
were chosen based on the thickness of the objects. Part (e) is the thresholding
of the filtered image, which, after a union operation with the regional minima of
the input image, forms the markers for the watershed, as seen in (f ). The result
of the watershed from markers is seen in (g). An area closing fills in the catchment
basins, as seen in (h), and the contours computed from the gradient of part (h) are
overlaid on the input image in (i).
8.4.7 Hierarchical Watershed
A hierarchical,ormultiscale, watershed (MSW) transform creates a set of nested
partitions. The multiscale watershed presented here can be obtained by applying
the watershed from markers ...