Final 10  ×  10 cyclic SOM. Each one of the 100 representative images represents a cluster of similar morphologies present in the training dataset. Topology across the representative images is well conserved: Similar shaped representative images are close to each other in the SOM. We note that the SOM is cyclic, the representative images at the right border are connected to those at the left and the representative images at the bottom are connected to the representative images at the top.