Fig. 1: Structure segmentation visual results: Visual examples of the segmentation results.

The top view (a, b) shows a single TDLU with epithelium borders removed, with (a) and without (b) segmentation overlay. The bottom view gives a broad overview (c, d). The classes are mapped as follows: epithelium (yellow), intralobular stroma (green), extralobular stroma (blue), lumen (purple), adipose tissue (orange), small vessel (pink), border (dark blue).