“…Of these, the gradient‐based method is characterized by its simplicity (e.g., Breaker et al., 2005; Kostianoy et al., 2004). The widely used Canny edge detection method (Canny, 1986; Castelao & Wang, 2014; Castelao et al., 2006; Jones et al., 2012; Wall et al., 2008; Wang et al., 2015; Zhang et al., 2019) and the Belkin & O’Reilly algorithm (BOA, Belkin & O'Reilly, 2009; Dodge et al., 2014; Guo et al., 2017; Lin et al., 2019; Liu & Hou, 2012; Liu et al., 2018; Oh et al., 2020; Sagarminaga & Arrizabalaga, 2014; Wei et al., 2020; Woodson et al., 2012; Zeng et al., 2014) are classified as gradient‐based methods. The histogram method is characterized by its robustness and worldwide validation (e.g., Belkin et al., 2009; Cayula &Cornillon, 1992, 1995, 1996; Kahru et al., 2012, 2018; Svendsen et al., 2020; Tseng et al., 2014; Ullman & Cornillon, 1999, 2000, 2001; Wall et al., 2008).…”