Fig. 4From: Epidermis segmentation in skin histopathological images based on thickness measurement and k-means algorithmTwo examples of epidermis coarse segmentation. a, e Red channel images. b, f Images after removing background pixels. c, g Binary images after global thresholding. d, h Final binary masks. Note that white regions in (d) and (h) correspond to segmented epidermis areasBack to article page