“…In most cases, these include various types of binarization, e.g., multi-criteria binarization with two thresholds [ 10 , 11 , 12 , 13 ], and also supportive processes of morphological image transformations [ 14 , 15 , 16 ], e.g., the processes of opening and closing [ 17 , 18 , 19 ]. A review of microstructural changes that occur during FSW in aluminum alloys and their modeling can be found in [ 20 , 21 , 22 ].…”