Fig. 3From: Which data subset should be augmented for deep learning? a simulation study using urothelial cell carcinoma histopathology imagesAn example of image augmentation by rotation and flipping. An example of eight-fold augmentation by rotation and flipping; A Original urothelial cell carcinoma image; B–D Rotation of the original image by 90°, 180°, and 270° to produce three more images; E–H Flipping of the previous four images to produce four more imagesBack to article page