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. 2019 Apr 23;91(10):6530–6540. doi: 10.1021/acs.analchem.8b05598

Figure 1.

Figure 1

Colocalization based classification scheme. (A) The correlation matrix is calculated from all the pairs of the MS ion images. The upper triangular matrix elements are vectorized to define the feature vector representing the MSI sample. (B) A classification model can be fitted on the colocalization feature vectors and the corresponding MSI sample labels.