“…Image processing technology has been widely applied in the diagnosis, identification, and monitoring of plant diseases ( Sankaran et al, 2010 ; Barbedo, 2016 ; Vishnoi et al, 2021 ), such as wheat diseases ( Li et al, 2012 ; Johannes et al, 2017 ; Deng et al, 2021 ), maize diseases ( DeChant et al, 2017 ; Chen et al, 2021 ), rice diseases ( Phadikar et al, 2013 ; Lu et al, 2017 ; Narmadha et al, 2022 ), cotton diseases ( Camargo and Smith, 2009 ; Caldeira et al, 2021 ), soybean diseases ( Pires et al, 2016 ; Shrivastava et al, 2017 ; Araujo and Peixoto, 2019 ), cucumber diseases ( Vakilian and Massah, 2013 ; Zhang S. W. et al, 2017 ; Kainat et al, 2021 ), tomato diseases ( Yamamoto et al, 2017 ; Trivedi et al, 2021 ), grape diseases ( Tian et al, 2007 ; Oberti et al, 2014 ; Zhu et al, 2020 ), and citrus diseases ( Pydipati et al, 2006 ; Sankaran et al, 2013 ). Moreover, image processing technology has been used to make disease severity assessments ( Li et al, 2011 ; Barbedo, 2014 ; Vieira et al, 2014 ; Shrivastava et al, 2015 ; Ganthaler et al, 2018 ), conduct pathogen identification ( Chesmore et al, 2003 ; Deng et al, 2012 ; Wang et al, 2021 ), and perform automatic counting of pathogen spores ( Li X. L. et al, 2013 ; Li et al, 2017 ).…”