Research Article

Selective Hole Filling of Red Blood Cells for Improved Marker-Controlled Watershed Segmentation

Figure 3

The visual outputs of the algorithm steps. The local minimum histogram background segmentation applied to the input image (a), followed by white blood cell segmentation (b), dust segmentation (c), postprocessing with convex hull (d), and Hough circle detection (e), leading to marker extraction and watershed segmentation (f).