Fig. 1
From: Relationship between the Ki67 index and its area based approximation in breast cancer
An example image with ground truth overlaid. a The tumor positive nuclei are marked with red dots while negatives are marked in green. The non-tumor nuclei were left unmarked. b The non-tumor regions are shown in black. These regions were not considered for further analysis. The inclusion of such regions will incorrectly decrease the Ki67 Index because negative nuclei within these regions are abundant