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Figure 7: F scores using two distance metrics combined with manual, semiautomatic, and automatic ROIs. ME: Euclidean distance using manual ROI; MC: Cosine distance using manual ROI; SE: Euclidean distance using semiautomatic ROI; SC: Cosine distance using semiautomatic ROI; AE: Euclidean distance using automatic ROI; AC: Cosine distance using automatic ROI.