1. A biological image preprocessor, comprising: an interpolator in combination with a data rasterizer for interpolating, rasterizing, and filtering data obtained through application of liquid chromatographic and mass spectrometric techniques to biological replicates in a plurality of treatment groups indicative of different treatment conditions (“raw LC/MS data”) so as to map the raw LC/MS data to two-dimensional images each characterized by a first axis representing retention time and a second axis representing mass to charge ratio (m/z); a within-group replicates combiner for combining two-dimensional images of replicates within a same treatment group for each of the plurality of treatment groups into a plurality of within-group-replicate combined images; and a between-group image merger for merging the plurality of within-group-replicate combined images into a composite image.