Fig. 2From: Sampling strategies for estimating forest cover from remote sensing-based two-stage inventoriesReference maps artificially generated from the satellite map of Fig. 1, presuming three probability levels α = 0.80, 0.80, 0.85 that a pixel classified as forest from satellite information was interpreted as forest and three probability levels β = 0.70, 0.75, 0.85 that a pixel classified as non-forest from satellite information was interpreted as non-forestBack to article page