Fig. 6From: Multivariate unmixing approaches on Raman images of plant cell walls: new insights or overinterpretation of results?Comparison of multivariate methods on Raman data of Spruce with 5 endmembers and previous background subtraction. Distribution maps given by all methods: from top to bottom VCA, NMF, MCR-ALS with no previous PCA and MCR-ALS with prior PCABack to article page