Fig. 2
From: ImageJ2: ImageJ for the next generation of scientific image data
ImageJ update sites provide additional functionality to ImageJ. The Morphological Segmentation plugin, part of the MorphoLibJ plugin collection [100], easily segments the rings of ImageJ’s Tree Rings sample dataset (panel a). The MorphoLibJ plugins are installed into the Fiji distribution of ImageJ by enabling the IJPB-plugins update site (panel b). Credit to David Legland and Ignacio Arganda-Carreras for authoring the plugins