagery: A case study of SW Birjand, Eastern Iran

•Extraction of rock and alteration geons by FODPSO segmentation.•Classification of alunite, jarosite, kaolinite, muscovite, and montmorillonite.•Classification of HyMap dataset by GP algorithm.•Applying the segmentation method and GP algorithm are suitable for mineral mapping.