Fig. 2From: Computer-aided recognition of myopic tilted optic disc using deep learning algorithms in fundus photographyOverview of data preprocessing for the AR-preserving dataset. a, data cleansing; b, cropping the black border area and determining the aspect ratio distribution of the actual fundus area; c, cropping or zero-padding while keeping the height intact; d, resizing each image to a resolution of 524 X 436Back to article page