Fig. 4

Diagnosis by YOLOv4. a Recognition of tubular basophilia (arrow) in WSI (Scale bar = 200 µm, original magnification × 200). YOLOv4 accurately diagnosed renal WSI, to which the brightness control function, which is an inherent function of WSI, was applied. The location of tubular basophilia was detected using the bounding box, the output of YOLOv4. b Recognition of mineralization (arrow) in WSI (Scale bar = 200 µm, original magnification × 200). The location of mineralization was detected using the bounding box, the output of YOLOv4. c Simultaneous recognition of tubular basophilia (arrows) and mineralization (arrowheads) in WSI (Scale bar = 200 µm, original magnification × 100). Tubular basophilia and mineralization were simultaneously detected using the bounding box, the output of YOLOv4