Fig. 4
From: Multi-class segmentation of neuronal structures in electron microscopy images
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12859-018-2305-0/MediaObjects/12859_2018_2305_Fig4_HTML.png)
PIBoost separator in a three class problem. It is composed of three weak-learners (S1,S2,S3) separating each class, e.g. C1:mitochondrion, C2:synapse, C3:background, from the rest