Fig. 3From: Exploring elucidation of red dye mixtures on woolen historical textiles via non-destructive spectroscopic analysis and multivariate cluster analysisFull dataset consisting of 204 swatches for a raw spectra, b baseline corrected spectra, c preprocessed spectra, and d spectra of the 6 outlier swatches removed from the dataset. For a and b, reflectance is given in percent expressed as a decimalBack to article page