FIGURE 1.

Steps to extract small tiles from whole-slide images at ×40 magnification for training. (A) An example WSI with BRCA-mutation or BRCA-wild. (B) The binary mask (top) was created using color differences in RGB color space, and then element-wise matrix multiplication was done with the manually labeled lesion (bottom) to create a lesion mask without void spaces. (C) Tiles with resolution of 384 × 384 were extracted from the lesion mask. (D) The tiles that were extracted will be used in the training.